RV Dump Stations In Knoxville, Iowa
41.3208° N, 93.1094° W
Quick Overview
Knoxville is a small central-Iowa town with an outsized reputation, known worldwide as the Sprint Car Capital of the World and sitting just north of Lake Red Rock, Iowa's largest reservoir. For RVers, that combination shapes everything about emptying tanks here. We count several dump stations in and around town, and with some of them free, plan on paying through a campground stay to handle your waste. The good news is that Lake Red Rock, about five miles south, gives you a tight cluster of public campgrounds with reliable dump stations.
The U.S. Army Corps of Engineers runs Whitebreast and North Overlook campgrounds on the lake, each with a central dump station, water, and showers, and Elk Rock State Park adds more shoreline camping with its own dump. Right on the edge of Knoxville, Marion County Park has 100 sites with a dump station too. You can check status and reserve the Corps sites through Recreation.gov. The town does not run a public municipal dump, so these campground stations are your practical backbone. The raceway campground has a dump as well, but it is geared to event guests during race weekends.
Because dumping here revolves around the lake and the fairgrounds, the smartest play is to line up your dump, fresh-water top-off, and propane refill around one stop rather than crisscrossing town. The Corps and state campgrounds are seasonal, generally open spring through October, so in winter you have very limited options and should plan to arrive with empty tanks. If you are in town for racing or the lake, booking a campground site for a night or two folds your dump into the stay and gives you a quiet base close to the action.
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Gear for Your Trip to Knoxville
All Dump Stations Near Knoxville
| Station Name | Distance | Rating | Category | Cost |
|---|---|---|---|---|
| Elk Rock State Park | 5.3 mi | N/A | Dump Station | Varies |
| U.S. Army Corps of Engineers - Whitebreast Campground | 6.1 mi | N/A | Dump Station | Varies |
| U.S. Army Corps of Engineers - North Overlook Campground | 6.9 mi | N/A | Dump Station | Varies |
| U.S. Army Corps of Engineers - Howell Station Campground | 8.0 mi | N/A | Dump Station | Varies |
| U.S. Army Corps of Engineers - Wallashuck Campground | 8.3 mi | N/A | Dump Station | Varies |
| Miami Lake Park | 18.9 mi | N/A | Dump Station | Free |
| Red Haw State Park | 23.6 mi | N/A | Dump Station | Varies |
| Warren County Fairgrounds - Campground | 24.5 mi | N/A | Dump Station | Varies |
| Yellow Banks Park | 24.6 mi | 4.5 | Dump Station | Free |
| Lake Ahquabi State Park | 24.7 mi | N/A | Dump Station | Varies |
Elk Rock State Park
5.3 miU.S. Army Corps of Engineers - Whitebreast Campground
6.1 miU.S. Army Corps of Engineers - North Overlook Campground
6.9 miU.S. Army Corps of Engineers - Howell Station Campground
8.0 miU.S. Army Corps of Engineers - Wallashuck Campground
8.3 miMiami Lake Park
18.9 miRed Haw State Park
23.6 miWarren County Fairgrounds - Campground
24.5 miYellow Banks Park
24.6 miLake Ahquabi State Park
24.7 miTraveling to Knoxville by RV
Knoxville sits at the crossroads of Iowa Highway 14 and Iowa Highway 92, both two-lane rural routes with no low bridges or weight limits to trouble a big rig. Iowa-14 is the main drag through town and runs right past the raceway and the National Sprint Car Hall of Fame. The nearest interstates are I-35, about 40 miles west near Des Moines, and I-80, roughly 45 miles north, so most RVers arrive on the state highways.
Fuel is available on Iowa-14 through town, with larger truck stops up near I-80. Propane and groceries are covered in Knoxville and in nearby Pella, a short drive northeast. RV repair is limited locally, so plan on the Des Moines metro for anything major. For state park camping details and reservations, the Iowa DNR posts information at iowadnr.gov. Provision in town before you drop down to the lake and you will not need to backtrack.
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Before You Go: RV Trip Essentials
Dump stations are only one piece of the trip puzzle. Before you set out for your trip to Knoxville, Iowa, it's worth taking thirty minutes to check that the basics are in place — the four areas below are where unprepared RVers most often get stung.
Check your RV insurance coverage
A standard auto policy rarely covers a Class A, Class C, or travel trailer the way a dedicated RV insurance policy does. If you're financing a motorhome, lenders typically require comprehensive and collision; full-timers should additionally price in vacation liability and personal belongings coverage. Rates vary widely by state and travel pattern — compare quotes from multiple RV-focused carriers before each season.
Know your roadside assistance options
RV-specific roadside plans tow motorhomes and trailers that regular AAA coverage won't touch — flat beds, mobile mechanics, tire service for duallies, and even emergency lockouts at remote campgrounds. Good plans cover your spouse and trailer even if you're driving a separate vehicle, and some include trip interruption reimbursement if a breakdown costs you a reservation.
Decide about an extended warranty early
Original manufacturer warranties on new RVs typically run 12–24 months — shorter than most buyers realize. An extended service contract (essentially a mechanical breakdown policy) covers the appliances, slides, levelling systems, and drivetrain components that can run $3,000–$10,000 to replace. The time to price one is before the factory coverage expires, not after something breaks.
Set up a travel rewards card for fuel and fees
A no-annual-fee travel or gas rewards card pays for itself on a single month of RV travel. Expect to spend $400–$800 per week combined on fuel, campgrounds, and propane — 3–5% cash back on gas alone covers the next oil change. For bigger trips, a sign-up bonus can offset campground fees for the whole season.
RVingLife is supported by advertising. Third-party ads on this page may include insurance quotes, roadside plans, warranty coverage, or financial products relevant to the topics above. We don't endorse any specific provider — compare multiple offers before you commit. Privacy policy.
Dump Station Costs in Knoxville
Dumping around Knoxville is inexpensive as long as you camp. The Corps of Engineers sites at Lake Red Rock and the county and state campgrounds bundle the dump station into a low nightly rate, and Corps sites often honor the federal senior and access pass discounts. There is no free municipal dump in town, so the real cost of dumping is essentially a campground night. During the Knoxville Nationals in August, expect rates and demand to spike everywhere within range of the raceway, so book early to lock in a spot. Propane runs in line with the rest of central Iowa. For a short visit, a single night at a Lake Red Rock campground is usually the most economical way to cover your dump, water, and a quiet place to park close to the lake and the track.
Contact station for pricing details.
Prices may vary. Always confirm with the station before visiting.
What RVers Are Saying About Knoxville
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Best Time to Visit Knoxville by RV
Winter
Nov - Feb
16F - 32F
Crowds: Low
Cold and snowy; Lake Red Rock campgrounds and their dump stations close for the season.
Spring
Mar - May
42F - 62F
Crowds: Medium
Campgrounds reopen and racing starts in April; expect wet, muddy sites early.
Summer
Jun - Aug
64F - 84F
Crowds: High
Peak lake and racing season; dump stations open and busy, especially Nationals week in August.
Fall
Sep - Oct
44F - 65F
Crowds: Medium
Pleasant weather and open sites until late-season Corps closures.
Explore the Knoxville Area
Here is what we have picked up around Knoxville. First, the August Knoxville Nationals is the biggest week of the year, when tens of thousands of sprint-car fans descend and every campground, lot, and dump station fills solid; book many months ahead or steer clear if you are not here for racing. Second, Lake Red Rock is your dump-and-camp hub. The Corps of Engineers campgrounds at Whitebreast and North Overlook, plus Elk Rock State Park, give you dependable dump stations tied to affordable sites just south of town. Third, these lake campgrounds are seasonal, usually open May into October, so in the cold months you will have almost no local dump options and should arrive with empty tanks. Fourth, top off propane and groceries in Knoxville or Pella before heading to the lake, since services at the shoreline are minimal. Finally, Marion County Park on the edge of town is a handy fallback with a dump station and a fishing lake if the Corps sites are full.
National Parks Nearby
Frequently Asked Questions About Dump Stations in Knoxville
How many RV dump stations are in Knoxville, Iowa?
We count about several dump stations in and around Knoxville, and most of them are attached to campgrounds rather than being standalone facilities. With some of them free, plan on paying through a campground stay to empty your tanks. The best cluster is at Lake Red Rock, about five miles south, where the Corps of Engineers campgrounds, Elk Rock State Park, and Marion County Park all have dump stations for registered campers. If you are staying at one of those sites, the dump is part of your fee, which is the easiest and cheapest way to handle waste while you are in the Knoxville area.
Is there a free RV dump station in Knoxville?
Free options are limited in Knoxville. The town does not run a public municipal dump, and nearly all dumping happens at campgrounds where the fee is part of your stay. Your cheapest realistic path is to camp a night at a Corps of Engineers site at Lake Red Rock or at Marion County Park, where the dump station is included in an already low nightly rate. If you need a true no-cost dump, use one at a campground where you are already registered. Do not count on finding a free public station in town, since there simply is not one.
Can I dump my RV tanks at Lake Red Rock?
Yes. Lake Red Rock, just south of Knoxville, is the best place to dump in the area. The U.S. Army Corps of Engineers runs Whitebreast and North Overlook campgrounds there, each with a central dump station, water, and showers, and Elk Rock State Park adds another dump on the north side of the lake. These stations are for registered campers, so the dump is part of your stay rather than a walk-up service. The campgrounds are seasonal, generally open spring through October, so check current status and reserve the Corps sites through Recreation.gov before you arrive.
Where do RVs dump during the Knoxville Nationals?
During the August Knoxville Nationals, the raceway campground and the Marion County Fairgrounds fill with race fans, and both have dump stations geared to event guests. Demand is enormous that week, so the dump lanes back up and every campground within range of the track sells out. If you are attending, reserve your site months ahead and be patient with the lines. If you can dump before or after the event at a Lake Red Rock campground, you will avoid the worst of the congestion. Outside Nationals week, the lake campgrounds are the calmer and more reliable option for emptying tanks.
Where can I refill propane near Knoxville?
Propane is available from dealers and hardware stores in Knoxville and in nearby Pella, a short drive northeast. Because this is a small town, hours can be limited, so call ahead and fill up during the week when you can. If you are camping at Lake Red Rock, top off in town first, since the shoreline campgrounds do not have propane on site. For anything you cannot find locally, the Des Moines metro about 40 miles west has full service. Plan your propane stop into your grocery and fuel run through Knoxville so you handle everything in one loop before dropping down to the lake.
Is Knoxville easy to reach in a big rig?
Yes. Knoxville sits where Iowa Highway 14 meets Iowa Highway 92, both two-lane rural routes with no low bridges or weight restrictions, so big motorhomes and fifth-wheels get in and out comfortably. Iowa-14 is the main road through town and passes the raceway and museum. The nearest interstates are I-35 about 40 miles west near Des Moines and I-80 roughly 45 miles north, so you will spend the last stretch on state highways. Traffic is light most of the year, with the notable exception of the August Nationals week, when the roads around the raceway get packed and slow.
When is the busiest time for RVs in Knoxville?
The single biggest week is the Knoxville Nationals in August, when the Sprint Car Capital of the World draws tens of thousands of fans and fills every campground, lot, and dump station for miles. Beyond that, the summer lake season from Memorial Day through Labor Day keeps the Lake Red Rock campgrounds busy, especially on weekends. Weekly Saturday racing from April through September adds regular crowds too. If you want a quiet visit with easy access to services, aim for a weekday in late spring or September. Winter is the slowest, but most campgrounds and their dump stations close then.
What does it cost to dump RV tanks in Knoxville?
If you camp at a Corps of Engineers site at Lake Red Rock, at Elk Rock State Park, or at Marion County Park, the dump station is included in your nightly fee, and those rates are among the lowest around. Corps sites often qualify for the federal senior and access pass discounts as well. Because there is no free municipal dump in town, the effective cost of dumping is really the price of a campground night. During Nationals week in August, rates and demand climb sharply near the raceway. For a short stop, one night at a lake campground is usually the cheapest way to cover your dump, water, and a place to park.
Where do I get fresh water for my RV in Knoxville?
The Lake Red Rock campgrounds, Elk Rock State Park, and Marion County Park all have potable water for campers, so filling your fresh tank is simple wherever you stay. If you book an electric site at one of those campgrounds, water is available at the site or nearby. For a quick top-off while passing through, the campgrounds are your most reliable source, usually right beside the dump station. Fill up before heading into the more rural country away from the lake, where dependable potable-water sources become harder to find. In town, ask at a campground rather than expecting a public fill point.
Are there truck stops with dump stations near Knoxville?
Not really in Knoxville itself. Fuel in town is limited to standard stations on Iowa Highway 14, and the larger travel centers with RV dump lanes sit up near Interstate 80, roughly 45 miles north. For emptying tanks in the immediate area, the dependable options are the campgrounds at Lake Red Rock, Elk Rock State Park, and Marion County Park rather than a truck stop. If you prefer a highway-style dump, plan to handle it on your way in or out of the region near I-80. Within Knoxville, a campground stay is the more reliable choice for a dump station.
Can I stay overnight in a parking lot in Knoxville?
Knoxville is a small town without a lot of big-box retail, and town lots are not set up for overnight camping, so do not treat them as a campground substitute. Individual businesses set their own rules, so ask a manager before settling in for the night. With affordable Corps of Engineers, state, and county campgrounds clustered around Lake Red Rock just south of town, the better move is to book a proper site, which gives you power, water, and a dump station for a low rate. Save lot-parking for genuine emergencies and reserve a campground for anything longer than a quick stop.
Do the Lake Red Rock campgrounds stay open year-round?
No. The Corps of Engineers campgrounds at Lake Red Rock, along with Elk Rock State Park and Marion County Park, are seasonal, generally opening in spring and closing by late October. When they close, their dump stations and water shut off too, so winter RVers have very few local options and should arrive with empty tanks. The exact dates shift with weather and water levels, so always confirm current status before you go. On the Corps sites, check Recreation.gov, since high water on the Des Moines River behind the dam occasionally forces early closures or limits which loops are open.
Is Knoxville a good base for RVers?
It is a fun base if you like racing or lake time. Knoxville is the Sprint Car Capital of the World, home to the famous raceway and the National Sprint Car Hall of Fame, and it sits right above Lake Red Rock, Iowa's largest lake, with beaches, trails, and good fishing across thousands of acres of public land. The Corps of Engineers and state campgrounds give you affordable, quiet sites with dump stations close to town. Pella and its Dutch heritage are a short drive away, and Des Moines is under an hour. For an RVer who wants dirt-track racing and easy lake camping, Knoxville delivers.
How many RV dump stations are in Knoxville, Iowa?
We count about {{stationCount}} dump stations in and around Knoxville, and most of them are attached to campgrounds rather than being standalone facilities. With {{freeCount}} of them free, plan on paying through a campground stay to empty your tanks. The best cluster is at Lake Red Rock, about five miles south, where the Corps of Engineers campgrounds, Elk Rock State Park, and Marion County Park all have dump stations for registered campers. If you are staying at one of those sites, the dump is part of your fee, which is the easiest and cheapest way to handle waste while you are in the Knoxville area.
Is there a free RV dump station in Knoxville?
Free options are limited in Knoxville. The town does not run a public municipal dump, and nearly all dumping happens at campgrounds where the fee is part of your stay. Your cheapest realistic path is to camp a night at a Corps of Engineers site at Lake Red Rock or at Marion County Park, where the dump station is included in an already low nightly rate. If you need a true no-cost dump, use one at a campground where you are already registered. Do not count on finding a free public station in town, since there simply is not one.
Can I dump my RV tanks at Lake Red Rock?
Yes. Lake Red Rock, just south of Knoxville, is the best place to dump in the area. The U.S. Army Corps of Engineers runs Whitebreast and North Overlook campgrounds there, each with a central dump station, water, and showers, and Elk Rock State Park adds another dump on the north side of the lake. These stations are for registered campers, so the dump is part of your stay rather than a walk-up service. The campgrounds are seasonal, generally open spring through October, so check current status and reserve the Corps sites through Recreation.gov before you arrive.
Where do RVs dump during the Knoxville Nationals?
During the August Knoxville Nationals, the raceway campground and the Marion County Fairgrounds fill with race fans, and both have dump stations geared to event guests. Demand is enormous that week, so the dump lanes back up and every campground within range of the track sells out. If you are attending, reserve your site months ahead and be patient with the lines. If you can dump before or after the event at a Lake Red Rock campground, you will avoid the worst of the congestion. Outside Nationals week, the lake campgrounds are the calmer and more reliable option for emptying tanks.
Where can I refill propane near Knoxville?
Propane is available from dealers and hardware stores in Knoxville and in nearby Pella, a short drive northeast. Because this is a small town, hours can be limited, so call ahead and fill up during the week when you can. If you are camping at Lake Red Rock, top off in town first, since the shoreline campgrounds do not have propane on site. For anything you cannot find locally, the Des Moines metro about 40 miles west has full service. Plan your propane stop into your grocery and fuel run through Knoxville so you handle everything in one loop before dropping down to the lake.
Is Knoxville easy to reach in a big rig?
Yes. Knoxville sits where Iowa Highway 14 meets Iowa Highway 92, both two-lane rural routes with no low bridges or weight restrictions, so big motorhomes and fifth-wheels get in and out comfortably. Iowa-14 is the main road through town and passes the raceway and museum. The nearest interstates are I-35 about 40 miles west near Des Moines and I-80 roughly 45 miles north, so you will spend the last stretch on state highways. Traffic is light most of the year, with the notable exception of the August Nationals week, when the roads around the raceway get packed and slow.
When is the busiest time for RVs in Knoxville?
The single biggest week is the Knoxville Nationals in August, when the Sprint Car Capital of the World draws tens of thousands of fans and fills every campground, lot, and dump station for miles. Beyond that, the summer lake season from Memorial Day through Labor Day keeps the Lake Red Rock campgrounds busy, especially on weekends. Weekly Saturday racing from April through September adds regular crowds too. If you want a quiet visit with easy access to services, aim for a weekday in late spring or September. Winter is the slowest, but most campgrounds and their dump stations close then.
What does it cost to dump RV tanks in Knoxville?
If you camp at a Corps of Engineers site at Lake Red Rock, at Elk Rock State Park, or at Marion County Park, the dump station is included in your nightly fee, and those rates are among the lowest around. Corps sites often qualify for the federal senior and access pass discounts as well. Because there is no free municipal dump in town, the effective cost of dumping is really the price of a campground night. During Nationals week in August, rates and demand climb sharply near the raceway. For a short stop, one night at a lake campground is usually the cheapest way to cover your dump, water, and a place to park.
Where do I get fresh water for my RV in Knoxville?
The Lake Red Rock campgrounds, Elk Rock State Park, and Marion County Park all have potable water for campers, so filling your fresh tank is simple wherever you stay. If you book an electric site at one of those campgrounds, water is available at the site or nearby. For a quick top-off while passing through, the campgrounds are your most reliable source, usually right beside the dump station. Fill up before heading into the more rural country away from the lake, where dependable potable-water sources become harder to find. In town, ask at a campground rather than expecting a public fill point.
Are there truck stops with dump stations near Knoxville?
Not really in Knoxville itself. Fuel in town is limited to standard stations on Iowa Highway 14, and the larger travel centers with RV dump lanes sit up near Interstate 80, roughly 45 miles north. For emptying tanks in the immediate area, the dependable options are the campgrounds at Lake Red Rock, Elk Rock State Park, and Marion County Park rather than a truck stop. If you prefer a highway-style dump, plan to handle it on your way in or out of the region near I-80. Within Knoxville, a campground stay is the more reliable choice for a dump station.
Can I stay overnight in a parking lot in Knoxville?
Knoxville is a small town without a lot of big-box retail, and town lots are not set up for overnight camping, so do not treat them as a campground substitute. Individual businesses set their own rules, so ask a manager before settling in for the night. With affordable Corps of Engineers, state, and county campgrounds clustered around Lake Red Rock just south of town, the better move is to book a proper site, which gives you power, water, and a dump station for a low rate. Save lot-parking for genuine emergencies and reserve a campground for anything longer than a quick stop.
Do the Lake Red Rock campgrounds stay open year-round?
No. The Corps of Engineers campgrounds at Lake Red Rock, along with Elk Rock State Park and Marion County Park, are seasonal, generally opening in spring and closing by late October. When they close, their dump stations and water shut off too, so winter RVers have very few local options and should arrive with empty tanks. The exact dates shift with weather and water levels, so always confirm current status before you go. On the Corps sites, check Recreation.gov, since high water on the Des Moines River behind the dam occasionally forces early closures or limits which loops are open.
Is Knoxville a good base for RVers?
It is a fun base if you like racing or lake time. Knoxville is the Sprint Car Capital of the World, home to the famous raceway and the National Sprint Car Hall of Fame, and it sits right above Lake Red Rock, Iowa's largest lake, with beaches, trails, and good fishing across thousands of acres of public land. The Corps of Engineers and state campgrounds give you affordable, quiet sites with dump stations close to town. Pella and its Dutch heritage are a short drive away, and Des Moines is under an hour. For an RVer who wants dirt-track racing and easy lake camping, Knoxville delivers.
Are there free dump stations in Knoxville?
Yes — there are free RV waste disposal options available near Knoxville.
All Dump Stations Near Knoxville (44)
RV Dump StationsYellow Banks Park
RV Dump StationsIndian Hills RV Park
RV Dump StationsU.S. Army Corps of Engineers - Bridge View Park (Rathburn Lake)
RV Dump StationsWarren County Fairgrounds - Campground
RV Dump StationsLake Ahquabi State Park
RV Dump StationsHoney Creek State Park
RV Dump StationsRathbun Lake - Rolling Cove Park
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