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116 campgrounds and RV Parks near Onalaska, WA. Compare campsite amenities, photos, and site types to find the perfect stop for your rig on your route.
116 campgrounds
6833 campsites
88 RVs available for delivery
From $15/night
Own an RV? Earn up to $24,738/year.
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Best campgrounds near Onalaska, WA
Barrier Dam Campground
Salkum, WA (5 miles away)
Lewis and Clark State Park
Toledo, WA (6 miles away)
$$$$$
(39 sites)
+6
Paradise RV Campground
Washington (6 miles away)
$$$$$
(186 sites)
+9
Mayfield Park - Utility
Mossyrock, WA (8 miles away)
$$$$$
(55 sites)
Lake Mayfield RV Resort and Marina
Mossyrock, WA (8 miles away)
$$$$$
(58 sites)
+5
Ike Kinswa State Park
Washington (9 miles away)
$$$$$
(99 sites)
+7
Harmony Lakeside RV Park
Washington (10 miles away)
$$$$$
(80 sites)
+10
Winston Creek - Department of Natural Resources
Mossyrock, WA (12 miles away)
(11 sites)
Rivers Edge RV Campground
Toledo, WA (14 miles away)
$$$$$
(30 sites)
+2
Mossyrock Park - Utility
Mossyrock, WA (14 miles away)
$$$$$
(152 sites)
+3
Riverside Golf Course and RV Park
Chehalis, WA (15 miles away)
$$$$$
(26 sites)
Kid Valley Campground
Washington (15 miles away)
$$$$$
(25 sites)
+4
Most common amenities
Toilets Pet friendly Tables Showers Grills Dump station Internet Trails Hiking Firewood
Campgrounds near Onalaska, Washington
Onalaska sits in Lewis County in southwest Washington, between Interstate 5 and the Cascade foothills. The town serves as a practical base for RV trips to Mayfield Lake, the Cowlitz River, and the larger I-5 corridor between Portland and Seattle. Mount Rainier and Mount St. Helens are both within a roughly one to two hour drive.
The area offers a mix of state, utility, and privately operated campgrounds. Barrier Dam Campground sits near the Cowlitz River and caters heavily to anglers, with water and electric RV sites and tent spots. Lewis and Clark State Park preserves one of the last major stands of old-growth forest in western Washington and offers standard, non-hookup campsites suitable for tents and motorhomes. Paradise RV Campground is a private park in the surrounding forest.
For lakefront stays, Lake Mayfield RV Resort and Marina anchors the south end of Mayfield Lake with RV sites, cabins, and a full-service marina. Mayfield Park, operated by Tacoma Public Utilities, offers water and electric sites along the same reservoir, with a smaller number of full-hookup sites.
Things to do near Onalaska
Water recreation drives most trips. Mayfield Lake supports boating, swimming, waterskiing, kayaking, and trout fishing, with public launches at Mayfield Park and Lake Mayfield RV Resort and Marina. The Cowlitz River below Mayfield Dam is one of Washington's premier salmon and steelhead rivers, with public access at Barrier Dam.
On land, Lewis and Clark State Park has roughly eight miles of multiuse trails open to hikers and equestrians, winding through old-growth cedar and Douglas fir. Day trips reach Mount Rainier National Park, Mount St. Helens, Gifford Pinchot National Forest, and the White Pass Scenic Byway. Families often combine a lake day with a forest hike or a Cowlitz River fishing outing.
Camping spots and RV parks near Onalaska, WA
When to visit Onalaska
- spring
March - May
55° / 37°F 70 mmCool and showery; trails green up, fewer crowds
- summer
June - August
73° / 48°F 25 mmWarm and dry; lakefront sites fill weeks out
- fall
September - November
61° / 43°F 80 mmMild then wet; salmon and steelhead season
- winter
December - February
45° / 34°F 95 mmWet and cool; many seasonal parks closed
The main RV season runs roughly mid-April through mid-October. Mayfield Park's campground is open April 15 to October 15, with all Tacoma Public Utilities parks closed December 20 to January 1. The group camp at Mayfield Park operates between Memorial Day weekend and September 15. Lewis and Clark State Park operates seasonally, with the campground typically closed in the winter months.
Summer brings the warmest, driest weather and the most demand. Sites at popular lake parks book well ahead for July and August weekends, and lakefront spots fill earliest. Late spring and early fall offer cooler nights, fewer crowds, and good fishing on the Cowlitz.
Late fall and winter are wet and cool. Many seasonal campgrounds close, but Barrier Dam Campground operates year-round to serve winter steelhead anglers, and the Cowlitz produces fish in every season. Snow at valley elevations is uncommon but possible January through March.
Top Hosts near Onalaska, WA
Donald15 trips - Joined May 2023
Don and his wife were great hosts! The RV was in great condition, ran well, and they were both easy to communicate with. We were happy to see they even provided amenities such as kitchen appliances, plates, utensils, chairs and a BBQ. We would definitely go through them on our next trip if the RV is available!
Taylor M. - Aug 2025
The Leggs were really great and we appreciated the supplies that were included. There were camp chairs and even an outdoor grill.
Jodi S. - Jun 2025
Brent5 trips - Joined Apr 2025
This was my first time renting a trailer and it was a great experience. Brent made it so easy. He brought it to the campground and set it up perfectly for me even though the ground was quite uneven. The trailer was nice and clean. Cannot brag enough about how accommodating Brent was to work with.
Emily H. - Jul 2026
The owners communicated well and very helpful. We hope to rent from them again in the future.
COLIN R. - Aug 2025
How to book a campsite near Onalaska
Reservation systems vary by operator. Washington State Parks sites are booked through the central Washington State Parks reservation system by phone at (888) 226-7688 or online, typically nine months in advance. Some standard sites at Lewis and Clark State Park are first-come, first-served, so confirm before traveling.
Mayfield Park reservations run through Tacoma Public Utilities, which handles bookings by phone and online. Group camp reservations cover dates between Memorial Day weekend and September 15. Lake Mayfield RV Resort and Marina and Paradise RV Campground use their own private booking systems.
Barrier Dam Campground takes reservations directly through its website or by phone. For all properties, confirm rig length, hookup type, and any pet or campfire restrictions before locking in a date, since burn bans are common in late summer.
What to expect on the ground
Most campgrounds in the Onalaska area are forested, with gravel pads and shade from tall conifers. Hookup quality varies: state parks generally offer standard non-hookup sites, while Tacoma Public Utilities parks provide water and electric with some full-hookup options, and private parks like Lake Mayfield RV Resort and Marina tend to offer more full hookups.
Cell reception is inconsistent in the foothills and along the lakeshore. Some parks have coin-operated showers, and small camp stores carry firewood, ice, bait, and basic supplies. Sites near Interstate 5 or state highways can pick up road noise, so request interior or lakefront sites if quiet matters.
Expect cool, damp evenings even in summer. Pack layers, rain gear, and leveling blocks, since some lakeside and riverside sites slope toward the water. Black-tailed deer, raccoons, and the occasional bear pass through, so store food and trash properly.
Own an RV? Earn up to $24,738/year.
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Frequently asked questions about campgrounds near Onalaska, WA
How much does it cost to rent an RV in Onalaska, WA?
RV rental in Onalaska, WA is one of the more affordable ways to explore the Cascade foothills. On RVezy, towable trailers typically average around $100 to $150 per night, while motorhomes generally run about $175 to $250 per night, and many hosts offer weekly or monthly discounts. To stretch your budget, book a midweek trip in May or September when demand softens. Filter by Delivery to skip tow-vehicle costs, and message hosts directly about longer-stay discounts. A cheap RV rental Onalaska weekend at Mayfield Lake can come in well under $600 all-in.
rvezy.com/rv-search?SearchAddress=Onalaska,WashingtonWhat license do I need to rent an RV in Onalaska, WA?
Great news for first-time renters: a regular Washington driver's license is all you need to rent an RV in Onalaska, WA. The Washington State Department of Licensing does not require a commercial driver's license (CDL) or any special endorsement for personal RVs, including Class A motorhomes and large fifth wheels. You'll need to be 25 or older to book on RVezy, and your ID is verified securely through the platform during checkout. Visiting from outside the U.S.? Bring an International Driving Permit (IDP) along with your home-country license. That's it, you're cleared to roll out toward Riffe Lake or Mount Rainier.
dol.wa.gov/driver-licenses-and-permitsIs RV rental insurance included when I book in Onalaska?
Yes, every RVezy booking in Onalaska includes a renter protection plan and 24/7 roadside assistance, so you are covered from the moment you leave the host's driveway. The protection plan covers physical damage to the RV during your trip, and you choose your coverage level at checkout, not the host. While this is not a traditional auto policy, it provides real financial peace of mind on backroad shortcuts or rainy I-5 drives. Pick the tier that matches your comfort, then focus on planning stops at Ike Kinswa State Park and Mount St. Helens.
help.rvezy.com/hc/en-us/articles/34008759079835-RVezy-renter-protection-plans-in-detailWhat if I need to cancel my Onalaska RV rental?
Booking an RV rental in Onalaska, WA is low-risk. RVezy sets the cancellation policy, not individual hosts, and it includes a money-back grace period right after you book so you can lock in your dates with confidence. Refund eligibility after that depends on how far out your trip is and your selected policy. Because terms apply consistently across the platform, full details live in the RVezy Help Center rather than the listing page. Pro tip: book early for July and August Mount Rainier trips, the best rigs in Onalaska go fast.
help.rvezy.com/hc/en-us/articles/360037736674-Understanding-the-cancellation-policy-for-guestsCan I bring my dog on an RV trip from Onalaska?
Absolutely, a pet-friendly RV rental Onalaska trip is easy to put together. On RVezy, toggle the Pet-Friendly filter and you will see hosts who welcome dogs in their rigs. Lewis County is loaded with dog-friendly spots: Ike Kinswa State Park allows leashed pets on most trails and shoreline areas, and trails near Riffe Lake are popular for leashed walks. A Washington State Parks Discover Pass ($30 annually or $11.50 daily) covers day-use entry. Pack a towel for the door, the gravel beaches around Mayfield Lake mean muddy paws.
parks.wa.gov/find-parks-and-passes/state-parks/ike-kinswa-state-parkCan the RV be delivered to my campground in Onalaska?
Yes, RV delivery Onalaska is one of the most popular booking options, especially for first-timers who would rather skip driving a large motorhome down Highway 508. Many RVezy hosts will deliver and set up directly at popular spots like Ike Kinswa State Park, Mayfield Lake Park, or nearby Riffe Lake campgrounds. They level the rig, connect water and power, and walk you through every system before handing you the keys. Use the Delivery filter when searching, then message the host with your campsite number for a stress-free Onalaska RV trip.
rvezy.com/rv-search?SearchAddress=Onalaska,WashingtonHow far can I drive on an RV rental from Onalaska?
You have serious range from Onalaska. Hosts set their own mileage policies, and many offer generous daily allowances or even an RV rental with unlimited mileage, perfect for a Pacific Northwest loop. From Onalaska you are about 50 miles from Mount St. Helens Johnston Ridge Observatory, 65 miles to Mount Rainier's Paradise area, 60 miles to Olympia, 130 miles to Portland, OR, and roughly 100 miles to the Pacific coast at Long Beach. Each listing shows the mileage policy upfront, so filter and compare before booking. Pro tip: ask hosts about flat-rate mileage packages for multi-stop trips.
rvezy.com/rv-search?SearchAddress=Onalaska,WashingtonWhere are the best campgrounds near Onalaska, WA?
You are spoiled for choice when it comes to the best campgrounds near Onalaska. Top picks include Ike Kinswa State Park on Mayfield Lake (full and partial hookup sites, swimming beach, and trout fishing), Mayfield Lake Park (a Lewis County park with big-rig sites and a boat launch), Mossyrock Park on Riffe Lake (large grassy sites and a swim area), and Taidnapam Park at the east end of Riffe Lake (forested sites managed by Tacoma Power). Each is within roughly 20 to 30 minutes of downtown Onalaska. Book Ike Kinswa months ahead for summer weekends, it is the area's most coveted RV camping Onalaska destination.
parks.wa.gov/find-parks-and-passes/state-parks/ike-kinswa-state-parkWhen is the best time to rent an RV in Onalaska, WA?
July through early September is prime time for an Onalaska RV trip. Daytime highs sit in the comfortable mid-70s to low 80s°F, nights cool to the upper 40s and 50s, and rainfall drops to just an inch or two per month, ideal for lake swims at Mayfield and Riffe. June can be drizzly but green and uncrowded, while late September delivers crisp mornings, golden cottonwoods along the Cowlitz River, and the famous Onalaska Apple Harvest Festival. Winter (December-February) brings 40s°F and steady rain, but hardier rentals with furnaces let you chase snow at White Pass just 70 miles east. Shoulder-season bookings save 20-30%.
weather.gov/sew/I've never driven an RV before, is renting in Onalaska beginner-friendly?
Yes, Onalaska is a fantastic spot for your first time renting an RV. Roads here are quiet, well-paved, and forgiving: US-12 is a wide two-lane that runs straight through town, and the route to Ike Kinswa and Mayfield Lake involves easy turns and gentle grades. Every RVezy host gives you a full pre-trip walkthrough covering slide-outs, water systems, propane, and dump procedures, and you have 24/7 roadside support if anything feels off. For maximum confidence, choose a Class C motorhome or small travel trailer under 25 feet, or book a host who offers delivery. You'll be parked lakeside, lawn chair out, in no time.
wsdot.wa.gov/travel/real-time/mapWhat happens if I have a breakdown during my Onalaska RV trip?
You're never on your own. Every RVezy booking includes 24/7 roadside assistance as part of the protection package, covering flat tires, dead batteries, lockouts, fuel delivery, and towing. If you're out near Riffe Lake or up Highway 12 toward White Pass and something goes sideways, one phone call gets help dispatched to your location. Your host is also typically a phone or text away for quick fixes like resetting the inverter or relighting the water heater. Pro tip: snap a photo of the RV's VIN and the nearest mile marker before you leave camp, it speeds up any service call dramatically in rural Lewis County.
wsdot.wa.gov/travel/roads-bridges/incident-responseWhat are the best RV road trips from Onalaska, WA?
An RV road trip from Onalaska puts the Pacific Northwest's best at your doorstep. Top routes: drive south to Mount St. Helens and the Johnston Ridge Observatory area (about 50 miles via Highway 504); head east on US-12 to Mount Rainier's Paradise area (about 65 miles); cruise southwest to the Long Beach Peninsula for clam digging and beach driving (about 100 miles); or follow the Columbia River south to the Gorge waterfalls (about 130 miles). For a multi-day loop, combine Mount Rainier, White Pass, and Yakima wine country. Travel into Oregon is generally permitted with your RVezy rental; travel to Mexico is not.
nps.gov/mora/index.htmWhat kind of fuel economy and budget should I plan for?
Plan realistically and you'll cruise stress-free. Class C motorhomes around Onalaska average 8-10 miles per gallon (MPG), Class A's hover at 6-8 MPG, campervans hit 16-20 MPG, and towables depend on your tow vehicle but typically add 30-40% to its normal consumption. Washington gas prices currently average around $4.20-$4.50 per gallon, with the Shell and Chevron stations in Chehalis (10 miles west) usually cheaper than Morton or Packwood. For a typical 200-mile weekend loop around Mount Rainier and Riffe Lake, budget $80-$120 in fuel for a Class C. Top off in Chehalis before heading east, prices climb fast toward White Pass.
eia.gov/petroleum/gasdiesel/How far in advance should I book a campground near Onalaska?
For summer weekends (June through August), book Washington State Parks like Ike Kinswa and Seaquest as early as possible through the Washington State Parks reservation system at parks.wa.gov. Reservations open on a rolling window and the most popular waterfront sites are claimed quickly. Lewis County parks like Mayfield Lake Park open through their county reservation portal a few months out. Private parks often have more flexibility, sometimes just a week or two ahead. For shoulder season (May, September, October), 2 to 4 weeks is usually plenty. Pro tip: midweek arrivals at Mossyrock Park often score lake-view sites.
washington.goingtocamp.com/What are driving conditions like around Onalaska?
Driving around Onalaska is relaxing compared to most of the I-5 corridor. US-12 and Highway 508 are well-maintained two-lane routes with easy curves and light traffic, great for new RVers. Things to watch: logging trucks on weekday mornings, fog in the Cowlitz Valley from October through March, and occasional snow on US-12 east of Morton from November through April (chains are required when posted by WSDOT). Avoid driving large rigs through downtown Chehalis at rush hour. Check WSDOT's real-time map before crossing White Pass. Otherwise, it is pure scenic Cascade cruising.
wsdot.com/travel/real-time/mountainpassesWhat hookups and amenities will I find at Onalaska campgrounds?
Most developed campgrounds near Onalaska offer solid amenities. Ike Kinswa State Park has full and partial hookup sites (water, 30/50 amp electric, sewer at select sites) plus a dump station, potable water, hot showers, and flush toilets. Mayfield Lake Park and Mossyrock Park provide water and electric at most sites with dump stations on-site. Taidnapam Park offers hookup sites and a fish-cleaning station. Cell service is solid in town but spotty around Riffe Lake, so download offline maps before heading out. Wi-Fi is rare at state parks, so plan to truly unplug.
parks.wa.gov/find-parks-and-passes/state-parks/ike-kinswa-state-parkWhat's actually inside an RV rental in Onalaska?
Modern RVs on RVezy come fully equipped for your Onalaska adventure. Expect a queen or king bed, convertible dinette, full kitchen (fridge/freezer, three-burner propane stove, microwave, sink), wet or dry bathroom with shower and toilet, roof-mounted air conditioning, propane furnace, and seatbelted seating for travel. Most Class C motorhomes near Onalaska sleep 4-6, campervan rental Onalaska options sleep 2-3, and larger Class A or fifth-wheel motorhome rental Onalaska options sleep 6-8 comfortably. Many include onboard generators (handy for Riffe Lake boondocking), TVs, and Bluetooth stereos. Wi-Fi hotspots are a popular add-on, ask the host since cell coverage thins fast east of Mossyrock.
fcc.gov/consumers/guides/rv-cell-phone-and-internet-servicesWhat add-ons and pickup options should I know about?
Hosts in Onalaska offer a menu of add-ons that make life easier: linen and kitchen kits ($30-$75), camping chairs and outdoor rugs ($15-$30), generators ($15-$25/night), bike racks, kayaks, and propane fills. Many include a starter tank of propane and a full waste-tank dump at return. Pickup is usually at the host's home in or near Onalaska between 1-4 PM, with return by 11 AM, though flexible windows are often negotiable via message. Mileage policies range from 100 free miles per day to truly unlimited, check the listing details. Pro tip: bundle delivery, setup, and a generator for a turnkey Mayfield Lake weekend with zero hassle.
energy.gov/eere/vehicles/articles/fuel-economy-trucks-suvs-and-vansHow does payment and the security deposit work?
Payment on RVezy is simple and secure: your card is charged at booking, RVezy holds the funds, and the host is paid out after your trip starts, so no cash changes hands at pickup. The security deposit is a temporary hold placed on your card before your trip and released after return, assuming no damage or excess mileage. To avoid issues, complete the pre-trip walkthrough with your host, photograph any existing dings, return with empty waste tanks and a full fuel tank, and stay within your mileage allowance. Transparent and straightforward.
help.rvezy.com/hc/en-us/articles/360038106214-How-the-security-deposit-worksCan I rent an RV in Onalaska in winter?
Yes, and winter RV camping Onalaska can be magical with the right rig. Lewis County winters are mild and wet, averaging roughly 35 to 45 degrees F with steady rain rather than deep snow at valley elevations. For comfort, filter for RVs with heated holding tanks, an enclosed underbelly, and a working propane furnace, perfect for chasing fresh powder at White Pass Ski Area (about 70 miles east on US-12) or steelhead fishing the Cowlitz River. Ike Kinswa State Park stays open year-round with reduced services. Pack tire chains (legally required on White Pass when posted) for a quiet, scenic off-season Cascade escape.
wsdot.wa.gov/travel/roads-bridges/traction-and-chain-requirementsNearby cities with campgrounds
Seattle, WAPortland, OROlympia, WAPaine Field-Lake Stickney, WACovington, WAGraham, WAPuyallup, WASandy, ORElk Plain, WAHazel Dell, WATigard, ORMaywood Park, ORMilwaukie, ORFife, WASalem, ORHappy Valley, ORTumwater, WAMaple Valley, WACascade-Fairwood, WAAlbany, ORFife Heights, WAPrairie Ridge, WAKeizer, ORTanglewilde, WA