Camping near Castle Rock, Washington

Camping near Castle Rock, Washington includes 1 public campground on record, 1 reservable. All are run by the state park system. 1 stays open all year. Another 13 public campgrounds filed under nearby towns are within 30 miles of Castle Rock.

Seaquest State Park

noindex Fewer than 5 campgrounds here clear the indexable bar yet, so this page stays noindex.

Camping near Castle Rock at a glance

Public campgrounds: 1 (1 State Park)
Getting a site: 1 reservable
Cost: Lowest posted fee at Seaquest State Park: "Peak nightly (statewide): standard $31-$43, partial hookup $41-$51, full hookup $46-$56"
Distance from Castle Rock: 4.3 miles in a straight line
Elevation: 575 ft at Seaquest State Park (the only one on record)
Season: 1 open all year
Campsites: 88 across the 1 campground that state a count
RVs: 1 take RVs; hookups at Seaquest State Park; longest stated RV length 50 ft (Seaquest State Park)
Drinking water: 1 of 1

Distances are straight-line miles from Castle Rock's point in the US Census Bureau Gazetteer (2025), not driving distances. Every other fact comes from each campground's own sourced record, linked from its page.

Reservable Seaquest State Park Castle Rock · State Park · 4.3 mi

Agency: State Park
Sites: 88
Season: Year-round
Fee: Peak nightly (statewide): standard $31-$43, partial hookup $41-$51, full hookup $46-$56

More campgrounds within 30 miles of Castle Rock

Harry Gardner Park, 10 miles from Castle Rock in a straight line , County ($25/night RV site, $20 tent site; $5 dump fee for RVs not staying); listed under camping near Toutle.
County Line Park, 17 miles from Castle Rock in a straight line , Other Agency , reservable ($45/night RV (power only), $30 dry camping; $10 extra car or tent; $10 RV dump for non-guests); listed under camping near Cathlamet.
Lewis and Clark State Park, 18 miles from Castle Rock in a straight line , State Park , reservable (Peak nightly (statewide): standard $31-$43, full hookup $46-$56, primitive $12); listed under camping near Winlock.
Elochoman Slough Marina Dike Camping, 24 miles from Castle Rock in a straight line , Other Agency , reservable ($45/night or $275/week); listed under camping near Cathlamet.
Winston Creek Campground, 24 miles from Castle Rock in a straight line , State Forest , reservable ; listed under camping near Mossyrock.
Mayfield Lake Park, 24 miles from Castle Rock in a straight line , Other Agency , reservable ($51/night water/electric; waterfront sites 42-55 $59; 12-site group camp $270); listed under camping near Mossyrock.
Ike Kinswa State Park, 26 miles from Castle Rock in a straight line , State Park , reservable (Peak nightly (statewide): standard $31-$43, partial hookup $41-$51, full hookup $46-$56); listed under camping near Silver Creek.
Skamokawa Vista Park, 27 miles from Castle Rock in a straight line , Other Agency , reservable ($60 full hookup, $55 river view, $50 partial hookup, $38 tent per night; yurts $75-$85; $5 extra vehicle); listed under camping near Skamokawa.
Mossyrock Park, 28 miles from Castle Rock in a straight line , Other Agency , reservable ($51 water/electric or no hookup, $35 walk-in tent (May 15-Sept 15); $40/$25 off season; groups $315); listed under camping near Mossyrock.
Kalama Horse Camp, 29 miles from Castle Rock in a straight line , National Forest , reservable (Single site: $23 per night; additional vehicle $8 per night); listed under camping near Cougar.
Southwest Washington Fairgrounds Park Campground, 29 miles from Castle Rock in a straight line , County , reservable ; listed under camping near Centralia.
Rainbow Falls State Park, 30 miles from Castle Rock in a straight line , State Park , reservable (Peak nightly (statewide): standard $31-$43, partial hookup $41-$51); listed under camping near Chehalis.
Paradise Point State Park, 30 miles from Castle Rock in a straight line , State Park , reservable (Peak nightly (statewide): standard $31-$43, partial hookup $41-$51, primitive $12); listed under camping near Ridgefield.

Things to do near Castle Rock

Public land and water within 30 miles of Castle Rock, the public land its campgrounds sit in, and landmarks at those campgrounds, nearest first.

Seaquest State Park, its campground is 4.3 miles from Castle Rock; publiclandsdb.com has its hours, entrance fee, and boundary.
Lake Sacajawea fishing, a fishing water whose mapped point is 10 miles from Castle Rock; stocking record and species on fishypedia.com.
South Lewis County Park Pond fishing, a fishing water whose mapped point is 12 miles from Castle Rock; stocking record and species on fishypedia.com.
Kress Lake fishing, a fishing water whose mapped point is 16 miles from Castle Rock; stocking record and species on fishypedia.com.
Lewis and Clark State Park (Washington), a state park whose mapped point is 18 miles from Castle Rock; its hours, entrance fee, and boundary on publiclandsdb.com.
Jackson House State Park Heritage Site, a state park whose mapped point is 19 miles from Castle Rock; its hours, entrance fee, and boundary on publiclandsdb.com.
Matilda N. Jackson State Park Heritage Site, a state park whose mapped point is 20 miles from Castle Rock; its hours, entrance fee, and boundary on publiclandsdb.com.
Carlisle Lake fishing, a fishing water whose mapped point is 23 miles from Castle Rock; stocking record and species on fishypedia.com.
Eagle Island State Park (Washington), a state park whose mapped point is 25 miles from Castle Rock; its hours, entrance fee, and boundary on publiclandsdb.com.
Mayfield Lake fishing, a fishing water whose mapped point is 26 miles from Castle Rock; stocking record and species on fishypedia.com.

Supplies and emergencies near Castle Rock

Nearest emergency room: Peacehealth St John Medical Center, 1615 Delaware St, Longview, WA, 9.9 miles from Castle Rock , (360) 414-2000. Next nearest: Providence Centralia Hospital, 914 S Scheuber Rd, Centralia, WA, 31 miles, (360) 330-8530. Both report emergency services in the CMS Hospital General Information dataset (accessed 2026-09-26) . In an emergency, call 911.

Groceries: Speedy Mart convenience store · 0.3 miles
Touch of Wheatlands convenience store · 0.4 miles
Cascade Select Market supermarket · 0.4 miles · (360) 274-4143 · Hours Mo-Su 07:00-22:00 || "Hours on some holidays may vary"
Fuel: Gasco fuel station · 0.3 miles
CFN fuel station · 0.9 miles
Chevron fuel station · 0.9 miles
RV dump station: Mt. St. Helens RV Park campground · 2.7 miles
Dump Station RV dump station · 4.4 miles
County Line Park RV park · 17 miles · (360) 795-3501
Pharmacy: Castle Rock Pharmacy pharmacy · 0.3 miles · (360) 274-8211 · Hours Mo-Fr 10:00-18:30; Sa 10:00-16:00
CVS Pharmacy pharmacy · 8.9 miles · (360) 578-7387 · Hours Sa, Su 09:00-13:30, 14:00-18:00; Mo-Fr 09:00-13:30, 14:00-20:00
Safeway pharmacy · 9 miles · (360) 636-5430 · Hours Mo-Fr 09:00-13:30,14:00-21:00; Sa 09:00-13:30,14:00-18:00; Su 10:00-13:30,14:00-18:00
Laundromat: Allen Street Laundry laundromat · 8.8 miles · Hours 24/7
Twin City Laundry laundromat · 9.1 miles
Coin Laundry laundromat · 10 miles · Hours 24/7

Not mapped in OpenStreetMap within 25 miles of Castle Rock: propane, potable water fill, and ice. Stores, fuel, propane, dump stations, water fill, laundromats, and pharmacies are the nearest few mapped within 25 miles, straight-line, © OpenStreetMap contributors (data as of 2026-09-29; this extract under the ODbL). Hours are as mapped; call ahead.

Common questions

Where can I camp around Castle Rock, WA?

1 public campground is on record near Castle Rock. Nearest first, straight-line from town: Seaquest State Park (4.3 miles). 1 books through Washington State Parks reservations.

Is there free camping near Castle Rock, WA?

Not at a developed campground: each of the 1 public campground on record near Castle Rock charges a fee, listed in the table.

Where can I camp with an RV near Castle Rock, WA?

1 campground near Castle Rock takes RVs: Seaquest State Park. Seaquest State Park has hookups. The nearest mapped RV dump station is at Mt. St. Helens RV Park, 2.7 miles from town (OpenStreetMap).

Where can I camp near Castle Rock with drinking water?

Seaquest State Park has potable water on record.

Are there year-round campgrounds near Castle Rock, WA?

Yes: Seaquest State Park is open all year, per the managing agency. The rest are seasonal or have no season on record.

Where is the nearest emergency room to Castle Rock, WA?

Peacehealth St John Medical Center, 1615 Delaware St, Longview, WA, is 9.9 miles from Castle Rock in a straight line and reports emergency services to CMS; phone (360) 414-2000. In an emergency, call 911.

Every campground in the state: camping in Washington ; by agency: State Park campgrounds in Washington ; by county: campgrounds in Cowlitz .