The hardest Washington campgrounds to book

Name: How fast Washington campsite cancellations get re-booked
Creator: CampSage

The best Washington campsites are “sold out” months out — but people cancel constantly. The real question isn’t whether a spot opens, it’s how long it lasts before someone else grabs it. We scan every Washington campground on Washington State Parks and recreation.gov several times a day and log the check at which each site frees up — and the check at which it is gone again. Here’s what that reveals.

At Rainbow Falls State Park, half the cancellations we logged were already gone by the time we looked again — within 5.0 hrs. You have hours, not days.

⏱️ Fastest-vanishing cancellations

For half the openings we logged, the site was already re-booked by our next check — this is how long that took. Lower means you have to move faster.

#	Campground	Gone within	Openings measured
1	Rainbow Falls State Park	5.0 hrs	27
2	Fort Townsend State Park	5.1 hrs	24
3	Lewis and Clark State Park (SW Washington)	5.5 hrs	20
4	Birch Bay State Park	6.5 hrs	42
5	Lake Easton State Park	8.2 hrs	136
6	Larrabee State Park	10.0 hrs	26
7	Twin Harbors State Park	10.7 hrs	36
8	Alta Lake State Park	10.9 hrs	69
9	Sun Lakes State Park	11.0 hrs	23
10	Lake Wenatchee State Park	11.0 hrs	170
11	Joemma Beach	12.0 hrs	30
12	Yakima Sportsman State Park	12.0 hrs	64

🔄 Where cancellations happen most (best odds if you watch)

These Washington parks turn over the most — set an alert and your chances are highest here.

#	Campground	Openings/week
1	Dosewallips State Park	24.6
2	Deception Pass State Park	24.2
3	Ocean City State Park	23.9
4	Millersylvania State Park	23.7
5	Cape Disappointment State Park	22.9
6	Grayland Beach State Park	22.6
7	Belfair State Park	22.6
8	Fort Flagler State Park	22.5
9	Pacific Beach State Park	22.4
10	Steamboat Rock State Park	22.1

Methodology. CampSage scans every Washington campground on Washington State Parks and recreation.gov continuously and appends an event each time a site opens or fills. This ranking covers 61.5 days of continuous tracking since August 23, 2026 (32,739 matched open→re-booked events); it updates daily and gets more robust as the record grows. Parks shown have at least 20 measured openings, because a park with a handful ranks on noise rather than on demand. These figures are upper bounds, not stopwatch readings: we observe checks, not moments, and our checks are hours apart, so a site retaken ten minutes after it opened and one that lasted four hours can land in the same bucket. Read “gone within 4 hrs” as “already taken by the time we looked again.” The median is the middle value, so one unusually long-lived opening cannot skew it. Journalists / researchers: happy to share the underlying data or a longer window — about CampSage.

Want to catch one of these? Set a free alert on the live map → and we’ll email you the second a site opens.

Other regions. California · Ontario · British Columbia · Colorado · Oregon

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