Seattle — Washington State
Nothing inside the city, and five good options within three hours of it.
Seattle Guide →beExploring / Seattle
There is no camping in Seattle. The city has more than 500 parks and not one campground in any of them, and the nearest developed sites are 45 minutes east on I-90. That is not a gap in the city so much as the reason people live here: the Cascades start close enough that camping is a Friday-evening drive rather than a holiday.
This page sorts the realistic options by what kind of trip you want, from forest sites in the Icicle Creek valley to lakefront state parks on the Columbia. Every one is within about three hours of downtown, and each links through to the destination that owns the campground list and the individual site pages.
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Closest real camping to the city
The Icicle Creek valley outside Leavenworth, about two hours east on US-2
Best for swimming and boats
Columbia River state parks near Wenatchee, with hookups, showers, and boat launches
Best for hiking out the tent door
North Cascades sites along SR-20 above Winthrop
Best with an RV
The Lake Chelan RV parks, which have the full-hookup inventory the forest sites lack
Best if you did not book anything
Dispersed camping on forest roads, free and first-come, but you need to arrive prepared
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Ordered roughly by drive time from the city. All five are a realistic weekend from Seattle; the first two are doable as a Friday-night departure.

Classic Pacific Northwest forest camping in the Icicle Creek valley outside Leavenworth: tall conifers, a river running past the sites, and trailheads for the Enchantments within a few miles. Mostly first-come or partially reservable, vault toilets, no hookups. This is the closest genuinely good camping to Seattle and it fills accordingly on summer weekends.

Columbia River state parks around Wenatchee, including Daroga and Lincoln Rock. Full hookups, showers, boat launches, playgrounds, and swimming, which makes these the easiest option with kids or a trailer. Reservable through Washington State Parks, and worth booking well ahead for July and August.

Forest Service campgrounds along the North Cascades Highway above Winthrop: Klipchuck, Lone Fir, Early Winters, and others, all with alpine trailheads within minutes. The most scenic camping in the state and the most seasonal, since SR-20 over Washington Pass closes with the first heavy snow and does not reopen until spring.

Forest campgrounds rarely have hookups, so an RV trip means state parks or commercial RV parks. Lake Chelan has the deepest inventory of both, with lakefront sites, full hookups, showers, and laundry. The dry side of the mountains also means a far better chance of sun than anywhere within an hour of Seattle.

Free camping on Forest Service roads with no facilities, no water, and no reservation. The fallback when every campground within three hours is booked, which is most summer Saturdays. You need to be fully self-sufficient, pack out everything, and check the current burn ban before planning a fire.
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Book state parks the day the window opens, nine months out for Washington State Parks. Daroga and Lincoln Rock summer weekends go within hours.
Cross the mountains for weather. Leavenworth, Wenatchee, and Chelan sit in the rain shadow and get a real summer, while everything within an hour of Seattle stays grey well into June.
Check the burn ban before you load firewood. Eastern Washington campfire restrictions arrive early and stay late in a dry year, and they change mid-season.
Leave Seattle before 2pm on a Friday or after 7pm. US-2 and I-90 both back up badly through the middle of a summer Friday afternoon.
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Assuming you can find something on a Saturday. Every reservable site within three hours of Seattle is gone by Wednesday in July and August. Book ahead or plan on dispersed.
Driving SR-20 to the Methow in shoulder season without checking. Washington Pass closes for the winter, usually November to April, and the detour is several hours.
Counting on water at forest campgrounds. Many have none, and some shut their water off entirely late in the season. Carry your own.
Booking a forest campground with a large RV. Most Icicle Creek and SR-20 sites have short, tight loops and no hookups. State parks and RV parks are the option.
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Seattle Guide
Full city overview
Where to Stay in Seattle
If you would rather have a room
Day Trips from Seattle
The same country, without the tent
Hiking Near Seattle
City trails and Cascade day hikes
Seattle Conditions
Forecast, air quality, and mountain access
WA Campfire Restrictions
Statewide burn bans and fire status
beExploring / Seattle