
Free with WA Discover Pass. Just a big gravel lot. Good cell signal.
Dump Station: No
Water: No
Quincy, Washington
$0 per night
Official Website

Behind fairground and racetrack. Good cell signal. Race cars practicing during the day could be loud. Last resort when state parks are all booked and cell signal is required.
Dump Station: Yes
Water: Yes
Monroe, Washington
$25 per night
Official Website

Free with Washington Discover Pass. Nice little trail. Cell signal was usable. No trash service. Another camper had items stolen from his site. Heavy shade in most sites.
Dump Station: No
Water: No
Port Angeles, Washington
$0 per night
Official Website

Good cell signal. Beautiful and secluded feeling on the east side of Olympic Peninsula. FCFS. Heavy shade makes solar impossible but the trees are gorgeous.
Dump Station: No
Water: No
Brinnon, Washington
$18 per night
Official Website

Semi-parking lot style campground on a bluff above the ocean. Beautiful beach to walk. FCFS system is a little different. There is a large bulletin board in the middle of the campground with all the sites listed. Pick an un-claimed site, pay with the envelope and put your receipt on the board under your site number. Sites are $20 per night. Verizon and ATT were not good enough for streaming but T-Mobile worked well. Bring supplies, the nearby stores are small grocers with limited selections.
Dump Station: No
Water: No
South Fork, Washington
$20 per night
Official Website

Quiet campground on Kachess Lake off of I-90. This campground is reservable a few days out but sites that are not booked are available to walk-ins. There were a couple of signs at the main gate that say no walk ins allowed but this was contradicted by recreation.gov and the camp host who was very welcoming and helped us pick a good site. The sites closest to the lake had cell services. Sites further back in the trees did not. We were on the Theta loop in site 131 and had excellent signal good enough for streaming.
Dump Station: No
Water: No
Cle Elum, Washington
$24 per night
Official Website

Pleasant state park campground close to the Canadian border. Good cell signal. Most sites have heavy shade. Prices from $27 for dry camping. Most of Washington State parks are expensive relative to amenities and book up during weekends several weeks in advance.
Dump Station: Yes
Water: Yes
Blaine, Washington
$27 per night
Official Website