Hope Island Marine State Park - Mason County

Its 9 sites are first-come, first-served (no reservations), camping costs Primitive and water trail sites $12/night (statewide rate), and it is open year-round. Hope Island Marine State Park - Mason County is a State Park campground near Herron Island, Washington.

First-come, first-served

State Park · Herron Island, Washington

Managed by
State Park
Hookups
None

Getting a site

Managed by
State Park
Reservations
None, first-come
Fee
Primitive and water trail sites $12/night (statewide rate)
Entrance fee
None for campers in the park they stay in; Discover Pass $10/day or $45/year for day visits

Source: parks.wa.gov, accessed 2026-09-29

Sites and hookups

Total sites
9
Group sites
1
Hookups
None
  • ✓ Toilets
  • ✕ Potable water
  • ✕ Pets

On site: Toilets. No potable water and no pets.

Source: parks.wa.gov, accessed 2026-09-29

Rules

Stay limit
10 nights in one park within a 30-day period; 90 nights per calendar year in all state parks
Quiet hours
10 p.m. to 6:30 a.m.
Pets
Not allowed

Source: parks.wa.gov, accessed 2026-09-29

Access and cell service

Elevation
59 ft

Cell coverage by carrier (FCC map)

AT&T
No coverage at the campground; 4G LTE mapped about 0.1 mi away, 5G about 0.3 mi away
T-Mobile
4G LTE and 5G (35/3 Mbps)
Verizon
4G LTE
Source: FCC Broadband Data Collection, data as of December 31, 2025

Outdoor coverage each carrier reports to the FCC at this campground's map point, and the nearest mapped coverage within about half a mile. The FCC map only includes 4G LTE at 5/1 Mbps or better and 5G; a weaker signal, a text, or an emergency call may still get through, but don't count on it. These are carrier predictions, not measurements, and can be wrong either way: real service in canyons, under trees, and inside a tent or vehicle is often weaker. 5G speeds are the FCC's 7/1 and 35/3 Mbps tiers. This product uses the FCC Data API but is not endorsed or certified by the FCC.

47.1870, -122.9286 in Mason. Open in OpenStreetMap. Map © OpenStreetMap contributors.

Open in Google Maps Directions

Season and winter services

Hope Island Marine State Park - Mason County is open year-round . In winter: water off, per the managing agency.

Sources: parks.wa.gov, accessed 2026-09-29; epqs.nationalmap.gov, accessed 2026-09-29

Common questions

Do you need a reservation at Hope Island Marine State Park - Mason County?
No. Hope Island Marine State Park - Mason County is first-come, first-served: there is no reservation system, so arrive early to claim an open site.
How much does it cost to camp at Hope Island Marine State Park - Mason County?
Camping at Hope Island Marine State Park - Mason County costs Primitive and water trail sites $12/night (statewide rate).
Is there a separate entrance fee at Hope Island Marine State Park - Mason County?
No, there is no separate entrance fee at Hope Island Marine State Park - Mason County; only the camping fee applies.
How many campsites does Hope Island Marine State Park - Mason County have?
Hope Island Marine State Park - Mason County has 9 campsites, including 1 group site.
Does Hope Island Marine State Park - Mason County have RV hookups?
No. Hope Island Marine State Park - Mason County has no hookups.
Is there drinking water at Hope Island Marine State Park - Mason County?
No. Hope Island Marine State Park - Mason County has no potable water, so bring all the water you need.
Are dogs allowed at Hope Island Marine State Park - Mason County?
No, pets are not allowed at Hope Island Marine State Park - Mason County.
When is Hope Island Marine State Park - Mason County open?
Hope Island Marine State Park - Mason County is open year-round.
Is Hope Island Marine State Park - Mason County open in winter?
Yes, Hope Island Marine State Park - Mason County is open year-round; in winter the water is shut off.
How long can you stay at Hope Island Marine State Park - Mason County?
The stay limit at Hope Island Marine State Park - Mason County is 10 nights in one park within a 30-day period; 90 nights per calendar year in all state parks.
Is there cell service at Hope Island Marine State Park - Mason County?
Yes, outdoors: the FCC's National Broadband Map (data as of December 31, 2025) shows 4G LTE from T-Mobile and Verizon and 5G from T-Mobile at Hope Island Marine State Park - Mason County. It shows none at Hope Island Marine State Park - Mason County from AT&T, though AT&T shows 4G LTE about 0.1 mi away and 5G about 0.3 mi away. The map is carrier-reported and modeled for outdoors, so expect weaker service in canyons, under trees, and inside a tent or vehicle.
Who manages Hope Island Marine State Park - Mason County?
Hope Island Marine State Park - Mason County is managed by the state park system.

Around Hope Island Marine State Park - Mason County

More campgrounds: camping near Herron Island and campgrounds in Mason.

Sources

First-come, first-served Primitive and water trail sites $12/night (statewide rate)
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