Most government lands allow dispersed camping. Developed areas, even if it is just a fire ring, dumpster or pit toilet cost because they require maintaining. If you are a vet most of those are 1/2 price. I suggest you use some of the sites above and for the best bang for your buck if you are over 62 years old get a lifetime National Park pass, even if you are not get an $80 annual pass and stay on public lands out side the parks to sleep and use all they have to offer during the day. Almost all have trash dumpsters, water, dump stations, picnic areas, restrooms, lodges with WiFi and AC in front desk areas, ours even has free hot showers and electrical outlets in the parking lot. The worst thing about the parks is that several are remote and things especially food and fuel are very expensive. Go inland from the coast to lakes and rivers in the more remote areas and stay away from populated areas.