Here in CO, it's very crowded anywhere within a couple hours of the front range. Forget about first come first serve camping if you want to head out on Friday for a quick weekend, and you need to book reservable sites 6 months in advance. There are a lot of people who moved here from out of State (like California), but also out of state visitors (like from Texas).
For this reason we don't do a lot of camping just for weekends anymore. Instead we save up our time and head to WY (spouse is from there). Out there, there's still tons of areas there that really allow you to camp. But for us, it's 6-7 hours. We own land up there around 90 minutes from Jackson, and once we have the finances lined up, are building a small house on it... both to stay in, but also as a place we can leave our camper during the summer so we can make the trip faster. Area doesn't permit you to live in your camper on your land unless you're in the middle of building a house.
There's pluses and minuses to living full time in a place like that though. Pluses are obvious, few people, beautiful scenery, ability to enjoy outdoor recreation without it being overrun. Minuses are the weather when it's not summer, lack of amenities we grow used to (like high speed internet, reliable phone signal, abundant grocery stores, etc), and lack of healthcare options. The high speed internet is the reason we don't live there now, we both need it to do our jobs remotely.