Population: 1.3 million (and about 2.1 million cattle.)
Population Density: 15.5 per square mile (Rank 15 of JWR’s top 19 states).
Area: 83,437 square miles (rank 13 of 50).
Average car insurance cost: $608/yr. (rank 48 of 50).
Average home insurance cost: $326/yr. (rank 50 of 50).
Average Home Price in Clearwater County: $112,725
Average Home Price in Idaho County: $109,500
Average Home Price in Kootenai County: $112,849
Average Home Price in Latah County: $118,325
Crime Safety Ranking: 9 of 50.
Boston T. Party’s State Firearms Laws Ranking: 97%.
Per capita income: $23,727 (rank 41 of 50).
ACT & SAT Scores Ranking: 15 of 50.
Plusses: Low Very low crime rate. (For example, it ranks second from the bottom in car thefts of the 50 states.) Low property taxes. Inexpensive building permits. Minimally intrusive government. Inexpensive car registration ($20 to $50 per year, plus a one-time-only $15 plate fee.) Low car insurance rates. Low health insurance rates. Extremely low home insurance rates. (An average of $326 per year. Ranks #50 in the country!) The most wilderness area in any of the 48 Continental United States. (Only Alaska has more.) 21.6 million forested acres. Minimal gun laws. Class 3 guns (machineguns short barreled rifles and shotguns, and suppressors) are legal to own after the $200 Federal tax and background check. Open carry of handguns is legal and fairly commonplace. CCW  permits must be issued unless someone has a prior criminal record. (“Non-discretionary.”) No CCW permit is required for concealed carry outside of city limits. Vehicular carry of loaded guns is legal and very common. Automatic knives are legal to own and carry. Minimally regulated home schooling. Low population density. Low elevation portions of the state have a fairly mild climate. Hunting and fishing are excellent in many parts of the state, so there will be no shortage of protein WTSHTF. High ratio of horse ownership, so I anticipate that transportation will be available in the event of a long term TEOTWAWKI . By 2025, Idaho is projected to be the 40th most populous with 1.7 million people. (It is currently the 39th most populous state.) Affordable property: The median home price for all of Idaho is $105,403. One useful web site: Idaho Department of Commerce Community Profiles .
Minuses: Has a relatively high state income tax. Sadly, 63.7% of Idaho’s lands are owned by federal government. (Mostly National Forest and BLM  land.) But at least that provides a “really big back yard” for hunting and cutting firewood. Cold winters at the higher elevations. (Look for property in the low river valleys if you can’t stand snow!) Low wages compared to most coastal states.
JWR’s Combined Retreat Potential Ranking: 1 of 19. (JWR’s top choice!)