Bolthole Index county-legal census · checked 2026-11-12
2 of Idaho's 44 counties — 5% — set no minimum dwelling size. That is the 33rd-largest count of any state. The strongest of them on the Bolthole Index is Bonner County (72/100). Every entry below cites the county’s own official source.
Rules change, and cities inside these counties set their own — treat this as a verified starting point, not legal advice. All 626 counties nationwide → Idaho: no building codes → Idaho: owner-builder → Idaho: rv living → Idaho: tiny homes → Full Idaho profile →
2 of 44 Idaho counties · sorted by Index score
Minimum dwelling or house size under Bonner County land use codes, unincorporated Bonner County Statement comes from the county's adopted Comprehensive Plan Housing component, a…
Bonner County Comprehensive Plan Housing Component (Adopted Update, v.9 07.26.23) ↗County zoning in unincorporated Idaho County outside incorporated city limits and city areas of impact. This is an absence of a county zoning minimum dwelling-size requirement, …
Building/Living in Idaho County ↗Every county here has a full profile — water, land prices, hazard safety, seclusion, and the rest of its building rules. See the Idaho state page for all 44 counties ranked, or go back to the national list.
Off-grid gear
Building on land in one of these Idaho counties? The kit we'd start with:
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General guidance, not legal advice. Off-grid, building, and land-use rules are often set at the county level and change often. Verify with your county and state before acting. Data reviewed 2026-06-26.
