Bolthole Index county-legal census · checked 2026-09-10
1 of Illinois's 102 counties — 1% — set no minimum dwelling size. That is the 12th-largest count of any state. The strongest of them on the Bolthole Index is Cumberland County (67/100). 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 60 counties nationwide → Illinois: no building codes → Illinois: no zoning → Illinois: no codes, no zoning → Illinois: owner-builder → Illinois: rv living → Illinois: tiny homes → Full Illinois profile →
1 of 102 Illinois counties · sorted by Index score
Minimum dwelling size requirements based on county zoning in unincorporated Cumberland County. This conclusion concerns county zoning only; incorporated municipalities may impos…
Cumberland County Comprehensive Plan Draft ↗Every county here has a full profile — water, land prices, hazard safety, seclusion, and the rest of its building rules. See the Illinois state page for all 102 counties ranked, or go back to the national list.
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.