Illinois · Off-grid & homestead potential
Rock Island County scores 52/100 on the Bolthole Index, a solid county profile. Its strengths are mixed durability signals and workable self-sufficiency basics (37.7″/yr rainfall). The trade-offs: about 211,298 people within a 30-minute drive.
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Evidence strength: 100%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →
Scout Rock Island County
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Property hunt
Search live inventory elsewhere, then cost and vet each candidate here. No copied listings, account, or paid data feed.
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Working estimate
A planning estimate, not a valuation or contractor quote. The USDA benchmark includes farm land and buildings; it is context, not a parcel comp.
Before an offer
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What it takes to build here — permits, zoning, and septic — scouted from Rock Island County’s own official sources.
The Rock Island County Zoning and Building Safety Department enforces the county building codes and requires a building permit prior to new or altered construction in unincorporated areas; work begun without a permit is charged double.
Rock Island County Zoning & Building Safety ↗Rock Island County administers zoning through its Zoning & Building Safety Department, including setback and stormwater approvals for unincorporated properties.
Rock Island County Zoning & Building Safety ↗The Rock Island County Health Department permits and inspects private sewage disposal (septic) systems under its Private Sewage Disposal Ordinance, implementing Illinois (IDPH) private sewage code.
Rock Island County Health Department ↗Rock Island County allows a homeowner to do the work on their own home and to draw their own plans; a permit is still required.
Rock Island County Zoning & Building Safety - Contractor Information ↗Not published on an official source — confirm with the county.
Not published on an official source — confirm with the county.
Not published on an official source — confirm with the county.
Not published on an official source — confirm with the county.
Not published on an official source — confirm with the county.
Always confirm current rules with Rock Island County Zoning & Building Safety Department before you buy or build. Scouted Jul 2026 from official county sources.
Rock Island County scores 52/100 on the Bolthole Index, a solid county profile. Its strengths: mixed durability signals and workable self-sufficiency basics (37.7″/yr rainfall). Watch-outs: about 211,298 people within a 30-minute drive.
Rock Island County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Rock Island County Health Department - Private Sewage Disposal. Owner-builders may act as their own contractor to build their home. Rules change and cities within the county differ — always confirm with the county before you buy or build.
Land in Rock Island County runs about $9,125 per acre, based on the latest county data.
Rock Island County gets about 37.7" of rain a year, with severe drought in roughly 4% of years.
A representative private-land location has about 211,298 people within a 30-minute drive and 2,923,265 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.
Off-grid gear
Going off-grid in Rock Island County means bringing your own water and power. The kit we’d start with:
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