Bolthole Index

Iowa · Off-grid & homestead potential

Union County

70Index Score / 100
#7 of 99 in Iowa

Union County scores 70/100 on the Bolthole Index, a strong county profile. Its strengths are low administrative friction for a quiet rural property and manageable long-term carry cost.

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Union County in Iowa

70
County map
Union County highlighted among the Iowa counties · colored by Index score

How Union County scores

Seclusion63100% ev.
Self-Sufficiency51100% ev.
Admin Boringness8190% ev.
Durability49100% ev.
Property Autonomy51100% ev.
Carry Cost67100% ev.

Evidence strength: 98%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$164kTypical home
1.8%Property tax
$5,970Land / acre
36.6"Annual rain
6.7% of yrsSevere drought
6.2 / yr (+5.4)Mid-century 100°F days
17.3 daysMid-century dry spell
2" (+9.5%)Mid-century 1-day rain
1.77×Wildfire change factor
100%Forward climate coverage
$1,903Home insurance / yr
5.5% / yrInsurance growth
1.59%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
11,487People within 30 min
1,048,820People within 2 hr
14,538Radius comparison (15 mi)
28.1People / sq mi
0.2%Federal land
92.6%Land at 15% slope or less
0%Septic soil without severe limits
0 acWorkable land screen
14.5%Wooded land
39.2 tonsBiomass / forest ac
49.7°FAvg temp

Scout Union County

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Property hunt

Find land. Bring the promising ones back.

Search live inventory elsewhere, then cost and vet each candidate here. No copied listings, account, or paid data feed.

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A planning estimate, not a valuation or contractor quote. The USDA benchmark includes farm land and buildings; it is context, not a parcel comp.

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Building & land-use rules in Union County

What it takes to build here — permits, zoning, and septic — scouted from Union County’s own official sources.

  • Building permitNot required

    Union County lists no building/planning department and its ordinance index contains no county residential building code, consistent with Iowa having no statewide residential code unless locally adopted. State overlay (IA): statewide thermal-efficiency/energy standards apply to all construction (Iowa Code 103A.10), and state electrical permits/inspections apply statewide; the building code itself is local-adoption-only.

    Union County, Iowa - Ordinances
  • County zoningNone county-wide

    The county ordinance index and department list include no county zoning ordinance or planning/zoning department.

    Union County, Iowa - Ordinances
  • Septic permittingUnion County Environmental Health / Board of Health

    The county Environmental Health office issues septic permits under the Union County Board of Health rules and Iowa Administrative Code 567 Chapter 69.

    Union County Environmental Health
  • Owner-builderNot published

    Not published on an official source — confirm with the county.

  • Building inspectionsNot published

    Not published on an official source — confirm with the county.

  • Occupancy certificateNot published

    Not published on an official source — confirm with the county.

  • Septic permitNot published

    Not published on an official source — confirm with the county.

  • Septic inspectionNot published

    Not published on an official source — confirm with the county.

  • Off-grid sanitationNot published

    Not published on an official source — confirm with the county.

Always confirm current rules with Union County Environmental Health before you buy or build. Scouted Jul 2026 from official county sources.

Living off-grid in Union County, Iowa

Is Union County a good place to live off-grid or homestead?

Union County scores 70/100 on the Bolthole Index, a strong county profile. Its strengths: low administrative friction for a quiet rural property and manageable long-term carry cost.

Do you need a building permit in Union County, Iowa?

Union County does not require a county building permit for a home in unincorporated areas, and it has no county-wide zoning. Onsite septic is permitted by Union County Environmental Health / Board of Health. Rules change and cities within the county differ — always confirm with the county before you buy or build.

How much does land cost in Union County, Iowa?

Land in Union County runs about $5,970 per acre, based on the latest county data.

What is the water situation in Union County?

Union County gets about 36.6" of rain a year, with severe drought in roughly 6.7% of years.

How remote is Union County?

A representative private-land location has about 11,487 people within a 30-minute drive and 1,048,820 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 Union County means bringing your own water and power. The kit we’d start with:

WaterCrystal QuestFilter any source — well, rain, or creek — to drinking-clean.PowerBluettiSolar generators and home battery backup for living off the grid.

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How Union compares in Iowa

Compare side-by-side →See all 99 Iowa counties ranked →