COUNTY REPORT MT

Big Horn County, Montana

10 ZIP codes · Home Safety Score unavailable · 0 of 10 tracked ZIP records scored

Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData

Unavailable
0 of 10 tracked ZIP records scored
10
ZIP Codes
$149K
Median Home Value

ZIP Code Risk Map

Water Quality Map: Big Horn County, Montana

Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.

A B C D F

Key Risk Factors

Health risk index: 15.5 (asthma 14.1%, diabetes 15.1%)

Modeled additional annual cost estimate per homeowner: $670, largest modeled factor: Flood

62% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 14.1% (national: 8.9%)
Diabetes 15.1% (national: 10.5%)
Obesity 35.5% (national: 32.4%)

Black markers indicate national averages. Source: CDC PLACES, Census ACS.

Infrastructure Overview

1976
Median Build Year
62%
Pre-1980 Housing
48/100
Infrastructure Stress Indicator
100%
ZIPs with High Infrastructure Stress
Low
Lead Pipe Risk

Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $670

Flood $333/yr
Wildfire $300/yr
Energy Code Gap $270/yr

Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).

Housing Age Distribution

4,227 housing units in Big Horn County

Pre-1940 12%
1940–1959 14%
1960–1979 36%
1980–1999 24%
2000+ 13%

Source: U.S. Census Bureau ACS B25034 (Year Structure Built).

Health Outcomes vs National Average

CDC PLACES data for Big Horn County residents

Asthma 14.1% (US avg: 8.9%)
Diabetes 15.1% (US avg: 11%)
Obesity 35.5% (US avg: 32.4%)

Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.

All ZIP Codes in Big Horn County

10 ZIP codes tracked in Big Horn County.

# ZIP Code City Safety Score Grade Violations Home Value
1 59016 Busby — — $117K
2 59022 Crow Agency — — $86K
3 59025 Decker — — —
4 59031 Garryowen — — $119K
5 59034 Hardin — — $178K
6 59035 Fort Smith — — $176K
7 59050 Lodge Grass — — $149K
8 59066 Pryor — — $121K
9 59075 Saint Xavier — — $211K
10 59089 Wyola — — $216K

Recommended Buyer Guides for Big Horn County

Selection follows a fixed set of rules applied to local records: signals such as PFAS detections, lead action-level exceedances on record, a large share of pre-1978 housing, EPA Radon Zone 1, or a top flood or wildfire risk each add a related guide, and when none applies, general water testing and filtration guides are shown instead.

Overview

Big Horn County in Montana covers 10 tracked ZIP records. No Home Safety Score is published because the required model evidence is incomplete for every tracked record; missing evidence is not treated as zero.

No EPA violation count is attached to the tracked ZIP codes of Big Horn County in our data (no water system is mapped, or the mapping is held back for review), so violation records are not shown here; the local utility may still have EPA records (search EPA ECHO by system name).

← Back to Montana Home Safety Profile

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Frequently Asked Questions

What is the biggest environmental risk in Big Horn County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Big Horn County is flood. Across all modeled risk factors, the estimated average additional annual cost is $670 per homeowner; actual costs vary by home.
How old are homes in Big Horn County?
The median home build year in Big Horn County is 1976. 62% of homes were built before 1980; homes built before 1978 may contain lead-based paint, and older homes may have older plumbing materials.

How to cite this page

APA ZipCheckup. (2026). Big Horn County, Montana Home Safety Profile. https://zipcheckup.com/county/montana/big-horn/
BibTeX
@misc{zipcheckup-county-montana-big-horn,
  author = {{ZipCheckup}},
  title  = {{Big Horn County, Montana Home Safety Profile}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/montana/big-horn/}
}

Page version: October 2026.

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