COUNTY REPORT ID

Lemhi County, Idaho

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
$278K
Median Home Value

ZIP Code Risk Map

Water Quality Map: Lemhi County, Idaho

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: 14.2 (asthma 10.8%, diabetes 12.7%)

Modeled additional annual cost estimate per homeowner: $773, largest modeled factor: Energy Code Gap

53% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 10.8% (national: 8.9%)
Diabetes 12.7% (national: 10.5%)
Obesity 30.4% (national: 32.4%)

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

Infrastructure Overview

1984
Median Build Year
53%
Pre-1980 Housing
42/100
Infrastructure Stress Indicator
78%
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: $773

Energy Code Gap $370/yr
Wildfire $300/yr
Flood $280/yr

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

Housing Age Distribution

4,565 housing units in Lemhi County

Pre-1940 10%
1940–1959 9%
1960–1979 34%
1980–1999 30%
2000+ 17%

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

Health Outcomes vs National Average

CDC PLACES data for Lemhi County residents

Asthma 10.8% (US avg: 8.9%)
Diabetes 12.7% (US avg: 11%)
Obesity 30.4% (US avg: 32.4%)

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

All ZIP Codes in Lemhi County

10 ZIP codes tracked in Lemhi County.

# ZIP Code City Safety Score Grade Violations Home Value
1 83229 Cobalt — — —
2 83253 May — — —
3 83462 Carmen — — $367K
4 83463 Gibbonsville — — $263K
5 83464 Leadore — — $165K
6 83465 Lemhi — — $238K
7 83466 North Fork — — $384K
8 83467 Salmon — — $278K
9 83468 Tendoy — — $349K
10 83469 Shoup — — —

Recommended Buyer Guides for Lemhi 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

Lemhi County in Idaho 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 Lemhi 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 Idaho 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 Lemhi County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Lemhi County is energy code gap. Across all modeled risk factors, the estimated average additional annual cost is $773 per homeowner; actual costs vary by home.
How old are homes in Lemhi County?
The median home build year in Lemhi County is 1984. 53% 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). Lemhi County, Idaho Home Safety Profile. https://zipcheckup.com/county/idaho/lemhi/
BibTeX
@misc{zipcheckup-county-idaho-lemhi,
  author = {{ZipCheckup}},
  title  = {{Lemhi County, Idaho Home Safety Profile}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/idaho/lemhi/}
}

Page version: October 2026.

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