Jerome County, Idaho
3 ZIP codes · Avg score 81/100 · Grade B · Updated 2026-07-19
ZipCheckup grade for Jerome: B.
This ZIP looks solid, with a few items worth a quick check.
Homeowners across Jerome County's 3 ZIP codes live with water safety scores that generally beat state and national averages.
How Jerome County Compares
How Jerome County Compares
Jerome County scores 15 points above the Idaho state average (66/100) and 13 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-07-19
Key Risk Factors
Health risk index: 13.1 (asthma 10.8%, diabetes 12.6%)
Estimated additional annual cost per homeowner: $1,110, driven primarily by energy_code_gap
Infrastructure: 0.39% avg pipe failure probability, 33% of ZIPs at high risk
61.7% of homes built before 1978 (lead paint era)
Violation History (2022–2024)
→ Stable trendEPA violation counts by year across Jerome County water systems. Health-based shown in red, total in blue.
Peak year: 2022 with 1 violation. Past 5 years: 2 total (2 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,110
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
8,562 housing units in Jerome County
Source: U.S. Census Bureau ACS B25034 (Year Structure Built).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Jerome County
Remediation costs are relatively manageable for most homeowners in Jerome County, representing a small fraction of property value.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Health Outcomes vs National Average
CDC PLACES data for Jerome County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Jerome County
8 community water systems serving Jerome County.
- B
- B
- B
- B
- B
- B
Show all 8 water systems
- B
- B
Systems with the most violations in Jerome County
2 water systems with recorded EPA violations.
- B
- B
All ZIP Codes in Jerome County
3 ZIP codes tracked in Jerome County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 83335 | Hazelton | 83 | B | 0 | $230K |
| 2 | 83338 | Jerome | 82 | B | 28 (1 health) | $253K |
| 3 | 83325 | Eden | 77 | B | 6 | $202K |
Recommended Buyer Guides for Jerome County
Four sources - EPA, NSF, FEMA, CDC - drive the match.
- Best Lead Paint Test Kits — 61.7% of homes built before 1978
Overview
Jerome County in Idaho covers 3 ZIP codes with an average Home Safety Score of B (81/100).
2 of 3 ZIP codes have recorded EPA violations. 1 health-based violation have been documented.
← Back to Idaho water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.