Sevier County, Utah
12 ZIP codes · Avg score 60/100 · Grade C · Updated 2026-06-03
Water systems across Sevier County's 12 ZIP codes produce average compliance results overall — pockets with documented violations exist, and the variation between areas makes ZIP-level lookup the most useful tool for residents here.
How Sevier County Compares
How Sevier County Compares
Sevier County scores 12 points below the Utah state average (72/100) and 8 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Sevier County, Utah
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.4 (asthma 11.1%, diabetes 10.5%)
Estimated additional annual cost per homeowner: $1,075, driven primarily by energy_code_gap
Infrastructure: 0.393% avg pipe failure probability, 42% of ZIPs at high risk
66.6% of homes built before 1978 (lead paint era)
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: $1,075
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
8,598 housing units in Sevier 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 Sevier County
Remediation costs are relatively manageable for most homeowners in Sevier 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 Sevier County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Sevier County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Koosharem | 400 | 12 |
| 2 | Joseph Town | 350 | 5 |
| 3 | Cove Special Service District | 115 | 5 |
| 4 | Sigurd Town Water System | 445 | 4 |
| 5 | Aurora City | 1,013 | 2 |
16 total water systems serve Sevier County.
All ZIP Codes in Sevier County
12 ZIP codes tracked in Sevier County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 84701 | Richfield | 70 | B | 0 | $297K |
| 2 | 84711 | Annabella | 70 | B | 0 | $286K |
| 3 | 84739 | Joseph | 68 | C | 5 | $237K |
| 4 | 84754 | Monroe | 68 | C | 1 | $272K |
| 5 | 84724 | Elsinore | 66 | C | 1 | $209K |
| 6 | 84730 | Glenwood | 66 | C | 0 | $331K |
| 7 | 84652 | Redmond | 64 | C | 2 | $269K |
| 8 | 84654 | Salina | 62 | C | 1 | $258K |
| 9 | 84620 | Aurora | 54 | D | 2 | $263K |
| 10 | 84744 | Koosharem | 50 | D | 12 | $254K |
| 11 | 84657 | Sigurd | 47 | D | 4 | $274K |
| 12 | 84766 | Sevier | 40 | D | 0 | — |
Recommended Buyer Guides for Sevier County
Editorial methodology pairs each documented risk in this county with the buyer category that addresses it, drawing on water-quality detections, housing-stock lead exposure, EPA Radon Zone designation, and FEMA flood and wildfire ratings. NSF-certified options surface where applicable, and products that match the specific contaminant take priority.
- Best Lead Paint Test Kits — 66.6% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Deep Dive Reports
Detailed analysis for Sevier County, Utah
Overview
Sevier County in Utah covers 12 ZIP codes with an average Home Safety Score of C (60/100).
8 of 12 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← Back to Utah 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.