Iron County, Utah
10 ZIP codes · Avg score 70/100 · Grade B · Updated 2026-06-03
Iron County maintains reliable drinking water quality across all 10 of its tracked ZIP codes.
How Iron County Compares
How Iron County Compares
Iron County scores 2 points below the Utah state average (72/100) and 2 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Iron County, Utah
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 11.3 (asthma 11%, diabetes 9.4%)
Estimated additional annual cost per homeowner: $824, driven primarily by energy_code_gap
Infrastructure: 0.33% avg pipe failure probability, 11% of ZIPs at high risk
49.2% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
→ Stable trendEPA violation counts by year across Iron County water systems. Health-based shown in red, total in blue.
Peak year: 2021 with 6 violations. Past 5 years: 10 total (10 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: $824
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
21,971 housing units in Iron 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 Iron County
Remediation costs are relatively manageable for most homeowners in Iron 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 Iron 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 Iron County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Parowan City Water System | 3,000 | 17 |
| 2 | Brian Head Town Water System | 1,038 | 17 |
| 3 | Harmony Farms Water Users | 314 | 17 |
| 4 | Central Iron County Wcd | 3,995 | 16 |
| 5 | SUMMIT CULINARY WATER | 185 | 11 |
18 total water systems serve Iron County.
All ZIP Codes in Iron County
10 ZIP codes tracked in Iron County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 84760 | Paragonah | 83 | B | 0 | $268K |
| 2 | 84720 | Cedar City | 79 | B | 5 (1 health) | $357K |
| 3 | 84772 | Summit | 77 | B | 11 (2 health) | $241K |
| 4 | 84742 | Kanarraville | 76 | B | 6 | $494K |
| 5 | 84721 | Cedar City | 74 | B | 5 (1 health) | $345K |
| 6 | 84756 | Newcastle | 72 | B | 0 | $219K |
| 7 | 84714 | Beryl | 67 | C | 7 | $199K |
| 8 | 84761 | Parowan | 65 | C | 17 | $313K |
| 9 | 84719 | Brian Head | 53 | D | 0 | $309K |
| 10 | 84753 | Modena | 53 | D | 0 | — |
Recommended Buyer Guides for Iron County
Where county records show a lead exceedance or pre-1978 housing concentration, lead-specific filters and test kits move toward the top of the list.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Iron County, Utah
Overview
Iron County in Utah covers 10 ZIP codes with an average Home Safety Score of B (70/100).
6 of 10 ZIP codes have recorded EPA violations. 4 health-based violations have been documented.
← 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.