Cache County, Utah
18 ZIP codes · Avg score 75/100 · Grade B · Updated 2026-06-03
The 18 water systems serving Cache County show strong compliance with federal drinking water standards.
How Cache County Compares
How Cache County Compares
Cache County scores 3 points above the Utah state average (72/100) and 7 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Cache County, Utah
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 9.6 (asthma 10.5%, diabetes 7.8%)
Estimated additional annual cost per homeowner: $968, driven primarily by energy_code_gap
Infrastructure: 0.336% avg pipe failure probability, 17% of ZIPs at high risk
51.8% of homes built before 1978 (lead paint era)
Violation History (2023–2025)
→ Stable trendEPA violation counts by year across Cache County water systems. Health-based shown in red, total in blue.
Peak year: 2023 with 7 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: $968
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
42,519 housing units in Cache 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 Cache County
Remediation costs are relatively manageable for most homeowners in Cache 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 Cache 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 Cache County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Trenton Town Water System | 490 | 12 |
| 2 | Paradise Town Water System | 1,014 | 12 |
| 3 | Paradise West Subdivision | 27 | 12 |
| 4 | NEWTON TOWN WATER SYSTEM | 810 | 11 |
| 5 | Clarkston Town Water System | 763 | 10 |
18 total water systems serve Cache County.
All ZIP Codes in Cache County
18 ZIP codes tracked in Cache County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 84319 | Hyrum | 83 | B | 0 | $376K |
| 2 | 84322 | Logan | 83 | B | 1 | — |
| 3 | 84323 | Logan | 83 | B | 1 | — |
| 4 | 84327 | Newton | 83 | B | 0 | $343K |
| 5 | 84339 | Wellsville | 83 | B | 0 | $400K |
| 6 | 84341 | Logan | 83 | B | 1 | $404K |
| 7 | 84326 | Millville | 82 | B | 2 | $479K |
| 8 | 84338 | Trenton | 82 | B | 10 (1 health) | $317K |
| 9 | 84305 | Clarkston | 81 | B | 1 | $300K |
| 10 | 84308 | Cornish | 81 | B | 9 (2 health) | $279K |
| 11 | 84321 | Logan | 78 | B | 1 | $360K |
| 12 | 84325 | Mendon | 75 | B | 0 | $549K |
| 13 | 84320 | Lewiston | 72 | B | 0 | $334K |
| 14 | 84328 | Paradise | 63 | C | 12 (1 health) | $518K |
| 15 | 84332 | Providence | 63 | C | 0 | $478K |
| 16 | 84333 | Richmond | 63 | C | 0 | $351K |
| 17 | 84335 | Smithfield | 58 | C | 1 | $404K |
| 18 | 84304 | Cache Junction | 53 | D | 0 | — |
Recommended Buyer Guides for Cache County
Below: editorial picks, no sponsored placements.
- Best Water Filters for Lead — Lead above EPA action level in 1 ZIP code
- Best Lead Paint Test Kits — 51.8% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Cache County, Utah
Overview
Cache County in Utah covers 18 ZIP codes with an average Home Safety Score of B (75/100).
10 of 18 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.