Davis County, Utah
14 ZIP codes · Avg score 67/100 · Grade C · Updated 2026-06-03
Covering 14 ZIP codes, Davis County falls in the average tier for tap water safety — violations appear in a meaningful share of areas, and the data suggests quality depends heavily on which specific part of the county a household sits in.
How Davis County Compares
How Davis County Compares
Davis County scores 5 points below the Utah state average (72/100) and 1 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Davis County, Utah
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 10.2 (asthma 11%, diabetes 8.3%)
Estimated additional annual cost per homeowner: $985, driven primarily by flood
Infrastructure: 0.264% avg pipe failure probability, 8% of ZIPs at high risk
38.8% of homes built before 1978 (lead paint era)
Violation History (2021–2024)
→ Stable trendEPA violation counts by year across Davis County water systems. Health-based shown in red, total in blue.
Peak year: 2024 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: $985
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
116,357 housing units in Davis 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 Davis County
Remediation costs are relatively manageable for most homeowners in Davis 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 Davis 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 Davis County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | West Bountiful City Water System | 5,600 | 5 |
| 2 | Bountiful City Water System | 37,500 | 4 |
| 3 | South Davis Water District | 10,565 | 4 |
| 4 | North Salt Lake City Water System | 18,655 | 4 |
| 5 | Farmington City Water System | 27,860 | 4 |
16 total water systems serve Davis County.
All ZIP Codes in Davis County
14 ZIP codes tracked in Davis County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 84040 | Layton | 83 | B | 0 | $486K |
| 2 | 84075 | Syracuse | 83 | B | 0 | $533K |
| 3 | 84054 | North Salt Lake | 79 | B | 2 | $472K |
| 4 | 84041 | Layton | 78 | B | 0 | $396K |
| 5 | 84037 | Kaysville | 77 | B | 3 | $604K |
| 6 | 84087 | Woods Cross | 73 | B | 0 | $489K |
| 7 | 84010 | Bountiful | 72 | B | 2 (1 health) | $486K |
| 8 | 84014 | Centerville | 63 | C | 0 | $492K |
| 9 | 84015 | Clearfield | 63 | C | 0 | $377K |
| 10 | 84025 | Farmington | 55 | C | 1 | $619K |
| 11 | 84016 | Clearfield | 53 | D | 0 | — |
| 12 | 84056 | Hill Afb | 53 | D | 0 | $404K |
| 13 | 84089 | Clearfield | 53 | D | 0 | — |
| 14 | 84315 | Hooper | 53 | D | 0 | $533K |
Recommended Buyer Guides for Davis County
Retailer arrangements don't shape what appears here — the selection logic is independent, filtered against EPA detections and the federal hazard data on file for this county.
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Davis County, Utah
Overview
Davis County in Utah covers 14 ZIP codes with an average Home Safety Score of C (67/100).
4 of 14 ZIP codes have recorded EPA violations. 1 health-based violation 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.