Salt Lake County, Utah
72 ZIP codes · Avg score 81/100 · Grade B · Updated 2026-06-03
Salt Lake County's tap water quality puts it in the upper tier nationally; the 72 ZIP codes here record few health-based violations.
How Salt Lake County Compares
How Salt Lake County Compares
Salt Lake County scores 9 points above the Utah state average (72/100) and 13 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Salt Lake County, Utah
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 10.1 (asthma 11%, diabetes 8.5%)
Estimated additional annual cost per homeowner: $893, driven primarily by wildfire
Infrastructure: 0.312% avg pipe failure probability, 14% of ZIPs at high risk
Violation History (2022–2025)
→ Stable trendEPA violation counts by year across Salt Lake County water systems. Health-based shown in red, total in blue.
Peak year: 2025 with 56 violations. Past 5 years: 67 total (67 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: $893
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Salt Lake County
Remediation costs are relatively manageable for most homeowners in Salt Lake 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 Salt Lake 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 Salt Lake County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | SANDY CITY WATER SYSTEM | 99,750 | 76 |
| 2 | University of Utah | 57,080 | 72 |
| 3 | Copperton Improvement District | 990 | 72 |
| 4 | M & J Trailer Home Community | 27 | 72 |
| 5 | White City Wid | 15,800 | 48 |
28 total water systems serve Salt Lake County.
All ZIP Codes in Salt Lake County
72 ZIP codes tracked in Salt Lake County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 84044 | Magna | 83 | B | 0 | $341K |
| 2 | 84081 | West Jordan | 83 | B | 1 | $487K |
| 3 | 84084 | West Jordan | 83 | B | 1 | $432K |
| 4 | 84088 | West Jordan | 83 | B | 1 | $443K |
| 5 | 84101 | Salt Lake City | 83 | B | 0 | $541K |
| 6 | 84102 | Salt Lake City | 83 | B | 0 | $487K |
| 7 | 84103 | Salt Lake City | 83 | B | 0 | $711K |
| 8 | 84109 | Salt Lake City | 83 | B | 0 | $679K |
| 9 | 84110 | Salt Lake City | 83 | B | 0 | — |
| 10 | 84112 | Salt Lake City | 83 | B | 0 | — |
| 11 | 84113 | Salt Lake City | 83 | B | 0 | — |
| 12 | 84114 | Salt Lake City | 83 | B | 0 | — |
| 13 | 84115 | Salt Lake City | 83 | B | 0 | $396K |
| 14 | 84118 | Salt Lake City | 83 | B | 0 | $349K |
| 15 | 84119 | Salt Lake City | 83 | B | 0 | $342K |
| 16 | 84120 | Salt Lake City | 83 | B | 0 | $371K |
| 17 | 84122 | Salt Lake City | 83 | B | 0 | — |
| 18 | 84124 | Salt Lake City | 83 | B | 0 | $704K |
| 19 | 84125 | Salt Lake City | 83 | B | 0 | — |
| 20 | 84126 | Salt Lake City | 83 | B | 0 | — |
| 21 | 84127 | Salt Lake City | 83 | B | 0 | — |
| 22 | 84128 | Salt Lake City | 83 | B | 0 | $405K |
| 23 | 84129 | Salt Lake City | 83 | B | 0 | $399K |
| 24 | 84130 | Salt Lake City | 83 | B | 0 | — |
| 25 | 84131 | Salt Lake City | 83 | B | 0 | — |
| 26 | 84132 | Salt Lake City | 83 | B | 0 | — |
| 27 | 84133 | Salt Lake City | 83 | B | 0 | — |
| 28 | 84134 | Salt Lake City | 83 | B | 0 | — |
| 29 | 84136 | Salt Lake City | 83 | B | 0 | — |
| 30 | 84138 | Salt Lake City | 83 | B | 0 | — |
| 31 | 84139 | Salt Lake City | 83 | B | 0 | — |
| 32 | 84141 | Salt Lake City | 83 | B | 0 | — |
| 33 | 84143 | Salt Lake City | 83 | B | 0 | — |
| 34 | 84144 | Salt Lake City | 83 | B | 0 | — |
| 35 | 84145 | Salt Lake City | 83 | B | 0 | — |
| 36 | 84147 | Salt Lake City | 83 | B | 0 | — |
| 37 | 84148 | Salt Lake City | 83 | B | 0 | — |
| 38 | 84150 | Salt Lake City | 83 | B | 0 | — |
| 39 | 84151 | Salt Lake City | 83 | B | 0 | — |
| 40 | 84152 | Salt Lake City | 83 | B | 0 | — |
| 41 | 84157 | Salt Lake City | 83 | B | 0 | — |
| 42 | 84158 | Salt Lake City | 83 | B | 0 | — |
| 43 | 84165 | Salt Lake City | 83 | B | 0 | — |
| 44 | 84170 | Salt Lake City | 83 | B | 0 | — |
| 45 | 84171 | Salt Lake City | 83 | B | 0 | — |
| 46 | 84180 | Salt Lake City | 83 | B | 0 | — |
| 47 | 84184 | Salt Lake City | 83 | B | 0 | — |
| 48 | 84189 | Salt Lake City | 83 | B | 0 | — |
| 49 | 84190 | Salt Lake City | 83 | B | 0 | — |
| 50 | 84199 | Salt Lake City | 83 | B | 0 | — |
| 51 | 84070 | Sandy | 82 | B | 12 (1 health) | $429K |
| 52 | 84090 | Sandy | 82 | B | 12 (1 health) | — |
| 53 | 84091 | Sandy | 82 | B | 12 (1 health) | — |
| 54 | 84092 | Sandy | 82 | B | 12 (1 health) | $706K |
| 55 | 84093 | Sandy | 82 | B | 12 (1 health) | $644K |
| 56 | 84094 | Sandy | 82 | B | 12 (1 health) | $475K |
| 57 | 84096 | Herriman | 81 | B | 6 (2 health) | $541K |
| 58 | 84065 | Riverton | 78 | B | 0 | $595K |
| 59 | 84104 | Salt Lake City | 78 | B | 0 | $318K |
| 60 | 84105 | Salt Lake City | 78 | B | 0 | $632K |
| 61 | 84106 | Salt Lake City | 78 | B | 0 | $529K |
| 62 | 84108 | Salt Lake City | 78 | B | 0 | $760K |
| 63 | 84111 | Salt Lake City | 78 | B | 0 | $423K |
| 64 | 84117 | Salt Lake City | 78 | B | 0 | $581K |
| 65 | 84121 | Salt Lake City | 78 | B | 0 | $615K |
| 66 | 84123 | Salt Lake City | 78 | B | 0 | $437K |
| 67 | 84009 | South Jordan | 77 | B | 4 | $570K |
| 68 | 84095 | South Jordan | 77 | B | 4 | $670K |
| 69 | 84020 | Draper | 75 | B | 4 | $726K |
| 70 | 84107 | Salt Lake City | 73 | B | 0 | $426K |
| 71 | 84116 | Salt Lake City | 73 | B | 0 | $335K |
| 72 | 84006 | Bingham Canyon | 53 | D | 0 | $375K |
Recommended Buyer Guides for Salt Lake 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 Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best HEPA Air Purifiers for Wildfire Smoke — Wildfire is the top compound risk factor
Deep Dive Reports
Detailed analysis for Salt Lake County, Utah
Overview
Salt Lake County in Utah covers 72 ZIP codes with an average Home Safety Score of B (81/100).
13 of 72 ZIP codes have recorded EPA violations. 8 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.