Dallas County, Texas
174 ZIP codes · Avg score 93/100 · Grade A · Updated 2026-06-03
In current tracking cycles, Dallas County — spanning 174 ZIP codes — records above-average water quality outcomes; the county's compliance history over recent years shows few departures from federal standards.
How Dallas County Compares
How Dallas County Compares
Dallas County scores 11 points above the Texas state average (82/100) and 25 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Dallas County, Texas
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 11.8 (asthma 9.8%, diabetes 12.5%)
Estimated additional annual cost per homeowner: $1,084, driven primarily by flood
Infrastructure: 0.3% avg pipe failure probability, 7% of ZIPs at high risk
Violation History (2022–2024)
→ Stable trendEPA violation counts by year across Dallas County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 147 violations. Past 5 years: 215 total (215 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: $1,084
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 Dallas County
Remediation costs are relatively manageable for most homeowners in Dallas 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 Dallas 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 Dallas County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Dallas Water Utility | 1,356,479 | 442 |
| 2 | City of University Park | 25,278 | 351 |
| 3 | Kaufman County Fwsd 1a | 11,268 | 351 |
| 4 | Town of Highland Park | 8,959 | 351 |
| 5 | Kaufman County Fwsd 4a | 7,317 | 351 |
46 total water systems serve Dallas County.
All ZIP Codes in Dallas County
174 ZIP codes tracked in Dallas County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 75014 | Irving | 99 | A | 0 | — |
| 2 | 75015 | Irving | 99 | A | 0 | — |
| 3 | 75016 | Irving | 99 | A | 0 | — |
| 4 | 75017 | Irving | 99 | A | 0 | — |
| 5 | 75030 | Rowlett | 99 | A | 0 | — |
| 6 | 75037 | Irving | 99 | A | 0 | — |
| 7 | 75039 | Irving | 99 | A | 0 | $568K |
| 8 | 75099 | Coppell | 99 | A | 1 | — |
| 9 | 75106 | Cedar Hill | 99 | A | 0 | — |
| 10 | 75123 | Desoto | 98 | A | 3 | — |
| 11 | 75222 | Dallas | 98 | A | 3 | — |
| 12 | 75242 | Dallas | 98 | A | 3 | — |
| 13 | 75245 | Dallas | 98 | A | 3 | — |
| 14 | 75249 | Dallas | 98 | A | 3 | $259K |
| 15 | 75250 | Dallas | 98 | A | 3 | — |
| 16 | 75251 | Dallas | 98 | A | 3 | — |
| 17 | 75260 | Dallas | 98 | A | 3 | — |
| 18 | 75261 | Dallas | 98 | A | 3 | — |
| 19 | 75262 | Dallas | 98 | A | 3 | — |
| 20 | 75263 | Dallas | 98 | A | 3 | — |
| 21 | 75264 | Dallas | 98 | A | 3 | — |
| 22 | 75266 | Dallas | 98 | A | 3 | — |
| 23 | 75267 | Dallas | 98 | A | 3 | — |
| 24 | 75270 | Dallas | 98 | A | 3 | — |
| 25 | 75277 | Dallas | 98 | A | 3 | — |
| 26 | 75283 | Dallas | 98 | A | 3 | — |
| 27 | 75284 | Dallas | 98 | A | 3 | — |
| 28 | 75285 | Dallas | 98 | A | 3 | — |
| 29 | 75286 | Dallas | 98 | A | 3 | — |
| 30 | 75301 | Dallas | 98 | A | 3 | — |
| 31 | 75310 | Dallas | 98 | A | 3 | — |
| 32 | 75312 | Dallas | 98 | A | 3 | — |
| 33 | 75313 | Dallas | 98 | A | 3 | — |
| 34 | 75315 | Dallas | 98 | A | 3 | — |
| 35 | 75320 | Dallas | 98 | A | 3 | — |
| 36 | 75323 | Dallas | 98 | A | 3 | — |
| 37 | 75326 | Dallas | 98 | A | 3 | — |
| 38 | 75334 | Dallas | 98 | A | 3 | — |
| 39 | 75336 | Dallas | 98 | A | 3 | — |
| 40 | 75339 | Dallas | 98 | A | 3 | — |
| 41 | 75340 | Dallas | 98 | A | 3 | — |
| 42 | 75342 | Dallas | 98 | A | 3 | — |
| 43 | 75343 | Dallas | 98 | A | 3 | — |
| 44 | 75344 | Dallas | 98 | A | 3 | — |
| 45 | 75353 | Dallas | 98 | A | 3 | — |
| 46 | 75355 | Dallas | 98 | A | 3 | — |
| 47 | 75356 | Dallas | 98 | A | 3 | — |
| 48 | 75357 | Dallas | 98 | A | 3 | — |
| 49 | 75358 | Dallas | 98 | A | 3 | — |
| 50 | 75359 | Dallas | 98 | A | 3 | — |
| 51 | 75360 | Dallas | 98 | A | 3 | — |
| 52 | 75364 | Dallas | 98 | A | 3 | — |
| 53 | 75367 | Dallas | 98 | A | 3 | — |
| 54 | 75368 | Dallas | 98 | A | 3 | — |
| 55 | 75370 | Dallas | 98 | A | 3 | — |
| 56 | 75371 | Dallas | 98 | A | 3 | — |
| 57 | 75372 | Dallas | 98 | A | 3 | — |
| 58 | 75373 | Dallas | 98 | A | 3 | — |
| 59 | 75374 | Dallas | 98 | A | 3 | — |
| 60 | 75376 | Dallas | 98 | A | 3 | — |
| 61 | 75378 | Dallas | 98 | A | 3 | — |
| 62 | 75379 | Dallas | 98 | A | 3 | — |
| 63 | 75380 | Dallas | 98 | A | 3 | — |
| 64 | 75381 | Dallas | 98 | A | 3 | — |
| 65 | 75382 | Dallas | 98 | A | 3 | — |
| 66 | 75386 | Dallas | 98 | A | 3 | — |
| 67 | 75387 | Dallas | 98 | A | 3 | — |
| 68 | 75388 | Dallas | 98 | A | 3 | — |
| 69 | 75389 | Dallas | 98 | A | 3 | — |
| 70 | 75390 | Dallas | 98 | A | 3 | — |
| 71 | 75391 | Dallas | 98 | A | 3 | — |
| 72 | 75392 | Dallas | 98 | A | 3 | — |
| 73 | 75393 | Dallas | 98 | A | 3 | — |
| 74 | 75394 | Dallas | 98 | A | 3 | — |
| 75 | 75395 | Dallas | 98 | A | 3 | — |
| 76 | 75396 | Dallas | 98 | A | 3 | — |
| 77 | 75397 | Dallas | 98 | A | 3 | — |
| 78 | 75398 | Dallas | 98 | A | 3 | — |
| 79 | 75045 | Garland | 97 | A | 2 | — |
| 80 | 75047 | Garland | 97 | A | 2 | — |
| 81 | 75049 | Garland | 97 | A | 2 | — |
| 82 | 75185 | Mesquite | 97 | A | 1 | — |
| 83 | 75187 | Mesquite | 97 | A | 1 | — |
| 84 | 75038 | Irving | 95 | A | 0 | $392K |
| 85 | 75063 | Irving | 95 | A | 0 | $510K |
| 86 | 75088 | Rowlett | 95 | A | 0 | $326K |
| 87 | 75089 | Rowlett | 95 | A | 0 | $359K |
| 88 | 75138 | Duncanville | 95 | A | 0 | — |
| 89 | 75141 | Hutchins | 95 | A | 0 | $99K |
| 90 | 75172 | Wilmer | 95 | A | 0 | $104K |
| 91 | 75001 | Addison | 94 | A | 9 (1 health) | $456K |
| 92 | 75065 | Lake Dallas | 94 | A | 2 | $302K |
| 93 | 75159 | Seagoville | 94 | A | 5 (1 health) | $225K |
| 94 | 75201 | Dallas | 94 | A | 3 | $650K |
| 95 | 75202 | Dallas | 94 | A | 3 | $325K |
| 96 | 75210 | Dallas | 94 | A | 3 | $111K |
| 97 | 75212 | Dallas | 94 | A | 3 | $204K |
| 98 | 75221 | Dallas | 94 | A | 3 | — |
| 99 | 75223 | Dallas | 94 | A | 3 | $244K |
| 100 | 75226 | Dallas | 94 | A | 3 | — |
| 101 | 75236 | Dallas | 94 | A | 3 | $238K |
| 102 | 75237 | Dallas | 94 | A | 3 | $232K |
| 103 | 75247 | Dallas | 94 | A | 3 | — |
| 104 | 75258 | Dallas | 94 | A | 3 | — |
| 105 | 75275 | Dallas | 94 | A | 3 | — |
| 106 | 75303 | Dallas | 94 | A | 3 | — |
| 107 | 75354 | Dallas | 94 | A | 3 | — |
| 108 | 75046 | Garland | 93 | A | 2 | — |
| 109 | 75181 | Mesquite | 93 | A | 1 | $274K |
| 110 | 75182 | Sunnyvale | 93 | A | 2 | $541K |
| 111 | 75011 | Carrollton | 90 | A | 0 | — |
| 112 | 75019 | Coppell | 90 | A | 1 | $526K |
| 113 | 75048 | Sachse | 90 | A | 0 | $366K |
| 114 | 75062 | Irving | 90 | A | 0 | $255K |
| 115 | 75104 | Cedar Hill | 90 | A | 0 | $275K |
| 116 | 75116 | Duncanville | 90 | A | 0 | $220K |
| 117 | 75137 | Duncanville | 90 | A | 0 | $261K |
| 118 | 75134 | Lancaster | 89 | A | 7 (1 health) | $217K |
| 119 | 75203 | Dallas | 89 | A | 3 | $125K |
| 120 | 75204 | Dallas | 89 | A | 3 | $452K |
| 121 | 75205 | Dallas | 89 | A | 3 | $1519K |
| 122 | 75206 | Dallas | 89 | A | 3 | $558K |
| 123 | 75207 | Dallas | 89 | A | 3 | — |
| 124 | 75208 | Dallas | 89 | A | 3 | $415K |
| 125 | 75211 | Dallas | 89 | A | 3 | $199K |
| 126 | 75214 | Dallas | 89 | A | 3 | $707K |
| 127 | 75216 | Dallas | 89 | A | 3 | $139K |
| 128 | 75217 | Dallas | 89 | A | 3 | $165K |
| 129 | 75219 | Dallas | 89 | A | 3 | $378K |
| 130 | 75224 | Dallas | 89 | A | 3 | $213K |
| 131 | 75225 | Dallas | 89 | A | 3 | $1489K |
| 132 | 75227 | Dallas | 89 | A | 3 | $203K |
| 133 | 75231 | Dallas | 89 | A | 3 | $466K |
| 134 | 75233 | Dallas | 89 | A | 3 | $250K |
| 135 | 75235 | Dallas | 89 | A | 3 | $283K |
| 136 | 75238 | Dallas | 89 | A | 3 | $526K |
| 137 | 75240 | Dallas | 89 | A | 3 | $327K |
| 138 | 75241 | Dallas | 89 | A | 3 | $163K |
| 139 | 75243 | Dallas | 89 | A | 3 | $359K |
| 140 | 75244 | Dallas | 89 | A | 3 | $578K |
| 141 | 75246 | Dallas | 89 | A | 3 | $450K |
| 142 | 75248 | Dallas | 89 | A | 3 | $543K |
| 143 | 75253 | Dallas | 89 | A | 3 | $121K |
| 144 | 75254 | Dallas | 89 | A | 3 | $303K |
| 145 | 75040 | Garland | 88 | A | 2 | $245K |
| 146 | 75043 | Garland | 88 | A | 2 | $253K |
| 147 | 75044 | Garland | 88 | A | 2 | $306K |
| 148 | 75053 | Grand Prairie | 88 | A | 31 (3 health) | — |
| 149 | 75149 | Mesquite | 88 | A | 1 | $208K |
| 150 | 75006 | Carrollton | 85 | A | 0 | $297K |
| 151 | 75060 | Irving | 85 | A | 0 | $224K |
| 152 | 75061 | Irving | 85 | A | 0 | $228K |
| 153 | 75115 | Desoto | 84 | B | 3 | $283K |
| 154 | 75146 | Lancaster | 84 | B | 7 (1 health) | $249K |
| 155 | 75209 | Dallas | 84 | B | 3 | $838K |
| 156 | 75215 | Dallas | 84 | B | 3 | $138K |
| 157 | 75218 | Dallas | 84 | B | 3 | $476K |
| 158 | 75220 | Dallas | 84 | B | 3 | $450K |
| 159 | 75228 | Dallas | 84 | B | 3 | $260K |
| 160 | 75229 | Dallas | 84 | B | 3 | $599K |
| 161 | 75230 | Dallas | 84 | B | 3 | $870K |
| 162 | 75232 | Dallas | 84 | B | 3 | $207K |
| 163 | 75234 | Dallas | 84 | B | 3 | $314K |
| 164 | 75042 | Garland | 83 | B | 2 | $221K |
| 165 | 75150 | Mesquite | 83 | B | 1 | $221K |
| 166 | 75051 | Grand Prairie | 81 | B | 31 (3 health) | $197K |
| 167 | 75052 | Grand Prairie | 81 | B | 31 (3 health) | $282K |
| 168 | 75041 | Garland | 78 | B | 2 | $215K |
| 169 | 75180 | Balch Springs | 76 | B | 3 (1 health) | $208K |
| 170 | 75081 | Richardson | 70 | B | 19 (9 health) | $341K |
| 171 | 75082 | Richardson | 70 | B | 19 (9 health) | $474K |
| 172 | 75083 | Richardson | 66 | C | 19 (9 health) | — |
| 173 | 75085 | Richardson | 66 | C | 19 (9 health) | — |
| 174 | 75080 | Richardson | 65 | C | 19 (9 health) | $420K |
Recommended Buyer Guides for Dallas County
Below: editorial picks, no sponsored placements.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- 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 Dallas County, Texas
Overview
Dallas County in Texas covers 174 ZIP codes with an average Home Safety Score of A (93/100).
150 of 174 ZIP codes have recorded EPA violations. 59 health-based violations have been documented.
← Back to Texas 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.