Denver County, Colorado
55 ZIP codes · Avg score 66/100 · Grade C · Updated 2026-06-03
Based on current EPA data, Denver County's 55 ZIP codes reflect fair but mixed water safety.
How Denver County Compares
How Denver County Compares
Denver County scores 6 points above the Colorado state average (60/100) and 2 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Denver County, Colorado
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 8.7 (asthma 10.3%, diabetes 7.1%)
Estimated additional annual cost per homeowner: $867, driven primarily by wildfire
Infrastructure: 0.34% avg pipe failure probability, 25% of ZIPs at high risk
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: $867
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 Denver County
Remediation costs are relatively manageable for most homeowners in Denver 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 Denver 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 Denver County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Denver Water Board | 1,287,000 | 165 |
| 2 | Crestview Water Supply District | 23,756 | 165 |
| 3 | Cherry Creek Valley Water Supply District | 22,000 | 165 |
| 4 | North Washington Street Water Supply District | 14,500 | 165 |
| 5 | Advenir French Quarter | 3,447 | 165 |
10 total water systems serve Denver County.
All ZIP Codes in Denver County
55 ZIP codes tracked in Denver County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 80201 | Denver | 69 | C | 3 | — |
| 2 | 80202 | Denver | 69 | C | 3 | $677K |
| 3 | 80203 | Denver | 69 | C | 3 | $463K |
| 4 | 80205 | Denver | 69 | C | 3 | $628K |
| 5 | 80206 | Denver | 69 | C | 3 | $892K |
| 6 | 80207 | Denver | 69 | C | 3 | $662K |
| 7 | 80211 | Denver | 69 | C | 3 | $748K |
| 8 | 80212 | Denver | 69 | C | 3 | $705K |
| 9 | 80217 | Denver | 69 | C | 3 | — |
| 10 | 80218 | Denver | 69 | C | 3 | $654K |
| 11 | 80231 | Denver | 69 | C | 3 | $490K |
| 12 | 80236 | Denver | 69 | C | 3 | $496K |
| 13 | 80237 | Denver | 69 | C | 3 | $587K |
| 14 | 80238 | Denver | 69 | C | 3 | $806K |
| 15 | 80239 | Denver | 69 | C | 3 | $395K |
| 16 | 80246 | Denver | 69 | C | 3 | $660K |
| 17 | 80249 | Denver | 69 | C | 3 | $458K |
| 18 | 80208 | Denver | 65 | C | 3 | — |
| 19 | 80230 | Denver | 65 | C | 3 | $799K |
| 20 | 80243 | Denver | 65 | C | 3 | — |
| 21 | 80244 | Denver | 65 | C | 3 | — |
| 22 | 80247 | Denver | 65 | C | 3 | $295K |
| 23 | 80248 | Denver | 65 | C | 3 | — |
| 24 | 80250 | Denver | 65 | C | 3 | — |
| 25 | 80251 | Denver | 65 | C | 3 | — |
| 26 | 80252 | Denver | 65 | C | 3 | — |
| 27 | 80256 | Denver | 65 | C | 3 | — |
| 28 | 80257 | Denver | 65 | C | 3 | — |
| 29 | 80259 | Denver | 65 | C | 3 | — |
| 30 | 80261 | Denver | 65 | C | 3 | — |
| 31 | 80262 | Denver | 65 | C | 3 | — |
| 32 | 80263 | Denver | 65 | C | 3 | — |
| 33 | 80264 | Denver | 65 | C | 3 | — |
| 34 | 80265 | Denver | 65 | C | 3 | — |
| 35 | 80266 | Denver | 65 | C | 3 | — |
| 36 | 80271 | Denver | 65 | C | 3 | — |
| 37 | 80273 | Denver | 65 | C | 3 | — |
| 38 | 80274 | Denver | 65 | C | 3 | — |
| 39 | 80279 | Denver | 65 | C | 3 | — |
| 40 | 80280 | Denver | 65 | C | 3 | — |
| 41 | 80281 | Denver | 65 | C | 3 | — |
| 42 | 80290 | Denver | 65 | C | 3 | — |
| 43 | 80291 | Denver | 65 | C | 3 | — |
| 44 | 80293 | Denver | 65 | C | 3 | — |
| 45 | 80294 | Denver | 65 | C | 3 | — |
| 46 | 80295 | Denver | 65 | C | 3 | — |
| 47 | 80299 | Denver | 65 | C | 3 | — |
| 48 | 80204 | Denver | 64 | C | 3 | $580K |
| 49 | 80209 | Denver | 64 | C | 3 | $972K |
| 50 | 80210 | Denver | 64 | C | 3 | $871K |
| 51 | 80216 | Denver | 64 | C | 3 | $393K |
| 52 | 80219 | Denver | 64 | C | 3 | $426K |
| 53 | 80220 | Denver | 64 | C | 3 | $740K |
| 54 | 80223 | Denver | 64 | C | 3 | $498K |
| 55 | 80224 | Denver | 64 | C | 3 | $565K |
Recommended Buyer Guides for Denver County
Four sources — EPA, NSF, FEMA, CDC — drive the match.
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
- Best HEPA Air Purifiers for Wildfire Smoke — Wildfire is the top compound risk factor
Deep Dive Reports
Detailed analysis for Denver County, Colorado
Overview
Denver County in Colorado covers 55 ZIP codes with an average Home Safety Score of C (66/100).
55 of 55 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← Back to Colorado 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.