COUNTY REPORT CO

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

Denver County66/100
Colorado avg60/100
National avg68/100

How Denver County Compares

C
County Grade
66/100
Avg Safety Score
55
ZIP Codes
10
Water Systems

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

C
County Grade
66
Avg Safety Score
55
ZIP Codes
Best ZIP: 80201 (69/100)
Lowest ZIP: 80224 (64/100)
$628K
Median Home Value
$1,756
Avg Remediation (28% of home value)

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.

A B C D F

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

Asthma 10.3% (national: 8.9%)
Diabetes 7.1% (national: 10.5%)
Obesity 21.6% (national: 32.4%)

Black markers indicate national averages. Source: CDC PLACES, Census ACS.

Infrastructure Overview

34%
Pipe Failure Probability
25%
ZIPs at High Infra Risk

Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $867

Wildfire $267/yr
Flood $244/yr
Energy Code Gap $188/yr

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

$628K
Median Home Value
$1,756
Est. Remediation Cost
0.3%
of Home Value
Remediation as % of home value low burden

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

Asthma 10.3% (US avg: 8.9%)
Diabetes 7.1% (US avg: 11%)
Obesity 21.6% (US avg: 32.4%)

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.

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

Updated daily.

Frequently Asked Questions

Is water safe in Denver County?
Denver County receives a grade of C. Some ZIP codes have recorded violations and residents in affected areas may want to test their water.
How many water systems serve Denver County?
Denver County is served by 10 public water systems that supply drinking water to residents across 55 ZIP codes.
What is the biggest environmental risk in Denver County?
The primary environmental risk factor in Denver County is wildfire. This contributes to an estimated additional annual cost of $867 per homeowner.
How does Denver County compare to Colorado?
Denver County has an average water safety score of 66/100, which is above the Colorado state average of 60/100.

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