Washington County, Minnesota
17 ZIP codes · Avg score 59/100 · Grade C
ZipCheckup grade for Washington County: C.
A mixed picture - some signals here are worth your attention.
Somewhere in the middle: that is where the composite score for Washington County lands, across 17 tracked ZIP codes.
How Washington County Compares
How Washington County Compares
Washington County scores 9 points below the Minnesota state average (68/100) and 14 points below the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData
ZIP Code Risk Map
Water Quality Map: Washington County, Minnesota
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 11.1 (asthma 9.3%, diabetes 10.3%)
Modeled additional annual cost estimate per homeowner: $1,256, largest modeled factor: Flood
34% of homes built before 1980 (lead paint was banned for residential use in 1978)
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,256
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
98,750 housing units in Washington 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 Washington County
Modeled remediation costs in Washington County can be compared with the median property value; actual costs vary by property.
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 Washington County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems mapped to Washington County ZIP codes
8 community water systems mapped to Washington County ZIP codes; EPA may list more systems serving the county.
- C
- C
- C
- C
- C
- D
Show all 8 water systems
- C
- C
23 water systems mapped to Washington County ZIP codes in our data; EPA may list more systems serving the county.
Systems with the most violations in Washington County
5 water systems with violations in EPA records.
- D
- C
- D
- D
- C
All ZIP Codes in Washington County
17 ZIP codes tracked in Washington County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 55016 | Cottage Grove | 67 | C | 0 | $359K |
| 2 | 55025 | Forest Lake | 66 | C | 2 | $386K |
| 3 | 55043 | Lakeland | 66 | C | 1 | $361K |
| 4 | 55071 | Saint Paul Park | 66 | C | 1 | $256K |
| 5 | 55115 | Saint Paul | 65 | C | 1 | $482K |
| 6 | 55128 | Saint Paul | 64 | C | 9 (1 health) | $301K |
| 7 | 55055 | Newport | 50 | D | 0 | $331K |
| 8 | 55042 | Lake Elmo | 49 | D | 16 | $594K |
| 9 | 55082 | Stillwater | 49 | D | 4 | $460K |
| 10 | 55125 | Saint Paul | 47 | D | 9 (1 health) | $397K |
| 11 | 55001 | Afton | — | — | $654K | |
| 12 | 55003 | Bayport | — | — | 2 | $363K |
| 13 | 55047 | Marine On Saint Croix | — | — | $479K | |
| 14 | 55073 | Scandia | — | — | 1 | $470K |
| 15 | 55083 | Stillwater | — | — | — | |
| 16 | 55090 | Willernie | — | — | 1 | $305K |
| 17 | 55129 | Saint Paul | — | — | 1 | $518K |
Recommended Buyer Guides for Washington County
Selection follows a fixed set of rules applied to local records: signals such as PFAS detections, lead action-level exceedances on record, a large share of pre-1978 housing, EPA Radon Zone 1, or a top flood or wildfire risk each add a related guide, and when none applies, general water testing and filtration guides are shown instead.
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in 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 Washington County, Minnesota
Overview
Washington County in Minnesota covers 17 tracked ZIP records with an average Home Safety Score of C (59/100) across 10 scored records.
12 of 14 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 1 health-based violation appear in the available health breakdown.
← Back to Minnesota Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.