Dane County, Wisconsin
58 ZIP codes · Avg score 61/100 · Grade C · Updated
ZipCheckup grade for Dane County: C.
A mixed picture - some signals here are worth your attention.
Water safety in Dane County is uneven - some of its 58 ZIP codes meet standards cleanly while others carry documented violations.
How Dane County Compares
How Dane County Compares
Dane County scores 9 points below the Wisconsin state average (70/100) and 12 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 Last verified:
ZIP Code Risk Map
Water Quality Map: Dane County, Wisconsin
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 10.2 (asthma 9.9%, diabetes 8.2%)
Estimated additional annual cost per homeowner: $722, driven primarily by flood
55% of homes built before 1978 (lead paint era)
Violation History (2021–2024)
↑ Worsening trendEPA violation counts by year across Dane County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 55 violations. Past 5 years: 75 total (75 health-based). Health-based violations are rising versus the prior 2-year window - worth closer monitoring.
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
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $722
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
251,845 housing units in Dane 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 Dane County
Remediation costs are relatively manageable for most homeowners in Dane 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 Dane County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Dane County
8 community water systems serving Dane County.
- C
- C
- C
- D
- C
- C
Show all 8 water systems
- C
- C
34 total water systems serve Dane County.
Systems with the most violations in Dane County
5 water systems with recorded EPA violations.
- D
- C
- C
- D
- C
All ZIP Codes in Dane County
58 ZIP codes tracked in Dane County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 53572 | Mount Horeb | 67 | C | 0 | $382K |
| 2 | 53589 | Stoughton | 66 | C | 6 | $318K |
| 3 | 53527 | Cottage Grove | 65 | C | 2 (1 health) | $403K |
| 4 | 53558 | Mc Farland | 65 | C | 2 (1 health) | $378K |
| 5 | 53703 | Madison | 65 | C | 2 (1 health) | $472K |
| 6 | 53706 | Madison | 65 | C | 2 (1 health) | — |
| 7 | 53715 | Madison | 65 | C | 2 (1 health) | $436K |
| 8 | 53716 | Madison | 65 | C | 2 (1 health) | $325K |
| 9 | 53726 | Madison | 65 | C | 2 (1 health) | $601K |
| 10 | 53583 | Sauk City | 64 | C | 4 (1 health) | $305K |
| 11 | 53598 | Windsor | 64 | C | 4 (2 health) | $373K |
| 12 | 53711 | Madison | 64 | C | 3 (1 health) | $388K |
| 13 | 53713 | Madison | 64 | C | 3 (1 health) | $259K |
| 14 | 53559 | Marshall | 63 | C | 5 (1 health) | $281K |
| 15 | 53714 | Madison | 63 | C | 8 (1 health) | $275K |
| 16 | 53590 | Sun Prairie | 62 | C | 6 (3 health) | $355K |
| 17 | 53704 | Madison | 62 | C | 8 (1 health) | $289K |
| 18 | 53719 | Madison | 61 | C | 9 (2 health) | $349K |
| 19 | 53532 | De Forest | 60 | C | 10 (3 health) | $356K |
| 20 | 53575 | Oregon | 60 | C | 9 (2 health) | $385K |
| 21 | 53718 | Madison | 60 | C | 8 (4 health) | $329K |
| 22 | 53528 | Cross Plains | 54 | D | 32 (1 health) | $425K |
| 23 | 53562 | Middleton | 52 | D | 32 (2 health) | $496K |
| 24 | 53717 | Madison | 52 | D | 32 (2 health) | $405K |
| 25 | 53593 | Verona | 50 | D | 36 (3 health) | $465K |
| 26 | 53597 | Waunakee | 50 | D | 42 (2 health) | $463K |
| 27 | 53705 | Madison | 50 | D | 37 (2 health) | $447K |
| 28 | 53508 | Belleville | — | — | 0 | $331K |
| 29 | 53515 | Black Earth | — | — | 6 (1 health) | $336K |
| 30 | 53517 | Blue Mounds | — | — | 0 | $411K |
| 31 | 53521 | Brooklyn | — | — | 6 | $366K |
| 32 | 53529 | Dane | — | — | 1 | $374K |
| 33 | 53531 | Deerfield | — | — | 5 (1 health) | $334K |
| 34 | 53560 | Mazomanie | — | — | 4 (1 health) | $329K |
| 35 | 53571 | Morrisonville | — | — | — | |
| 36 | 53596 | Sun Prairie | — | — | — | |
| 37 | 53701 | Madison | — | — | — | |
| 38 | 53702 | Madison | — | — | — | |
| 39 | 53707 | Madison | — | — | — | |
| 40 | 53708 | Madison | — | — | — | |
| 41 | 53725 | Madison | — | — | — | |
| 42 | 53744 | Madison | — | — | — | |
| 43 | 53774 | Madison | — | — | — | |
| 44 | 53777 | Madison | — | — | — | |
| 45 | 53778 | Madison | — | — | — | |
| 46 | 53779 | Madison | — | — | — | |
| 47 | 53782 | Madison | — | — | — | |
| 48 | 53783 | Madison | — | — | — | |
| 49 | 53784 | Madison | — | — | — | |
| 50 | 53785 | Madison | — | — | — | |
| 51 | 53786 | Madison | — | — | — | |
| 52 | 53788 | Madison | — | — | — | |
| 53 | 53789 | Madison | — | — | — | |
| 54 | 53790 | Madison | — | — | — | |
| 55 | 53791 | Madison | — | — | — | |
| 56 | 53792 | Madison | — | — | 2 (1 health) | — |
| 57 | 53793 | Madison | — | — | — | |
| 58 | 53794 | Madison | — | — | — |
Recommended Buyer Guides for Dane County
Filtered against federal data, fitted to local risks.
- Best Lead Paint Test Kits — 55% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- 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 Dane County, Wisconsin
Overview
Dane County in Wisconsin covers 58 tracked ZIP records with an average Home Safety Score of C (61/100) across 27 scored records.
32 of 35 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 10 health-based violations appear in the available health breakdown.
← Back to Wisconsin 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.