Columbia County, Wisconsin
12 ZIP codes · Avg score 79/100 · Grade B
ZipCheckup grade for Columbia County: B.
This ZIP has a few items worth a quick check.
Residents of Columbia County can read the A-B grade as a starting point and then open their own ZIP report, one of 12 on this site.
How Columbia County Compares
How Columbia County Compares
Columbia County scores 9 points above the Wisconsin state average (70/100) and 6 points above 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: Columbia County, Wisconsin
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.7 (asthma 10.8%, diabetes 11.3%)
Modeled additional annual cost estimate per homeowner: $1,005, largest modeled factor: Flood
56% 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: $1,005
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
24,573 housing units in Columbia 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 Columbia County
Modeled remediation costs in Columbia 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 Columbia County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems mapped to Columbia County ZIP codes
8 community water systems mapped to Columbia County ZIP codes; EPA may list more systems serving the county.
- B
- B
- B
- B
Show all 8 water systems
- B
16 water systems mapped to Columbia County ZIP codes in our data; EPA may list more systems serving the county.
Systems with the most violations in Columbia County
5 water systems with violations in EPA records.
- B
- B
- B
All ZIP Codes in Columbia County
12 ZIP codes tracked in Columbia County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 53925 | Columbus | 80 | B | 11 (6 health) | $258K |
| 2 | 53901 | Portage | 77 | B | 10 (2 health) | $214K |
| 3 | 53555 | Lodi | — | — | 4 (2 health) | $360K |
| 4 | 53911 | Arlington | — | — | 0 | $286K |
| 5 | 53923 | Cambria | — | — | 1 | $211K |
| 6 | 53928 | Doylestown | — | — | $138K | |
| 7 | 53932 | Fall River | — | — | 2 (1 health) | $277K |
| 8 | 53935 | Friesland | — | — | $147K | |
| 9 | 53954 | Pardeeville | — | — | 12 (3 health) | $249K |
| 10 | 53955 | Poynette | — | — | 4 (1 health) | $285K |
| 11 | 53960 | Rio | — | — | 4 (1 health) | $247K |
| 12 | 53969 | Wyocena | — | — | $200K |
Recommended Buyer Guides for Columbia County
Which guides appear depends on what the county data show.
- Best Water Filters for Lead — Lead above EPA action level in 1 ZIP code
- Best Lead Paint Test Kits — 56% of homes built before 1980
- 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 Columbia County, Wisconsin
Overview
Columbia County in Wisconsin covers 12 tracked ZIP records with an average Home Safety Score of B (79/100) across 2 scored records.
8 of 9 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 13 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.