Fillmore County, Minnesota
13 ZIP codes · Avg score 61/100 · Grade C · Updated 2026-06-03
Tracking 13 ZIP codes in Fillmore County reveals a mixed picture — tap water quality varies meaningfully by location.
How Fillmore County Compares
How Fillmore County Compares
Fillmore County scores 1 points below the Minnesota state average (62/100) and 7 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Fillmore County, Minnesota
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.9 (asthma 10.1%, diabetes 11.8%)
Estimated additional annual cost per homeowner: $1,361, driven primarily by energy_code_gap
Infrastructure: 0.434% avg pipe failure probability, 69% of ZIPs at high risk
70.2% of homes built before 1978 (lead paint era)
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: $1,361
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
11,150 housing units in Fillmore 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 Fillmore County
Remediation costs are relatively manageable for most homeowners in Fillmore 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 Fillmore 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 Fillmore County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Preston | 1,322 | 6 |
| 2 | Greenleafton | 50 | 6 |
| 3 | Mabel | 715 | 2 |
| 4 | Rushford | 1,860 | 1 |
| 5 | Wykoff | 444 | 1 |
13 total water systems serve Fillmore County.
All ZIP Codes in Fillmore County
13 ZIP codes tracked in Fillmore County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 55935 | Fountain | 70 | B | 0 | $233K |
| 2 | 55954 | Mabel | 69 | C | 2 | $146K |
| 3 | 55939 | Harmony | 66 | C | 0 | $185K |
| 4 | 55962 | Peterson | 66 | C | 0 | $267K |
| 5 | 55922 | Canton | 63 | C | 0 | $113K |
| 6 | 55949 | Lanesboro | 62 | C | 0 | $250K |
| 7 | 55965 | Preston | 62 | C | 6 | $192K |
| 8 | 55923 | Chatfield | 58 | C | 0 | $251K |
| 9 | 55971 | Rushford | 58 | C | 1 | $225K |
| 10 | 55975 | Spring Valley | 57 | C | 0 | $202K |
| 11 | 55990 | Wykoff | 55 | C | 1 | $215K |
| 12 | 55951 | Le Roy | 53 | D | 0 | $154K |
| 13 | 55961 | Ostrander | 53 | D | 0 | $165K |
Recommended Buyer Guides for Fillmore County
Editorial-only picks, screened against the EPA detections on file.
- Best Lead Paint Test Kits — 70.2% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Deep Dive Reports
Detailed analysis for Fillmore County, Minnesota
Overview
Fillmore County in Minnesota covers 13 ZIP codes with an average Home Safety Score of C (61/100).
4 of 13 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← Back to Minnesota 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.