Loretto, MN: High Radon Risk — 55/100 (2026)
6 ZIP codes · 4 water systems · Updated 2026-06-03
Unlike higher-rated cities in MN, Loretto carries a fair number of documented violations — the pattern of compliance gaps keeps the city in the middle tier of EPA safety rankings.
How Loretto Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Loretto, MN
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
How ZIP codes in Loretto score across all safety grades.
What You Should Know About Loretto Water
- Estimated remediation: $1,200 per household.
- CDC health risk index: 10.25.
Who Supplies Your Water in Loretto
Loretto, MN draws its residential water from 3 separate providers among the 4 federally tracked systems. Each operates independently, with its own infrastructure, rate structure, and compliance record.
Overview
We track water quality and home safety data for 6 ZIP codes in Loretto, Minnesota (population ~3,704), covering 4 community water systems serving approximately 11,879 people region-wide.
No EPA violations recorded across any ZIP codes in Loretto — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Loretto: C (55/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Loretto water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Loretto
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
- Zone 1 (High): 6 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 55357 | C | Loretto | 637 |
| 55595 | C | Loretto | 637 |
| 55596 | C | Loretto | 637 |
| 55597 | C | Loretto | 637 |
| 55598 | C | Loretto | 637 |
| 55599 | C | Loretto | 637 |
All ZIP Codes in Loretto
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
Health Outcomes in Loretto
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Cost Context: What Remediation Means for Loretto Homeowners
Setting Loretto remediation figures against its property market, the resulting ratio sits comfortably in the low tier — a classification that reflects the kind of household financial position where most homeowners can identify documented issues, schedule the work, and absorb the cost without it registering as a significant budget disruption.
Remediation costs in Loretto are relatively low compared to home values. The $800–$1,500 estimated range is a small fraction of median property value. Home values are 105% above the Minnesota average.
What You Can Do in Loretto
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
Deep Dive Reports
Detailed analysis for Loretto, MN