Rolette County, North Dakota
6 ZIP codes · Avg score 55/100 · Grade C · Updated 2026-06-03
Tracking 6 ZIP codes in Rolette County reveals a mixed picture — tap water quality varies meaningfully by location.
How Rolette County Compares
How Rolette County Compares
Rolette County scores 1 points below the North Dakota state average (56/100) and 13 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Rolette County, North Dakota
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 17 (asthma 13.3%, diabetes 17.4%)
Estimated additional annual cost per homeowner: $647, driven primarily by wildfire
Infrastructure: 0.362% avg pipe failure probability, 17% of ZIPs at high risk
67.8% 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: $647
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
4,674 housing units in Rolette 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 Rolette County
Remediation costs are relatively manageable for most homeowners in Rolette 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 Rolette County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 3 systems in Rolette County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | City of Dunseith | 773 | 4 |
| 2 | ROLLA CITY OF | 1,280 | 1 |
| 3 | City of Rolette | 484 | 0 |
All ZIP Codes in Rolette County
6 ZIP codes tracked in Rolette County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 58366 | Rolette | 70 | B | 0 | $142K |
| 2 | 58367 | Rolla | 66 | C | 1 | $150K |
| 3 | 58329 | Dunseith | 61 | C | 4 (1 health) | $85K |
| 4 | 58369 | Saint John | 53 | D | 0 | $117K |
| 5 | 58316 | Belcourt | 40 | D | 0 | $82K |
| 6 | 58339 | Hansboro | 40 | D | 0 | — |
Recommended Buyer Guides for Rolette County
If FEMA records flag flood-top-risk status or EPA samples show PFAS exceedances, the matching logic lifts emergency-water and PFAS-rated filtration into the recommendations — federal data drives the order, not retailer arrangements.
- Best Lead Paint Test Kits — 67.8% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
- Best HEPA Air Purifiers for Wildfire Smoke — Wildfire is the top compound risk factor
Deep Dive Reports
Detailed analysis for Rolette County, North Dakota
Overview
Rolette County in North Dakota covers 6 ZIP codes with an average Home Safety Score of C (55/100).
2 of 6 ZIP codes have recorded EPA violations. 1 health-based violation have been documented.
← Back to North Dakota 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.