Piscataquis County, Maine
13 ZIP codes · Avg score 51/100 · Grade D · Updated 2026-06-04
Systems across Piscataquis County's 13 ZIP codes show elevated violation counts — the county's low safety grade reflects that ongoing compliance pattern.
How Piscataquis County Compares
How Piscataquis County Compares
Piscataquis County scores 6 points below the Maine state average (57/100) and 17 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Piscataquis County, Maine
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15.6 (asthma 12.7%, diabetes 13.8%)
Estimated additional annual cost per homeowner: $1,186, driven primarily by energy_code_gap
Infrastructure: 0.418% avg pipe failure probability, 69% of ZIPs at high risk
68.1% of homes built before 1978 (lead paint era)
Violation History (2023–2025)
→ Stable trendEPA violation counts by year across Piscataquis County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 19 violations. Past 5 years: 21 total (21 health-based).
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
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,186
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
14,371 housing units in Piscataquis 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 Piscataquis County
Remediation costs are relatively manageable for most homeowners in Piscataquis 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 Piscataquis 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 Piscataquis County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | MONSON UTILITIES DISTRICT | 298 | 12 |
| 2 | GUILFORD-SANGERVILLE UTILITIES DISTRICT | 1,535 | 11 |
| 3 | Brownville Jct Water Department | 663 | 9 |
| 4 | Brownville Water Department | 253 | 9 |
| 5 | Three Rivers M H Community | 63 | 9 |
8 total water systems serve Piscataquis County.
All ZIP Codes in Piscataquis County
13 ZIP codes tracked in Piscataquis County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 4441 | Greenville | 70 | B | 0 | $293K |
| 2 | 4479 | Sangerville | 65 | C | 3 (1 health) | $118K |
| 3 | 4463 | Milo | 61 | C | 2 (1 health) | $100K |
| 4 | 4406 | Abbot | 53 | D | 0 | $162K |
| 5 | 4415 | Brownville Junction | 53 | D | 0 | $82K |
| 6 | 4443 | Guilford | 52 | D | 8 | $158K |
| 7 | 4464 | Monson | 51 | D | 12 (3 health) | $182K |
| 8 | 4414 | Brownville | 49 | D | 9 (6 health) | $126K |
| 9 | 4426 | Dover Foxcroft | 45 | D | 0 | $146K |
| 10 | 4442 | Greenville Junction | 40 | D | 0 | $217K |
| 11 | 4481 | Sebec | 40 | D | 0 | $192K |
| 12 | 4485 | Shirley Mills | 40 | D | 0 | $217K |
| 13 | 4985 | West Forks | 40 | D | 0 | $262K |
Recommended Buyer Guides for Piscataquis County
Eight risk categories drive the selection — PFAS exceedance, lead above EPA action level, pre-1978 housing share, EPA Radon Zone 1, flood-top-risk, wildfire-top-risk, multi-contaminant load, and a baseline fallback — and each category maps to a specific buyer-guide track that surfaces when the county data hits its threshold for that hazard signal.
- Best Lead Paint Test Kits — 68.1% 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
Deep Dive Reports
Detailed analysis for Piscataquis County, Maine
Overview
Piscataquis County in Maine covers 13 ZIP codes with an average Home Safety Score of D (51/100).
5 of 13 ZIP codes have recorded EPA violations. 11 health-based violations have been documented.
← Back to Maine 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.
What You Can Do
Piscataquis County has a grade of D. Here are steps to protect your household.
Test your tap water
Order a certified lab test kit ($20-$50) to check for lead, bacteria, and other contaminants specific to your ZIP code.
Consider a certified water filter
NSF-certified filters can remove most common contaminants. Match the filter to your test results for best protection. Try our filter matcher
Contact your water utility
Request the latest Consumer Confidence Report (CCR) from your water provider. It details exactly what was found in your water supply.
Check for lead in your home
68.1% of homes in this county were built before 1978. Older plumbing and solder can leach lead into drinking water, especially in the morning.