Juniata County, Pennsylvania
10 ZIP codes · Avg score 52/100 · Grade D · Updated 2026-06-03
The latest EPA cycle for Juniata County covers 10 ZIP codes and shows a low safety grade — systemic compliance gaps have persisted over multiple reporting periods, and the county has not moved out of the bottom tier in recent years.
How Juniata County Compares
How Juniata County Compares
Juniata County scores 3 points below the Pennsylvania state average (55/100) and 16 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Juniata County, Pennsylvania
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Estimated additional annual cost per homeowner: $1,630, driven primarily by flood
Infrastructure: 0.494% avg pipe failure probability, 90% of ZIPs at high risk
76.2% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↑ Worsening trendEPA violation counts by year across Juniata County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 4 violations. Past 5 years: 10 total (10 health-based). Health-based violations are rising versus the prior 2-year window — worth closer monitoring.
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
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: $1,630
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
10,853 housing units in Juniata 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 Juniata County
Remediation costs are relatively manageable for most homeowners in Juniata 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.
Water Systems with Most Violations
Top 5 systems in Juniata County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Thompsontown Muni Authority | 1,000 | 30 |
| 2 | Benners Mhp | 60 | 30 |
| 3 | MCALISTERVILLE AREA JOINT AUTH | 850 | 23 |
| 4 | Mifflintown Muni Authority | 4,450 | 22 |
| 5 | Brookline Retirement Village | 150 | 8 |
14 total water systems serve Juniata County.
All ZIP Codes in Juniata County
10 ZIP codes tracked in Juniata County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 17059 | Mifflintown | 59 | C | 8 (1 health) | $217K |
| 2 | 17086 | Richfield | 59 | C | 3 | $180K |
| 3 | 17058 | Mifflin | 56 | C | 7 (1 health) | $182K |
| 4 | 17049 | Mc Alisterville | 55 | C | 15 | $210K |
| 5 | 17056 | Mexico | 55 | C | 5 | — |
| 6 | 17094 | Thompsontown | 55 | C | 30 (2 health) | $187K |
| 7 | 17841 | Mc Clure | 53 | D | 0 | $161K |
| 8 | 17082 | Port Royal | 52 | D | 7 | $208K |
| 9 | 17014 | Cocolamus | 40 | D | 0 | $167K |
| 10 | 17076 | Oakland Mills | 40 | D | 0 | — |
Recommended Buyer Guides for Juniata County
Independent picks. EPA-grounded. Matched here.
- Best Lead Paint Test Kits — 76.2% 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
- 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 Juniata County, Pennsylvania
Overview
Juniata County in Pennsylvania covers 10 ZIP codes with an average Home Safety Score of D (52/100).
7 of 10 ZIP codes have recorded EPA violations. 4 health-based violations have been documented.
← Back to Pennsylvania 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
Juniata 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
76.2% of homes in this county were built before 1978. Older plumbing and solder can leach lead into drinking water, especially in the morning.