York County, Pennsylvania
44 ZIP codes · Avg score 53/100 · Grade D · Updated 2026-06-03
Water monitoring data from York County's 44 ZIP codes tells a below-average story — health violations are present and system-level detail is worth checking.
How York County Compares
How York County Compares
York County scores 2 points below the Pennsylvania state average (55/100) and 15 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: York 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: $2,252, driven primarily by flood
Infrastructure: 0.42% avg pipe failure probability, 49% of ZIPs at high risk
62.9% of homes built before 1978 (lead paint era)
Violation History (2021–2023)
→ Stable trendEPA violation counts by year across York County water systems. Health-based shown in red, total in blue.
Peak year: 2022 with 30 violations. Past 5 years: 34 total (34 health-based).
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: $2,252
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
184,728 housing units in York 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 York County
Remediation costs are relatively manageable for most homeowners in York 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 York County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | YORK WATER CO | 206,762 | 292 |
| 2 | West Manchester Twp Authority | 9,960 | 198 |
| 3 | Franklin System York Water | 4,400 | 198 |
| 4 | Amblebrook | 450 | 198 |
| 5 | Williams Grove Mhp | 282 | 198 |
42 total water systems serve York County.
All ZIP Codes in York County
44 ZIP codes tracked in York County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 17361 | Shrewsbury | 66 | C | 5 | $292K |
| 2 | 17363 | Stewartstown | 66 | C | 8 | $308K |
| 3 | 17349 | New Freedom | 63 | C | 11 | $346K |
| 4 | 17304 | Aspers | 61 | C | 2 | $256K |
| 5 | 17332 | Hanover | 61 | C | 8 | — |
| 6 | 17334 | Hanover | 61 | C | 8 | — |
| 7 | 17335 | Hanover | 61 | C | 8 | — |
| 8 | 17331 | Hanover | 60 | C | 8 | $229K |
| 9 | 17362 | Spring Grove | 58 | C | 5 | $259K |
| 10 | 17401 | York | 58 | C | 22 (1 health) | $85K |
| 11 | 17407 | York | 58 | C | 22 (1 health) | $289K |
| 12 | 17019 | Dillsburg | 57 | C | 1 | $277K |
| 13 | 17309 | Brogue | 57 | C | 0 | $255K |
| 14 | 17339 | Lewisberry | 57 | C | 0 | $289K |
| 15 | 17366 | Windsor | 57 | C | 0 | $194K |
| 16 | 17368 | Wrightsville | 57 | C | 4 | $199K |
| 17 | 17323 | Franklintown | 55 | C | 0 | $157K |
| 18 | 17314 | Delta | 54 | D | 7 | $256K |
| 19 | 17370 | York Haven | 54 | D | 3 | $221K |
| 20 | 17329 | Glenville | 53 | D | 0 | $299K |
| 21 | 17344 | Mc Sherrystown | 53 | D | 0 | $204K |
| 22 | 17352 | New Park | 53 | D | 0 | $323K |
| 23 | 17355 | Railroad | 53 | D | 0 | $211K |
| 24 | 17365 | Wellsville | 53 | D | 0 | $268K |
| 25 | 17405 | York | 53 | D | 22 (1 health) | — |
| 26 | 17518 | Drumore | 53 | D | 0 | $315K |
| 27 | 17345 | Manchester | 52 | D | 0 | $205K |
| 28 | 17356 | Red Lion | 52 | D | 17 | $228K |
| 29 | 17319 | Etters | 51 | D | 2 | $230K |
| 30 | 17415 | York | 50 | D | 22 (1 health) | — |
| 31 | 17327 | Glen Rock | 48 | D | 2 | $306K |
| 32 | 17402 | York | 48 | D | 22 (1 health) | $248K |
| 33 | 17403 | York | 48 | D | 22 (1 health) | $207K |
| 34 | 17404 | York | 48 | D | 22 (1 health) | $176K |
| 35 | 17406 | York | 48 | D | 22 (1 health) | $218K |
| 36 | 17408 | York | 48 | D | 22 (1 health) | $240K |
| 37 | 17313 | Dallastown | 47 | D | 11 | $229K |
| 38 | 17302 | Airville | 45 | D | 0 | $251K |
| 39 | 17315 | Dover | 45 | D | 18 (6 health) | $222K |
| 40 | 17322 | Felton | 45 | D | 0 | $243K |
| 41 | 17347 | Mount Wolf | 45 | D | 0 | $229K |
| 42 | 17312 | Craley | 40 | D | 0 | — |
| 43 | 17317 | East Prospect | 40 | D | 0 | $190K |
| 44 | 17321 | Fawn Grove | 40 | D | 0 | $274K |
Recommended Buyer Guides for York County
Strictly editorial — no paid placements influence which guides appear; the selection draws on NSF certifications and EPA detection records for water systems serving this county.
- Best Lead Paint Test Kits — 62.9% 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 York County, Pennsylvania
Overview
York County in Pennsylvania covers 44 ZIP codes with an average Home Safety Score of D (53/100).
27 of 44 ZIP codes have recorded EPA violations. 15 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
York 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
62.9% of homes in this county were built before 1978. Older plumbing and solder can leach lead into drinking water, especially in the morning.