Lawrence County, Pennsylvania
25 ZIP codes · Avg score 65/100 · Grade C · Updated 2026-06-03
Water safety in Lawrence County is uneven — some of its 25 ZIP codes meet standards cleanly while others carry documented violations.
How Lawrence County Compares
How Lawrence County Compares
Lawrence County scores 10 points above the Pennsylvania state average (55/100) and 3 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Lawrence 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: $1,209, driven primarily by flood
Infrastructure: 0.466% avg pipe failure probability, 75% of ZIPs at high risk
81.3% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
→ Stable trendEPA violation counts by year across Lawrence County water systems. Health-based shown in red, total in blue.
Peak year: 2022 with 26 violations. Past 5 years: 28 total (28 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: $1,209
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
49,539 housing units in Lawrence 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 Lawrence County
Remediation costs are relatively manageable for most homeowners in Lawrence 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 Lawrence County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Pa Amer Water Company New Castle | 43,279 | 12 |
| 2 | Pa Amer Water Company Ellwood Cty | 17,200 | 12 |
| 3 | Pa American Water Company Butler | 43,286 | 6 |
| 4 | Pa American Water Company-indiana D | 22,360 | 6 |
| 5 | Pa American Water Company Clarion | 16,600 | 6 |
17 total water systems serve Lawrence County.
All ZIP Codes in Lawrence County
25 ZIP codes tracked in Lawrence County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 16102 | New Castle | 83 | B | 1 | $98K |
| 2 | 16103 | New Castle | 83 | B | 1 | — |
| 3 | 16107 | New Castle | 83 | B | 1 | — |
| 4 | 16108 | New Castle | 83 | B | 1 | — |
| 5 | 16172 | New Wilmington | 82 | B | 3 | — |
| 6 | 16105 | New Castle | 78 | B | 1 | $175K |
| 7 | 16101 | New Castle | 73 | B | 1 | $110K |
| 8 | 16157 | Wampum | 72 | B | 6 | $151K |
| 9 | 16112 | Bessemer | 71 | B | 4 (1 health) | $141K |
| 10 | 15616 | Armbrust | 63 | C | 0 | $312K |
| 11 | 15639 | Hunker | 63 | C | 0 | $203K |
| 12 | 15666 | Mount Pleasant | 63 | C | 0 | $155K |
| 13 | 15672 | New Stanton | 63 | C | 0 | $236K |
| 14 | 15688 | Tarrs | 63 | C | 0 | $89K |
| 15 | 16132 | Hillsville | 63 | C | 0 | $115K |
| 16 | 15679 | Ruffs Dale | 55 | C | 0 | $188K |
| 17 | 16116 | Edinburg | 55 | C | 0 | $123K |
| 18 | 16141 | New Galilee | 55 | C | 0 | $145K |
| 19 | 15612 | Alverton | 53 | D | 0 | $127K |
| 20 | 15621 | Calumet | 53 | D | 0 | — |
| 21 | 15674 | Norvelt | 53 | D | 0 | $183K |
| 22 | 15689 | United | 53 | D | 0 | — |
| 23 | 16136 | Koppel | 53 | D | 0 | $102K |
| 24 | 16155 | Villa Maria | 53 | D | 0 | — |
| 25 | 16117 | Ellwood City | 45 | D | 0 | $143K |
Recommended Buyer Guides for Lawrence County
Retailer arrangements don't shape what appears here — the selection logic is independent, filtered against EPA detections and the federal hazard data on file for this county.
- Best Lead Paint Test Kits — 81.3% of homes built before 1978
- 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 Lawrence County, Pennsylvania
Overview
Lawrence County in Pennsylvania covers 25 ZIP codes with an average Home Safety Score of C (65/100).
9 of 25 ZIP codes have recorded EPA violations. 1 health-based violation 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.