Pennsylvania — 11th District
119th Congress · 106 ZIP codes · Avg score 51/100 · Grade D · Updated 2026-07-19
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-19
ZipCheckup tracks water safety for 106 ZIP codes in Pennsylvania's 11th District: the district earns a grade D (51/100). 617 EPA violations on record, 38 health-based.
Top Contaminants
ZIP Codes in This District
100 ZIP codes tracked in Pennsylvania's 11th District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 17520 | East Petersburg | 67 | C | 3 (1 health) |
| 2 | 17361 | Shrewsbury | 66 | C | 5 |
| 3 | 17363 | Stewartstown | 66 | C | 8 |
| 4 | 17501 | Akron | 66 | C | 5 |
| 5 | 17333 | Hanover | 65 | C | 8 |
| 6 | 17508 | Brownstown | 65 | C | 5 (2 health) |
| 7 | 17517 | Denver | 64 | C | 6 (1 health) |
| 8 | 17540 | Leola | 64 | C | 6 (1 health) |
| 9 | 17551 | Millersville | 64 | C | 3 (1 health) |
| 10 | 17605 | Lancaster | 64 | C | 14 (1 health) |
| 11 | 17349 | New Freedom | 63 | C | 11 |
| 12 | 17538 | Landisville | 62 | C | 4 (1 health) |
| 13 | 17557 | New Holland | 62 | C | 6 |
| 14 | 17332 | Hanover | 61 | C | 8 |
| 15 | 17334 | Hanover | 61 | C | 8 |
| 16 | 17335 | Hanover | 61 | C | 8 |
| 17 | 17563 | Peach Bottom | 61 | C | 2 (1 health) |
| 18 | 17569 | Reinholds | 61 | C | 2 |
| 19 | 19501 | Adamstown | 61 | C | 2 |
| 20 | 17331 | Hanover | 60 | C | 8 |
| 21 | 17552 | Mount Joy | 60 | C | 1 |
| 22 | 17584 | Willow Street | 60 | C | 14 (2 health) |
| 23 | 17022 | Elizabethtown | 59 | C | 12 (1 health) |
| 24 | 17608 | Lancaster | 59 | C | 14 (1 health) |
| 25 | 17362 | Spring Grove | 58 | C | 5 |
| 26 | 17407 | York | 58 | C | 22 (1 health) |
| 27 | 17573 | Lancaster | 58 | C | 14 (1 health) |
| 28 | 17604 | Lancaster | 58 | C | 14 (1 health) |
| 29 | 17606 | Lancaster | 58 | C | 14 (1 health) |
| 30 | 17607 | Lancaster | 58 | C | 14 (1 health) |
| 31 | 17611 | Lancaster | 58 | C | 14 (1 health) |
| 32 | 17622 | Lancaster | 58 | C | 14 (1 health) |
| 33 | 17699 | Lancaster | 58 | C | 14 (1 health) |
| 34 | 17309 | Brogue | 57 | C | 0 |
| 35 | 17366 | Windsor | 57 | C | 0 |
| 36 | 17368 | Wrightsville | 57 | C | 4 |
| 37 | 17512 | Columbia | 56 | C | 21 (1 health) |
| 38 | 17578 | Stevens | 56 | C | 6 (1 health) |
| 39 | 17502 | Bainbridge | 55 | C | 4 |
| 40 | 17522 | Ephrata | 55 | C | 7 |
| 41 | 17314 | Delta | 54 | D | 7 |
| 42 | 17527 | Gap | 54 | D | 13 |
| 43 | 17532 | Holtwood | 54 | D | 8 |
| 44 | 17575 | Silver Spring | 54 | D | 2 |
| 45 | 17601 | Lancaster | 54 | D | 14 (1 health) |
| 46 | 17603 | Lancaster | 54 | D | 14 (1 health) |
| 47 | 17329 | Glenville | 53 | D | 0 |
| 48 | 17352 | New Park | 53 | D | 0 |
| 49 | 17355 | Railroad | 53 | D | 0 |
| 50 | 17405 | York | 53 | D | 22 (1 health) |
Overview
Pennsylvania's 11th District encompasses 106 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is D (51/100).
617 EPA violations have been recorded across this district's water systems. 38 are health-based violations. About 61% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Contaminant 0700 - 104 violations
- Surface Water Treatment Rule - 82 violations
- Haloacetic Acids (HAA5) - 74 violations
- Revised Total Coliform Rule - 71 violations
- Consumer Confidence Report Rule - 51 violations
Housing Context
Homes in this district were built on average around 1969 (~57 years old). Older homes may have lead pipes or solder - consider a water filter if your home predates 1986.
Lead Alert: 6 ZIP codes in this district exceed the EPA action level for lead. Consider using a certified lead-removal filter.
Data Sources
- Water quality violations: EPA Safe Drinking Water Information System (SDWIS)
- Congressional district boundaries: U.S. Census Bureau, 119th Congress
- Housing age: U.S. Census Bureau American Community Survey
Updated daily. Data covers 106 ZIP codes in Pennsylvania's 11th District.