Dauphin County, Pennsylvania
43 ZIP codes · Avg score 57/100 · Grade C · Updated
ZipCheckup grade for Dauphin County: C.
A mixed picture - some signals here are worth your attention.
Within Dauphin County, safety data across 43 ZIP codes suggests a fair but uneven system - violations are present and worth checking at the ZIP level.
How Dauphin County Compares
How Dauphin County Compares
Dauphin County scores 0 points above the Pennsylvania state average (57/100) and 16 points below the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:
ZIP Code Risk Map
Water Quality Map: Dauphin 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: $3,072, driven primarily by flood
77.9% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↑ Worsening trendEPA violation counts by year across Dauphin County water systems. Health-based shown in red, total in blue.
Peak year: 2025 with 11 violations. Past 5 years: 24 total (24 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
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $3,072
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
126,584 housing units in Dauphin 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 Dauphin County
Remediation costs are relatively manageable for most homeowners in Dauphin 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 serving Dauphin County
8 community water systems serving Dauphin County.
- C
- C
- D
- D
- C
- D
Show all 8 water systems
- C
15 total water systems serve Dauphin County.
Systems with the most violations in Dauphin County
5 water systems with recorded EPA violations.
- D
All ZIP Codes in Dauphin County
43 ZIP codes tracked in Dauphin County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 17113 | Harrisburg | 66 | C | 3 | $141K |
| 2 | 17978 | Spring Glen | 65 | C | 5 | $233K |
| 3 | 17101 | Harrisburg | 64 | C | 7 | — |
| 4 | 17102 | Harrisburg | 64 | C | 7 | $173K |
| 5 | 17103 | Harrisburg | 64 | C | 7 | $113K |
| 6 | 17104 | Harrisburg | 64 | C | 10 | $102K |
| 7 | 17110 | Harrisburg | 64 | C | 10 | $206K |
| 8 | 17120 | Harrisburg | 64 | C | 7 | — |
| 9 | 17033 | Hershey | 49 | D | 3 | $341K |
| 10 | 17036 | Hummelstown | 49 | D | 3 | $317K |
| 11 | 17057 | Middletown | 49 | D | 5 | $187K |
| 12 | 17112 | Harrisburg | 49 | D | 3 | $290K |
| 13 | 17109 | Harrisburg | 47 | D | 10 | $203K |
| 14 | 17111 | Harrisburg | 47 | D | 10 | $226K |
| 15 | 17061 | Millersburg | 45 | D | 15 | $166K |
| 16 | 17005 | Berrysburg | — | — | $144K | |
| 17 | 17017 | Dalmatia | — | — | 13 | $200K |
| 18 | 17018 | Dauphin | — | — | $226K | |
| 19 | 17023 | Elizabethville | — | — | 27 | $200K |
| 20 | 17028 | Grantville | — | — | $262K | |
| 21 | 17030 | Gratz | — | — | $235K | |
| 22 | 17032 | Halifax | — | — | 3 | $212K |
| 23 | 17034 | Highspire | — | — | 3 | $120K |
| 24 | 17048 | Lykens | — | — | 69 (6 health) | $136K |
| 25 | 17097 | Wiconisco | — | — | 42 (6 health) | $81K |
| 26 | 17098 | Williamstown | — | — | 14 | $113K |
| 27 | 17105 | Harrisburg | — | — | — | |
| 28 | 17106 | Harrisburg | — | — | — | |
| 29 | 17107 | Harrisburg | — | — | — | |
| 30 | 17108 | Harrisburg | — | — | — | |
| 31 | 17121 | Harrisburg | — | — | — | |
| 32 | 17122 | Harrisburg | — | — | — | |
| 33 | 17123 | Harrisburg | — | — | — | |
| 34 | 17124 | Harrisburg | — | — | — | |
| 35 | 17125 | Harrisburg | — | — | — | |
| 36 | 17126 | Harrisburg | — | — | — | |
| 37 | 17127 | Harrisburg | — | — | — | |
| 38 | 17128 | Harrisburg | — | — | — | |
| 39 | 17129 | Harrisburg | — | — | — | |
| 40 | 17130 | Harrisburg | — | — | — | |
| 41 | 17140 | Harrisburg | — | — | — | |
| 42 | 17177 | Harrisburg | — | — | — | |
| 43 | 18917 | Dublin | — | — | 65 | $356K |
Recommended Buyer Guides for Dauphin 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 — 77.9% 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 Dauphin County, Pennsylvania
Overview
Dauphin County in Pennsylvania covers 43 tracked ZIP records with an average Home Safety Score of C (57/100) across 15 scored records.
23 of 23 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 6 health-based violations appear in the available health breakdown.
← Back to Pennsylvania Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.