Lehigh County, Pennsylvania
36 ZIP codes · Avg score 51/100 · Grade D
ZipCheckup grade for Lehigh County: D.
Federal records show several conditions worth reviewing.
Low as it is, the grade for Lehigh County is a summary of data, not a tap-water measurement; 36 ZIP codes are listed.
How Lehigh County Compares
How Lehigh County Compares
Lehigh County scores 6 points below the Pennsylvania state average (57/100) and 22 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
ZIP Code Risk Map
Water Quality Map: Lehigh County, Pennsylvania
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Modeled additional annual cost estimate per homeowner: $4,177, largest modeled factor: Sea Level
67% of homes built before 1980 (lead paint was banned for residential use in 1978)
Infrastructure Overview
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $4,177
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
151,971 housing units in Lehigh 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 Lehigh County
Modeled remediation costs in Lehigh County can be compared with the median property value; actual costs vary by property.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Water systems mapped to Lehigh County ZIP codes
8 community water systems mapped to Lehigh County ZIP codes; EPA may list more systems serving the county.
- D
- D
- C
- D
- D
- F
Show all 8 water systems
- D
- D
27 water systems mapped to Lehigh County ZIP codes in our data; EPA may list more systems serving the county.
Systems with the most violations in Lehigh County
5 water systems with violations in EPA records.
- F
- C
- C
- C
- D
All ZIP Codes in Lehigh County
36 ZIP codes tracked in Lehigh County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 18018 | Bethlehem | 65 | C | 6 | $224K |
| 2 | 18078 | Schnecksville | 65 | C | 5 | $361K |
| 3 | 18034 | Center Valley | 64 | C | 7 | $398K |
| 4 | 18069 | Orefield | 62 | C | 15 | $407K |
| 5 | 18036 | Coopersburg | 61 | C | 13 | $382K |
| 6 | 18080 | Slatington | 59 | C | 22 (1 health) | $254K |
| 7 | 19539 | Mertztown | 58 | C | 24 (1 health) | $264K |
| 8 | 18037 | Coplay | 49 | D | 3 | $241K |
| 9 | 18101 | Allentown | 49 | D | 4 | $154K |
| 10 | 18052 | Whitehall | 48 | D | 7 | $247K |
| 11 | 18109 | Allentown | 48 | D | 7 | $180K |
| 12 | 18051 | Fogelsville | 47 | D | 9 | $444K |
| 13 | 18106 | Allentown | 47 | D | 9 | $361K |
| 14 | 18102 | Allentown | 46 | D | 11 | $147K |
| 15 | 18104 | Allentown | 43 | D | 22 | $297K |
| 16 | 18103 | Allentown | 41 | D | 28 | $242K |
| 17 | 18049 | Emmaus | 33 | F | 113 (1 health) | $283K |
| 18 | 18062 | Macungie | 33 | F | 108 | $364K |
| 19 | 18001 | Lehigh Valley | — | — | — | |
| 20 | 18031 | Breinigsville | — | — | 12 | $359K |
| 21 | 18046 | East Texas | — | — | 9 | — |
| 22 | 18053 | Germansville | — | — | $294K | |
| 23 | 18059 | Laurys Station | — | — | 3 | $421K |
| 24 | 18060 | Limeport | — | — | — | |
| 25 | 18065 | Neffs | — | — | 1 | — |
| 26 | 18066 | New Tripoli | — | — | 9 | $323K |
| 27 | 18068 | Old Zionsville | — | — | — | |
| 28 | 18079 | Slatedale | — | — | $117K | |
| 29 | 18087 | Trexlertown | — | — | 9 | $339K |
| 30 | 18092 | Zionsville | — | — | 93 | $390K |
| 31 | 18098 | Emmaus | — | — | — | |
| 32 | 18099 | Emmaus | — | — | — | |
| 33 | 18105 | Allentown | — | — | — | |
| 34 | 18175 | Allentown | — | — | — | |
| 35 | 18195 | Allentown | — | — | — | |
| 36 | 19529 | Kempton | — | — | $346K |
Recommended Buyer Guides for Lehigh County
The guides listed here are chosen from this county's data, and the short note beside each one says why it made the list.
- Water Filters Certified for PFAS Reduction — PFAS detected in 3 ZIP codes
- Best Lead Paint Test Kits — 67% of homes built before 1980
- 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
Deep Dive Reports
Detailed analysis for Lehigh County, Pennsylvania
Overview
Lehigh County in Pennsylvania covers 36 tracked ZIP records with an average Home Safety Score of D (51/100) across 18 scored records.
25 of 25 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 3 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.
What You Can Do
Lehigh County has an average Home Safety grade of D across its scored ZIP records. Here are steps to protect your household.
Test your tap water
Ask a certified laboratory which tests it offers for lead, bacteria, and other contaminants relevant to your home; a $20-$50 kit may cover only certain contaminants.
Consider a certified water filter
NSF/ANSI-certified filters reduce the specific contaminants listed on their certification. 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 reports monitored contaminants detected in the utility's water and related compliance information.
Check for lead in your home
67% of homes in this county were built before 1980. Older plumbing and solder can leach lead into drinking water, especially after water sits in the pipes.