Lehigh County, Pennsylvania demographics
Lehigh County, Pennsylvania (county FIPS 42077) has a median household income of $80,079 (±$1,728) and a total population of 378,792 in the American Community Survey 5-year estimates for 2020-2024.
Margins of error are at the 90% confidence level. The figures describe 2020-2024 (dollars in 2024 dollars), not the present. 36 ZIP Code Tabulation Areas overlap the county (Census 2020).
Data as of Oct 22, 2026 (Olympus publication) · Markdown version
- Values are ACS 5-year estimates for 2020-2024 (dollars in 2024 dollars), not current figures.
- ZCTA-county overlaps come from the Census 2020 relationship file and use 2020 counties, by land area; Connecticut uses its legacy counties, not the planning regions in ACS 2022+.
ACS 5-year estimates, 2020-2024
Census American Community Survey 5-year estimates for 2020-2024, with 90% margins of error as published by the Census Bureau.
| Metric | Estimate | Margin of error (90%) | ACS table |
|---|---|---|---|
| Total population | 378,792 | none (controlled estimate) | B01003 |
| Median age | 39.6 years | ±0.2 years | B01002 |
| Households | 144,386 | ±695 | B11001 |
| Median household income (inflation-adjusted to the final ACS year) | $80,079 | ±$1,728 | B19013 |
| Median value of owner-occupied housing units | $300,400 | ±$5,846 | B25077 |
| Median gross rent | $1,383 | ±$27 | B25064 |
| Owner-occupied share of occupied housing units | 65.6% | none (derived from several estimates) | B25003 (derived) |
| Renter-occupied share of occupied housing units | 34.4% | none (derived from several estimates) | B25003 (derived) |
| High school graduate or higher (age 25+) | 90.5% | none (derived from several estimates) | B15003 (derived) |
| Bachelor's degree or higher (age 25+) | 34.2% | none (derived from several estimates) | B15003 (derived) |
| Share of people below the poverty level | 11.6% | none (derived from several estimates) | B17001 (derived) |
| Unemployment rate (civilian labor force) | 5.9% | none (derived from several estimates) | B23025 (derived) |
- Dollar values are in 2024 inflation-adjusted dollars.
- Percentages' margins of error are in percentage points (pp).
Geography
| Measure | Value |
|---|---|
| County FIPS | 42077 |
| Land area | 345.34 sq mi |
| Water area | 2.88 sq mi |
| Population density | 1,097 per sq mi of land |
| Geography vintage | 2024 Gazetteer |
ZIP codes (ZCTAs) in this county
ZCTAs that overlap the county in the Census 2020 ZCTA to county relationship file, largest share of the county's land first.
| ZCTA | Share of county land | Share of ZCTA land | County is the ZCTA's primary county |
|---|---|---|---|
| 18066 | 12.8% | 100% | Yes |
| 18080 | 8.7% | 100% | Yes |
| 18104 | 6.6% | 100% | Yes |
| 18053 | 5.3% | 100% | Yes |
| 18036 | 5.3% | 62.3% | Yes |
| 19529 | 5.3% | 33.9% | |
| 18103 | 5% | 100% | Yes |
| 18078 | 4.5% | 100% | Yes |
| 18049 | 4.3% | 100% | Yes |
| 18062 | 4.2% | 69.7% | Yes |
| 18069 | 4.1% | 100% | Yes |
| 18092 | 4% | 92.5% | Yes |
| 18031 | 4% | 98.7% | Yes |
| 18052 | 3.7% | 100% | Yes |
| 18034 | 3.2% | 100% | Yes |
| 18015 | 2.3% | 34.5% | |
| 18051 | 2.3% | 100% | Yes |
| 18106 | 2.3% | 100% | Yes |
| 18109 | 2.3% | 94.9% | Yes |
| 18037 | 2.2% | 100% | Yes |
| 19530 | 1.5% | 9.6% | |
| 18011 | 1.1% | 23.1% | |
| 18041 | 1% | 28% | |
| 18018 | 1% | 66.3% | Yes |
| 18102 | 0.9% | 100% | Yes |
| 18059 | 0.5% | 100% | Yes |
| 18032 | 0.4% | 64.3% | Yes |
| 19539 | 0.3% | 5.2% | |
| 18087 | 0.3% | 100% | Yes |
| 18017 | 0.3% | 5.2% | |
| 18951 | 0.1% | 0.4% | |
| 18101 | 0.1% | 100% | Yes |
| 18079 | 0.1% | 100% | Yes |
| 18065 | 0% | 100% | Yes |
| 18046 | 0% | 100% | Yes |
| 18195 | 0% | 100% | Yes |
Sources
- American Community Survey 5-year estimates (Census Data API) — U.S. Census Bureau. ACS 5-year 2020-2024 (release acs5-2024:county), source date 2025-09-02. https://api.census.gov/data/2024/acs/acs5?get=NAME,B01003_001E,B01003_001M,B01002_001E,B01002_001M,B11001_001E,B11001_001M,B19013_001E,B19013_001M,B25077_001E,B25077_001M,B25064_001E,B25064_001M,B25003_001E,B25003_002E,B25003_003E,B15003_001E,B15003_017E,B15003_018E,B15003_019E,B15003_020E,B15003_021E,B15003_022E,B15003_023E,B15003_024E,B15003_025E,B17001_001E,B17001_002E,B23025_003E,B23025_005E&for=county:077&in=state:42
- Published by Olympus on Oct 22, 2026.
- Source data: U.S. Census Bureau. Works of the U.S. government are not subject to copyright in the United States.
- This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
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curl -s "https://api.olympus.new-odyssey.com/v1/geo-demographics/counties/42077" -H "X-API-Key: $OLYMPUS_API_KEY"get_us_demographics {"county_fips":"42077"}