Lehigh County, Pennsylvania Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 10th-largest in Pennsylvania
The population of Lehigh County, Pennsylvania is 375,408 as of the 2023 American Community Survey, making it the 10th-largest county in Pennsylvania. The median household income is $77,493, the median home value is $276,100, and the median age is 39.3.
The population of Lehigh County has grown 10.2% since 2010 (350,008 → 385,655), a +0.70% annualized rate.
375,408
Population
+0.70%
Annual growth
1087
People / sq mi
$77,493
Median Income
$276,100
Median Home Value
Lehigh County covers 345 sq mi of land at 1087.1 people per square mile.
About Lehigh County, PA
Lehigh County is a county in Pennsylvania with a population of 375,408. It ranks #10 among counties in Pennsylvania by population. The median age is 39.3, in line with the national median. The population is 49.2% male and 50.8% female.
The median household income in Lehigh County is $77,493, near the US median of $74,580. 8.2% of residents live below the federal poverty level. Home values sit at a median of $276,100, with monthly rent averaging $1,326. The homeownership rate of 65.2% is close to the national rate of 64.8%.
Educational attainment in Lehigh County reflects 33.4% of adults 25 and older holding a bachelor's degree or higher, near the national average of 34.3%. Roughly 12.1% of workers primarily work from home, similar to the national work-from-home rate of 14.2%. The average commute is 25.1 minutes each way.
Lehigh County Population History (2010-2024)
The county of Lehigh County had a population of 350,008 in 2010 and 385,655 in 2024, a 10.2% growth over 14 years. The peak was 385,655 in 2024. Average annual growth rate: 0.70%.
385,655
Population (2024)
350,008
Population (2010)
385,655
Peak (2024)
0.70%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 350,008 |
| 2011 | 353,317 |
| 2012 | 354,673 |
| 2013 | 355,273 |
| 2014 | 357,591 |
| 2015 | 359,689 |
| 2016 | 362,357 |
| 2017 | 365,772 |
| 2018 | 368,452 |
| 2019 | 369,308 |
| 2020 | 374,493 |
| 2021 | 375,922 |
| 2022 | 377,019 |
| 2023 | 380,872 |
| 2024 | 385,655 |
Race & Ethnicity
| White | 66.8% |
| Black or African American | 6.9% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.2% |
| Two or More Races | 0.0% |
Age & Sex
39.3
Median Age
50.8%
Female
49.2%
Male
17.4%
Age 65+
Age Distribution
Children (under 15): 18.5% · Seniors (65+): 17.4%
Income & Poverty
| Median household income | $77,493+$1,412 vs state |
| Mean household income | $107,564 |
| Per-capita income | $41,804 |
| Poverty rate | 8.2%+0.1% vs state |
| Unemployment rate | 3.6% |
| Employment-to-population | 61.0% |
Top Industries by Employment
The largest employment sector in Lehigh County is professional & business services, accounting for 26.2% of workers.
How residents commute
1.5%
Drive alone
2.2%
Carpool
75.1%
Public transit
12.1%
Work from home
25.1 min
Avg commute
Housing
$276,100+$35,600 vs state
Median home value
$1,326
Median rent
65.2%
Homeownership rate
150,547
Total housing units
95.3%
Occupied
4.7%
Vacant
34.8%
Renter-occupied
Social & access
93.7%
With health insurance
93.9%
With broadband internet
22.1%
Foreign-born
5.8%
Veterans (18+)
13.1%
With a disability
74.6%
Speak language other than English at home
Education
90.3%
High School+
33.4%
Bachelor's+
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Common questions about Lehigh County, PA
Frequently Asked Questions
Lehigh County, Pennsylvania has a population of 375,408 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 10th-largest county in Pennsylvania. Population density is 1087 people per square mile.
The population of Lehigh County has grown 10.2% since 2010 (350,008 → 385,655), a +0.70% annualized rate.
The median household income in Lehigh County, Pennsylvania is $77,493, with mean (average) household income of $107,564 and per-capita income of $41,804. 8.2% of residents live below the federal poverty level.
In Lehigh County, the largest racial and ethnic groups are White (66.8%), Black or African American (6.9%), Hispanic or Latino (1.2%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Lehigh County, Pennsylvania is 39.3 years. Residents are 50.8% female and 49.2% male.
The median home value in Lehigh County is $276,100 and median monthly rent is $1,326. 65.2% of occupied housing units are owner-occupied. The county has 150,547 total housing units, 4.7% of which are vacant.
The largest employment sector in Lehigh County, Pennsylvania is professional, scientific, and management services, employing 26.2% of workers. The unemployment rate is 3.6%.
Philadelphia is among the largest cities associated with Lehigh County, Pennsylvania, with a population of 1,582,432.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.