Lehigh County's 2026 population is estimated at 395,221, reflecting a 1.23% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Lehigh County is the 10th largest county in Pennsylvania. The 2010 population was 350,008 and has grown 12.92% since 2010.
Data after 2023 is projected based on recent change
Overall: 39.6 years
Female: 40.5 years
Male: 38.8 years
There are 294,294 adults, (67,008 of whom are seniors) in Lehigh County.
Female: 192,398 (50.8%)
Male: 186,394 (49.2%)
The racial composition of Lehigh County includes 62.34% White, 12.1% other race, 6.46% Black or African American, 3.57% Asian, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 236,150 | 62.34% |
| Two or more races | 56,971 | 15.04% |
| Other race | 45,824 | 12.1% |
| Black or African American | 24,476 | 6.46% |
| Asian | 13,517 | 3.57% |
| Native American | 1,801 | 0.48% |
| Native Hawaiian or Pacific Islander | 53 | 0.01% |
Lehigh County 's average per capita income is $50,742. Household income levels show a median of $80,079. The poverty rate stands at 11.57%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $123,191 | $154,808 |
| Families | $97,943 | $130,894 |
| Households | $80,079 | $110,753 |
| Non Families | $47,252 | $63,516 |
Average Income
Median Household Income
Poverty Rate