Lehigh County
Sign in to savecounty in Pennsylvania, United States of America
Key facts
- Country
- United States
- State
- Pennsylvania
- Founded
- March 6, 1812
- Named after
- Lehigh River
- Seat
- Allentown
- Largest city
- Allentown
- Total
- 348 sq mi (900 km )
- Land
- 345 sq mi (890 km )
- Water
- 3.1 sq mi (8.0 km ) 0.9%
- Estimate 2025
- 384,383
- Density
- 1,046/sq mi (404/km )
- Time zone
- UTC−5 ( Eastern )
- Summer dst
- UTC−4 ( EDT )
- Congressional district
- 7th
- Website
- www .lehighcounty .org
via Wikipedia infobox
Article
Lehigh County (/ˈliːhaɪ/; Pennsylvania Dutch: Lechaa Kaundi) is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the county's population was 374,557. Its county seat is Allentown, the state's third-largest city after Philadelphia and Pittsburgh.
Along with Northampton County to its east, the two counties combine to form the Lehigh Valley region of eastern Pennsylvania, the third-largest metropolitan area of Pennsylvania with a population of 861,889 as of 2020. Lehigh County is one of the fastest-growing counties in Pennsylvania and the more highly populated of the two counties. Both counties are part of the Philadelphia television market, the fifth-largest television market in the nation.