Lawrence County
Also known as Lawrence County, Pennsylvania, Lawrence County, PA
county in Pennsylvania, United States
Key facts
- Country
- United States
- State
- Pennsylvania
- Founded
- March 20, 1849
- Named after
- USS Lawrence
- Seat
- New Castle
- Largest city
- New Castle
- Total
- 363 sq mi (940 km )
- Land
- 358 sq mi (930 km )
- Water
- 4.5 sq mi (12 km ) 1.3%
- Estimate 2025
- 83,911
- Density
- 235/sq mi (91/km )
- Time zone
- UTC−5 ( Eastern )
- Summer dst
- UTC−4 ( EDT )
Article
Lawrence County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 86,070. The county seat and largest city is New Castle.
The county was created on March 20, 1849, from parts of Beaver and Mercer counties. The county is part of the Greater Pittsburgh region of the commonwealth.