Northumberland County | |
---|---|
Coordinates: 40°51′N 76°43′W / 40.85°N 76.71°W | |
Country | United States |
State | Pennsylvania |
Founded | March 21, 1772 |
Named for | Northumberland |
Seat | Sunbury |
Largest city | Sunbury |
Area | |
• Total | 478 sq mi (1,240 km2) |
• Land | 458 sq mi (1,190 km2) |
• Water | 19 sq mi (50 km2) 4.0% |
Population (2020) | |
• Total | 91,647 |
• Density | 204/sq mi (79/km2) |
Time zone | UTC−5 (Eastern) |
• Summer (DST) | UTC−4 (EDT) |
Congressional district | 9th |
Website | www |
Northumberland County is a county in the U.S. state of Pennsylvania. As of the 2020 census, the population was 91,647.[1] Its county seat is Sunbury.[2] The county was created on March 21, 1772 from parts of Lancaster, Berks, Bedford, Cumberland, and Northampton counties and is named after the English county of Northumberland.