Karns City, Pennsylvania
Karns City, Pennsylvania  | |
|---|---|
Calumet Penreco oil refinery on Petrolia Street  | |
Location of Karns City in Butler County, Pennsylvania.  | |
| Coordinates: 40°59′42″N 79°43′33″W / 40.99500°N 79.72583°W | |
| Country | United States | 
| State | Pennsylvania | 
| County | Butler | 
| Settled | 1874 | 
| Incorporated | 1875 | 
| Government | |
| • Type | Borough Council | 
| Area | |
 • Total  | 0.36 sq mi (0.94 km2) | 
| • Land | 0.36 sq mi (0.94 km2) | 
| • Water | 0.00 sq mi (0.00 km2) | 
| Population  (2020)  | |
 • Total  | 175 | 
| • Density | 482.09/sq mi (186.32/km2) | 
| Time zone | UTC-5 (Eastern (EST)) | 
| • Summer (DST) | UTC-4 (EDT) | 
| Zip code | 16041  | 
| FIPS code | 42-38768 | 
Karns City is a borough that is located in Butler County, Pennsylvania, United States. The population was 209 at the time of the 2010 census.