Dauphin County
| Dauphin County, Pennsylvania | |
|---|---|
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 Location in the U.S. state of Pennsylvania |
|
 Pennsylvania's location in the U.S. |
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| Founded | March 4, 1785 |
| Named for | Louis Joseph, Dauphin of France |
| Seat | Harrisburg |
| Largest city | Harrisburg |
| Area | |
| • Total | 558 sq mi (1,445 km2) |
| • Land | 525 sq mi (1,360 km2) |
| • Water | 33 sq mi (85 km2), 5.9% |
| Population (est.) | |
| • (2015) | 272,983 |
| • Density | 520/sq mi (201/km²) |
| Congressional districts | 4th, 11th, 15th |
| Time zone | Eastern: UTC-5/-4 |
| Website | www |
| Footnotes: | |
| Designated | December 9, 1982 |
Dauphin County /ˈdɔːfɪn/ is a county in the U.S. state of Pennsylvania. As of the 2010 census, the population was 268,100. The county seat and the largest city is Harrisburg,Pennsylvania's state capital and tenth largest city. The county was created ("erected") on March 4, 1785, from part of Lancaster County and was named after Louis-Joseph, Dauphin of France, the first son of Louis XVI.
Dauphin County is included in the Harrisburg-Carlisle, PA Metropolitan Statistical Area.
Located within the county is Three Mile Island Nuclear Generating Station, site of the 1979 nuclear core meltdown.
According to the U.S. Census Bureau, the county has a total area of 558 square miles (1,450 km2), of which 525 square miles (1,360 km2) is land and 33 square miles (85 km2) (5.9%) is water. The county is bound to its western border by the Susquehanna River.
As of the 2010 census, the county was 72.7% White, 18.0% Black or African American, 0.2% Native American, 3.2% Asian, and 3.1% were two or more races. 7.0% of the population were of Hispanic or Latino ancestry [1].
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