Dauphin County is a county located in the U.S. state of Pennsylvania. The county seat and the largest city is Harrisburg, Pennsylvania's state capital. The county was created on March 4, 1785, from part of Lancaster County.

Dauphin County is included in the Harrisburg-Carlisle, PA Metropolitan Statistical Area. The county is located in the heart of Pennsylvania and is part of the Susquehanna Valley.

The county government is run by a three-member Board of Commissioners, who are elected every four years. The county is divided into nine magisterial districts, each of which is represented by an elected Magisterial District Judge. The county also has a number of elected row offices, including Sheriff, District Attorney, Clerk of Courts, Prothonotary, Register of Wills, Recorder of Deeds, and Coroner.

The county is served by the Dauphin County Library System, which consists of seven public libraries located throughout the county. The county is also served by the Dauphin County Parks and Recreation Department, which operates a number of parks and recreational facilities throughout the county.

For the most up-to-date and in-depth information, please check the public records links below.