County maps of Pennsylvania can be found on the U. S. Census Bureau and Pennsylvania Department of Transportation websites and at mapofUS.org. Each website includes links to different features, functions and information resources.
Each county on the U. S. Census Bureau website map of Pennsylvania is a clickable link to a page that provides detailed demographic information from the 2010 U. S. Census, including general population figures and percentage increase or decrease; ethnic composition; and information about education, income, housing, language and transit time. Also included are geographic and economic facts about each county.
Selecting individual counties on the PennDOT website county map takes users to detailed, downloadable, high-resolution, PDF-format maps of each county. These maps show all roads, landmarks, towns and cities, and geographical features. Zooming in provides a more detailed view.
The Pennsylvania county map on MapofUS.org is a high-resolution, 1600x1132-pixel, 72-dpi, JPG image that can be downloaded and printed for reference. This map shows both the county borders and county seats. The MapofUS.org Pennsylvania page includes other interesting features, such as an interactive map showing Pennsylvania county formation history from 1673 to 1878, along with links to other antique and historical maps of Pennsylvania and genealogical research resources for each individual county.