Pennsylvania's 12th Congressional District
Pennsylvania · PA-12
Pennsylvania's 12th Congressional District is one of 17 U.S. House districts in Pennsylvania, represented in Congress by Summer Lee (Democrat). It is home to roughly 761,727 people, with a median age of 39.5. The population is about 74% White. The median household income is $70,377, and 41% of adults 25 and older hold a bachelor’s degree or higher. In the 2024 presidential election it voted solidly Democratic (D+19).
Representative
Current U.S. House member (source: house.gov).
Geography
PA-12 is shown in red. Click a neighboring district to open it, or zoom out to explore the country.
Covering 433 square miles, PA-12 is the 327th-largest of the 435 congressional districts by land area. With about 1,759 residents per square mile, it is a largely suburban district. Its shape is irregular: the district's Polsby-Popper score of 0.25 ranks 258th of 435 nationally, where 1st is the most compact.
Presidential results
In the 2024 presidential election, 59% of PA-12 voters backed Kamala Harris and 40% Donald Trump — a D+19 margin. That is a 1.0-point shift toward the Republicans from 2020, when the district voted D+20.
Two-party presidential vote by district (source: The Downballot).
Who lives here
The median resident of the district is 39.5 years old; 18% of residents are under 18 and 19.2% are 65 or older. About 6.2% of residents were born outside the United States, and 8% speak a language other than English at home.
U.S. Census Bureau, American Community Survey (5-year estimates).
Economy & education
At $70,377, the district's median household income ranks 286th of 435 districts nationwide. The typical owner-occupied home is worth $194,325, and the median rent is $1,111 a month. 13.7% of residents live below the poverty line, and workers average a 28.5-minute commute (18.3% work from home).
U.S. Census Bureau, American Community Survey (5-year estimates).