Maryland's 1st Congressional District
Maryland · MD-01
Maryland's 1st Congressional District is one of 8 U.S. House districts in Maryland, represented in Congress by Andy Harris (Republican). It is home to roughly 781,150 people, with a median age of 41.8. The population is about 72% White. The median household income is $93,230, and 34% of adults 25 and older hold a bachelor’s degree or higher. In the 2024 presidential election it voted solidly Republican (R+17).
Representative
Current U.S. House member (source: house.gov).
Geography
MD-01 is shown in red. Click a neighboring district to open it, or zoom out to explore the country.
By the Polsby-Popper measure, MD-01 is very irregular in shape compared with other districts.
Presidential results
Two-party presidential vote by district (source: The Downballot).
Who lives here
U.S. Census Bureau, American Community Survey (5-year estimates).
Economy & education
U.S. Census Bureau, American Community Survey (5-year estimates).