Iowa's 3rd Congressional District
Iowa · IA-03
Iowa's 3rd Congressional District is one of 4 U.S. House districts in Iowa, represented in Congress by Zachary Nunn (Republican). It is home to roughly 806,699 people, with a median age of 37.3. The population is about 79% White. The median household income is $79,023, and 36% of adults 25 and older hold a bachelor’s degree or higher. In the 2024 presidential election the district was highly competitive (R+4).
Representative
Current U.S. House member (source: house.gov).
Geography
IA-03 is shown in red. Click a neighboring district to open it, or zoom out to explore the country.
By the Polsby-Popper measure, IA-03 is fairly compact 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).