Iowa's 1st Congressional District

Iowa · IA-01

Iowa's 1st Congressional District is one of 4 U.S. House districts in Iowa, represented in Congress by Mariannette Miller-Meeks (Republican). It is home to roughly 798,572 people, with a median age of 38.8. The population is about 84% White. The median household income is $72,467, and 32% of adults 25 and older hold a bachelor’s degree or higher. In the 2024 presidential election it voted leaning Republican (R+8).

Representative

Mariannette Miller-Meeks Republican

Current U.S. House member (source: house.gov).

Geography

IA-01 is shown in red. Click a neighboring district to open it, or zoom out to explore the country.

10,982 mi²

Land area

73/mi²

Pop. density

0.29

Compactness (Polsby-Popper)

By the Polsby-Popper measure, IA-01 is irregular in shape compared with other districts.

Presidential results

R+8

2024 margin

45% / 54%

2024 Dem / Rep

R+3

2020 margin

Two-party presidential vote by district (source: The Downballot).

Who lives here

84% White4% Black6% Hispanic2% Asian4% Other

798,572

Population

38.8

Median age

22.2%

Under 18

17.9%

Age 65+

4.6%

Foreign-born

6.9%

Veterans

U.S. Census Bureau, American Community Survey (5-year estimates).

Economy & education

$72,467

Median household income

$200,438

Median home value

$944

Median rent

32%

Bachelor's or higher

71.2%

Homeownership

11.9%

Poverty rate

22.2 min

Mean commute

4.7%

Uninsured

U.S. Census Bureau, American Community Survey (5-year estimates).

Neighboring districts

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