Marion, Iowa Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Marion, Iowa is 41,690 as of the 2023 American Community Survey, making it the 13th-largest city in Iowa. The median household income is $87,105, the median home value is $230,800, and the median age is 40.4.
The population has grown 20.6% since 2010 (35,269 → 42,542).
41,690
Population
2316
People / sq mi
$87,105
Median Income
$230,800
Median Home Value
Marion covers 18.0 sq mi of land at 2316 people per square mile.
About Marion, IA
Marion is a city in Iowa with a population of 41,690. It ranks #13 among cities in Iowa by population. The median age is 40.4, older than the national median. The population is 48.1% male and 51.9% female.
The median household income in Marion is $87,105, above the US median of $74,580. 6.1% of residents live below the federal poverty level. Home values sit at a median of $230,800, with monthly rent averaging $978. The homeownership rate of 77.5% is higher than the national rate of 64.8%.
Educational attainment in Marion reflects 39.2% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 16.5% of workers primarily work from home, similar to the national work-from-home rate of 14.2%. The average commute is 19.1 minutes each way.
Marion city Population History (2010-2024)
The city of Marion city had a population of 35,269 in 2010 and 42,542 in 2024, a 20.6% growth over 14 years. The peak was 42,542 in 2024. Average annual growth rate: 1.35%.
42,542
Population (2024)
35,269
Population (2010)
42,542
Peak (2024)
1.35%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 35,269 |
| 2011 | 35,824 |
| 2012 | 36,363 |
| 2013 | 36,816 |
| 2014 | 37,373 |
| 2015 | 37,926 |
| 2016 | 38,837 |
| 2017 | 39,441 |
| 2018 | 39,970 |
| 2019 | 40,359 |
| 2020 | 41,574 |
| 2021 | 41,660 |
| 2022 | 41,607 |
| 2023 | 42,127 |
| 2024 | 42,542 |
Race & Ethnicity
| White | 89.2% |
| Black or African American | 2.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.7% |
| Two or More Races | 0.0% |
Economy & Income
$87,105
Median Household Income
$43,334
Per Capita Income
6.1%
Poverty Rate
2.3%
Unemployment Rate
Housing
$230,800
Median Home Value
$978
Median Rent
77.5%
Owner-Occupied
Education
97.1%
High School+
39.2%
Bachelor's+
Commute
1.0%
Drive Alone
74.2%
Public Transit
16.5%
Work From Home
19.1 min
Avg Commute
Community Profile
21.8%
Foreign Born
96.3%
Non-English at Home
5.9%
Veterans
12.0%
With Disability
96.8%
Health Insurance
96.1%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 22.8% |
| Manufacturing | 17.3% |
| Finance, Insurance & Real Estate | 10.5% |
| Information | 10.1% |
| Education, Health Care & Social Services | 7.1% |
| Construction | 5.3% |
| Retail Trade | 5.0% |
| Public Administration | 3.0% |
| Arts, Entertainment & Food Services | 2.7% |
| Transportation & Warehousing | 1.9% |
| Agriculture & Mining | 1.1% |
Largest cities in Iowa
Largest counties in Iowa
Part of Iowa
Metro areas in Iowa
City rankings
Frequently Asked Questions
Marion, Iowa has a population of 41,690 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 13th-largest city in Iowa.
The median household income in Marion, Iowa is $87,105, with 6.1% of residents living below the federal poverty level.
The median home value in Marion, Iowa is $230,800, with median monthly rent at $978 and a homeownership rate of 77.5%.
The median age in Marion, Iowa is 40.4 years. The population is 48.1% male and 51.9% female.
The population has grown 20.6% since 2010 (35,269 → 42,542).
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Statewide data for Iowa
Population, race, income, age, and trends across Iowa
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.