Total Population in Marshall County, IA
ACS 2024 5-Year Estimates
40,114
Rank #1,202/3,222 · #15 in IA
63th
Marshall 40,114
IA 3,210,507 -98.8%
US 330M
Total Population Trend
Rankings →Percentile Rank Over Time
Year-over-Year Population Change
National Distribution
How Marshall County's total population of 40,114 compares to all 3,222 U.S. counties. Values range from 33 to 9,808,667.
Distribution of Total Population Across All Counties
Ranking Context
Counties ranked closest to Marshall County for total population.
Nearby Rankings
Full ranking →| #1,199 | Mower County, MN | 40,343 |
| #1,200 | Gurabo Municipio, PR | 40,228 |
| #1,201 | Waldo County, ME | 40,192 |
| #1,202 | Marshall County, IA | 40,114 |
| #1,203 | Rio Arriba County, NM | 40,070 |
| #1,204 | Ottawa County, OH | 39,994 |
| #1,205 | Louisa County, VA | 39,980 |
About Total Population
Marshall County, Iowa has a total population of 40,114, ranking #1,202 of 3,222 counties nationwide — 100.0% below the national value of 330M. Within Iowa, it ranks #15 of 99. This places it in the 63th percentile nationally.
Total population count from the American Community Survey. Source: U.S. Census Bureau, American Community Survey 2024 5-Year Estimates. All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.