Total Population in Decatur County, IA
ACS 2024 5-Year Estimates
7,759
Rank #2,668/3,222 · #86 in IA
17th
Decatur 7,759
IA 3,210,507 -99.8%
US 330M
Total Population Trend
Rankings →Percentile Rank Over Time
Year-over-Year Population Change
National Distribution
How Decatur County's total population of 7,759 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 Decatur County for total population.
Nearby Rankings
Full ranking →| #2,665 | Twiggs County, GA | 7,803 |
| #2,666 | Taylor County, GA | 7,786 |
| #2,667 | Pocahontas County, WV | 7,784 |
| #2,668 | Decatur County, IA | 7,759 |
| #2,669 | Richardson County, NE | 7,751 |
| #2,670 | Merrick County, NE | 7,724 |
| #2,671 | Doddridge County, WV | 7,711 |
About Total Population
Decatur County, Iowa has a total population of 7,759, ranking #2,668 of 3,222 counties nationwide — 100.0% below the national value of 330M. Within Iowa, it ranks #86 of 99. This places it in the 17th 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.