Total Population in Delaware County, IA
ACS 2024 5-Year Estimates
17,558
Rank #2,007/3,222 · #40 in IA
38th
Delaware 17,558
IA 3,210,507 -99.5%
US 330M
Total Population Trend
Rankings →Percentile Rank Over Time
Year-over-Year Population Change
National Distribution
How Delaware County's total population of 17,558 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 Delaware County for total population.
Nearby Rankings
Full ranking →| #2,004 | Chester County, TN | 17,611 |
| #2,005 | Garrard County, KY | 17,568 |
| #2,006 | Schuyler County, NY | 17,562 |
| #2,007 | Delaware County, IA | 17,558 |
| #2,008 | Dallas County, MO | 17,551 |
| #2,009 | Winston County, MS | 17,536 |
| #2,010 | Cook County, GA | 17,532 |
About Total Population
Delaware County, Iowa has a total population of 17,558, ranking #2,007 of 3,222 counties nationwide — 100.0% below the national value of 330M. Within Iowa, it ranks #40 of 99. This places it in the 38th 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.