Total Population in Union County, OH
ACS 2024 5-Year Estimates
67,324
Rank #814/3,222 · #36 in OH
75th
Union 67,324
OH 12M -99.4%
US 330M
Total Population Trend
Rankings →Percentile Rank Over Time
Year-over-Year Population Change
National Distribution
How Union County's total population of 67,324 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 Union County for total population.
Nearby Rankings
Full ranking →| #811 | Allegany County, MD | 67,452 |
| #812 | Liberty County, GA | 67,397 |
| #813 | Madison County, NY | 67,328 |
| #814 | Union County, OH | 67,324 |
| #815 | San Benito County, CA | 67,290 |
| #816 | Marquette County, MI | 67,112 |
| #817 | Trujillo Alto Municipio, PR | 67,088 |
About Total Population
Union County, Ohio has a total population of 67,324, ranking #814 of 3,222 counties nationwide — 100.0% below the national value of 330M. Within Ohio, it ranks #36 of 88. This places it in the 75th 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.