Total Population in Williamson County, TX
ACS 2024 5-Year Estimates
672,688
Rank #102/3,222 · #12 in TX
97th
Williamson 672,688
TX 30M -97.8%
US 330M
Total Population Trend
Rankings →Percentile Rank Over Time
Year-over-Year Population Change
National Distribution
How Williamson County's total population of 672,688 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 Williamson County for total population.
Nearby Rankings
Full ranking →| #99 | District of Columbia, DC | 681,294 |
| #100 | Tulsa County, OK | 680,794 |
| #101 | Bernalillo County, NM | 673,930 |
| #102 | Williamson County, TX | 672,688 |
| #103 | Jefferson County, AL | 667,755 |
| #104 | Providence County, RI | 664,854 |
| #105 | Kent County, MI | 663,150 |
About Total Population
Williamson County, Texas has a total population of 672,688, ranking #102 of 3,222 counties nationwide — 99.8% below the national value of 330M. Within Texas, it ranks #12 of 254. This places it in the 97th 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.