Total Population in Loudoun County, VA
ACS 2024 5-Year Estimates
How Loudoun County Compares
National Distribution
Where Loudoun County falls among all 3,222 U.S. counties for total population.
■ Loudoun County: 432,998
Ranking Context
| Rank | County | Value |
|---|---|---|
| #164 | Santa Barbara County, CA | 443,701 |
| #165 | Monterey County, CA | 437,613 |
| #166 | Berks County, PA | 433,015 |
| #167 | Loudoun County, VA | 432,998 |
| #168 | Jefferson Parish, LA | 430,920 |
| #169 | Manatee County, FL | 429,792 |
| #170 | Lucas County, OH | 428,018 |
Total Population in Loudoun County, Virginia
Loudoun County, Virginia has a total population of 432,998, which ranks #167 of 3,222 out of 3,222 counties nationwide. This is 99.9% below the national value of 330M.
Within Virginia, Loudoun County ranks #4 of 133 out of 133 counties. This places it in the 95th percentile nationally.
Total population count from the American Community Survey. All data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates for 2024.
About this data
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2024). All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.