Population: Loudoun County
Latest value, 2025
449,749persons
Definition
Resident population. Spain and the EU: 1 January, with Spanish figures from the official municipal register (Padrón). United States: Census Bureau population estimates for 1 July.
For Denmark, Statistics Denmark counts the registered resident population on 1 January. Greenland and the Faroe Islands are excluded. The annual series selects the first-quarter reference date from FOLK1A.
Evolution
Value
| Period | Value |
|---|---|
| 2025 | 449,749 |
| 2024 | 443,749 |
| 2023 | 436,786 |
| 2022 | 432,672 |
| 2021 | 428,857 |
| 2020 | 422,693 |
Comparison with related places
| Place | 2025 |
|---|---|
| Loudoun County | 449,749 |
| Virginia | 8,880,107 |
| United States | 341,784,857 |
| Virginia Beach city | 453,737 |
| Chesterfield County | 397,148 |
| Prince William County | 502,966 |
| Henrico County | 342,775 |
| Chesapeake city | 255,332 |
How to cite
U.S. Census Bureau. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-08.Get this figure from your agent
Call get_value through the MCP server or the REST API.
get_value {"indicator":"population","place":"us-county-51107"}
GET https://invokely.ai/api/v1/value?indicator=population&place=us-county-51107