Loudoun County, Virginia
A Virginia county.
Official government website: loudoun.gov (via virginia.gov local government directory)
Population
- July 1, 2024 estimate
- 443,380
- April 1, 2020 estimates base
- 420,955
- Change, 2020–2024
- +22,425 (5.3%)
Source: U.S. Census Bureau, Population Estimates Program, Annual Resident Population Estimates for Counties, Vintage 2024 (co-est2024-alldata) (retrieved 2026-11-04). Full demographic, housing and economic profile: Census QuickFacts for Loudoun County.
Tracked records
| Project / program | Operator | Locality | Investment | Power | Conf. |
|---|---|---|---|---|---|
| Google Loudoun County data center Operating — operator confirmed · campus | Loudoun County | Not separately disclosed | Not disclosed in cited source | A | |
| QTS Ashburn 1 Marketed campus — expansion stage needs confirmation · campus | QTS Data Centers | Loudoun County | Not disclosed in cited source | 55 MW+ DC1 specification; DC2 delivery not verified | B |
| Vantage Ashburn III / VA3 Marketed campus — full buildout not verified · campus | Vantage Data Centers | Loudoun County | Not disclosed in cited source | 288 MW critical IT load — campus specification | B |
Campus and multi-site program records are kept distinct. Investment and power figures are not summed across overlapping scopes.
Records in neighboring jurisdictions
Source-linked records tracked in counties and cities that border Loudoun County.
| Project / program | Operator | Locality | Investment | Power | Conf. |
|---|---|---|---|---|---|
| Google Prince William County data center Operating — operator confirmed · campus | Prince William County | Not separately disclosed | Not disclosed in cited source | A |
Campus and multi-site program records are kept distinct. Investment and power figures are not summed across overlapping scopes.
Neighboring jurisdictions
Adjacency: U.S. Census Bureau county adjacency file (2024).
Jurisdiction name and FIPS code: U.S. Census Bureau.