Migration to and from Loudoun County, Virginia
Where Loudoun County residents came from and where they went over the 5-year window 2016-2020. Census ACS County-to-County Migration Flows, 2020 5-yr (frozen vintage).
Total inflow
29,979
people moved in (5-yr)
Total outflow
28,264
people moved out (5-yr)
Net migration
+1,715
inflow minus outflow
Top 10 counties people moved IN from
| Origin | State / Region | People (5-yr) |
|---|---|---|
| Fairfax County | Virginia | 8,358 |
| Asia | 1,988 | |
| Europe | 1,155 | |
| Prince William County | Virginia | 789 |
| Montgomery County | Maryland | 742 |
| District of Columbia | District of Columbia | 534 |
| Fauquier County | Virginia | 494 |
| Arlington County | Virginia | 451 |
| Palm Beach County | Florida | 438 |
| Jefferson County | West Virginia | 396 |
Top 10 counties people moved OUT to
| Destination | State / Region | People (5-yr) |
|---|---|---|
| Fairfax County | Virginia | 3,658 |
| Prince William County | Virginia | 1,337 |
| Frederick County | Virginia | 955 |
| Albemarle County | Virginia | 568 |
| Montgomery County | Maryland | 544 |
| Montgomery County | Virginia | 542 |
| Harris County | Texas | 500 |
| Lake County | Florida | 486 |
| Arlington County | Virginia | 435 |
| Pinal County | Arizona | 423 |
Explore Loudoun County
- Business data for Loudoun CountyConstruction sector establishments, employment, payroll
- Cities in VirginiaACS demographic profiles for places statewide
- ZIP code lookupSearch demographic data by ZIP code
- Opportunity IndexRank counties by business growth potential
- Federal contracts in VAGovBids: RFPs, awards, NAICS matching
- New business filings in VirginiaNewFilings: fresh SOS registrations
Methodology
- Counts represent the number of people aged 1+ who reported a different residence at the survey reference date than they did one year earlier, aggregated across the 5-year sample window 2016-2020.
- Outbound (OUT) flows are reported less frequently than inbound (IN) because the survey captures the destination side of each move. Many county pairs have null OUT counts, which is normal.
- "Total inflow" sums the published MOVEDIN counts across all origin counties, including foreign-region inflows (Africa, Asia, Central America, etc.). It is not the same as net population change.
- Frozen vintage. The Census Bureau has not released a newer county-to-county migration flows file. The 2020 5-yr vintage (covering 2016-2020) is the latest available as of build date.
Source: U.S. Census Bureau, American Community Survey, County-to-County Migration Flows: 2016-2020. Vintage: 2020 5-yr. Generated: 2026-05-28. FIPS: 51107.