Migration to and from Chester County, Pennsylvania
Where Chester 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
32,079
people moved in (5-yr)
Total outflow
27,761
people moved out (5-yr)
Net migration
+4,318
inflow minus outflow
Top 10 counties people moved IN from
| Origin | State / Region | People (5-yr) |
|---|---|---|
| Montgomery County | Pennsylvania | 4,510 |
| Delaware County | Pennsylvania | 4,199 |
| Philadelphia County | Pennsylvania | 2,473 |
| Lancaster County | Pennsylvania | 1,626 |
| New Castle County | Delaware | 1,241 |
| Bucks County | Pennsylvania | 1,144 |
| Berks County | Pennsylvania | 982 |
| Asia | 648 | |
| Allegheny County | Pennsylvania | 422 |
| Central America | 377 |
Top 10 counties people moved OUT to
| Destination | State / Region | People (5-yr) |
|---|---|---|
| Montgomery County | Pennsylvania | 3,559 |
| Delaware County | Pennsylvania | 2,068 |
| Philadelphia County | Pennsylvania | 1,946 |
| Lancaster County | Pennsylvania | 1,690 |
| New Castle County | Delaware | 1,122 |
| Monroe County | Pennsylvania | 824 |
| Cumberland County | Pennsylvania | 742 |
| Berks County | Pennsylvania | 730 |
| Centre County | Pennsylvania | 694 |
| Allegheny County | Pennsylvania | 587 |
Explore Chester County
- Business data for Chester CountyConstruction sector establishments, employment, payroll
- Cities in PennsylvaniaACS demographic profiles for places statewide
- ZIP code lookupSearch demographic data by ZIP code
- Opportunity IndexRank counties by business growth potential
- Federal contracts in PAGovBids: RFPs, awards, NAICS matching
- New business filings in PennsylvaniaNewFilings: 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: 42029.