Migration to and from Sussex County, Delaware
Where Sussex 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
15,901
people moved in (5-yr)
Total outflow
11,174
people moved out (5-yr)
Net migration
+4,727
inflow minus outflow
Top 10 counties people moved IN from
| Origin | State / Region | People (5-yr) |
|---|---|---|
| New Castle County | Delaware | 1,546 |
| Kent County | Delaware | 1,168 |
| Montgomery County | Maryland | 607 |
| Wicomico County | Maryland | 595 |
| Baltimore County | Maryland | 475 |
| Anne Arundel County | Maryland | 398 |
| Central America | 272 | |
| Asia | 235 | |
| Greenville County | South Carolina | 231 |
| Worcester County | Maryland | 217 |
Top 10 counties people moved OUT to
| Destination | State / Region | People (5-yr) |
|---|---|---|
| Kent County | Delaware | 1,339 |
| New Castle County | Delaware | 1,089 |
| Wicomico County | Maryland | 1,065 |
| Philadelphia County | Pennsylvania | 230 |
| York County | Pennsylvania | 230 |
| Philadelphia City | Philadelphia County, Pennsylvania | 230 |
| Charlotte County | Florida | 181 |
| Worcester County | Maryland | 177 |
| Franklin Township | York County, Pennsylvania | 174 |
| Sarasota County | Florida | 170 |
Explore Sussex County
- Business data for Sussex CountyConstruction sector establishments, employment, payroll
- Cities in DelawareACS demographic profiles for places statewide
- ZIP code lookupSearch demographic data by ZIP code
- Opportunity IndexRank counties by business growth potential
- Federal contracts in DEGovBids: RFPs, awards, NAICS matching
- New business filings in DelawareNewFilings: 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: 10005.