| # | City | Population change 2010-2020 |
|---|---|---|
| 1 | Smyrna | +28.6% |
| 2 | Middletown | +22.9% |
| 3 | Lewes | +20.2% |
| 4 | Milford | +17.0% |
| 5 | Seaford | +14.5% |
| 6 | Georgetown | +11.3% |
| 7 | Dover | +9.6% |
| 8 | Camden | +7.0% |
| 9 | Harrington | +6.0% |
| 10 | New Castle | +5.1% |
| 11 | Laurel | +4.4% |
| 12 | Elsmere | +1.7% |
| 13 | Wilmington | +0.1% |
| 14 | Newark | -2.6% |
| 15 | Rehoboth Beach | -16.5% |
Top Delaware Counties
Counties ranked by percent population change between the 2010 Census and the April 2020 estimates base.
Source: U.S. Census Bureau, 2010 Census and Population Estimates Program (Vintage 2024: April 2020 estimates base and July 1, 2024 estimate). Only cities covered by GIS Map with at least 1,000 residents are ranked. Estimates carry margins of error.
Citing this page: GIS Map, “Fastest-Growing Cities in Delaware Since 2010”, https://gismap.land/rankings/delaware/fastest-growing-cities-since-2010. Figures from U.S. Census Bureau, 2010 Census and Population Estimates Program (Vintage 2024: April 2020 estimates base and July 1, 2024 estimate).