state record · population
Population of Delaware
Delaware had an estimated population of 1,051,917 on July 1, 2024, according to the Census Bureau's Population Estimates Program.
What stands out
Delaware had an estimated population of 1,051,917 on July 1, 2024, according to the Census Bureau's Population Estimates Program. Since July 2020 that is +6.0 % (59,989 people); since 2010 it is +16.9 %. Migration is the larger driver since 2020: net migration +61,809 against a natural change (births minus deaths) of -1,944. Among the 51 states in the United States, it ranks 45 by population. Values for 2010–2019 and 2020–2024 come from two estimate vintages benchmarked to different censuses; the 2019→2020 step is partly a rebasing.
Population and components of change
July 1 estimates; components per estimate year (July–June).
Largest counties in Delaware
By latest estimate, with change since July 2020. Each links to the county's own population record.
| County | Population | Since 2020 |
|---|---|---|
| New Castle County | 588,093 | +3.0 % |
| Sussex County | 271,134 | +13.6 % |
| Kent County | 192,690 | +5.7 % |
Largest cities and towns in Delaware
Incorporated places, latest estimate. The Census Bureau publishes totals only for places, no components.
| Place | Population | Since 2020 |
|---|---|---|
| Wilmington city | 73,176 | +3.3 % |
| Dover city | 40,191 | +2.0 % |
| Newark city | 30,506 | -0.3 % |
| Middletown town | 25,686 | +9.8 % |
| Milford city | 14,079 | +24.5 % |
| Smyrna town | 13,326 | +2.8 % |
| Seaford city | 8,952 | +12.2 % |
| Georgetown town | 8,098 | +12.6 % |
| Millsboro town | 7,864 | +13.3 % |
| Elsmere town | 6,234 | +0.2 % |
| New Castle city | 5,715 | +3.1 % |
| Clayton town | 4,511 | +13.1 % |
| Laurel town | 4,395 | +12.8 % |
| Camden town | 4,191 | +12.5 % |
| Harrington city | 3,934 | +4.1 % |
| Milton town | 3,773 | +13.1 % |
| Lewes city | 3,702 | +11.5 % |
| Selbyville town | 3,285 | +13.0 % |
| Ocean View town | 3,023 | +13.5 % |
| Townsend town | 2,941 | +7.2 % |
| Bridgeville town | 2,909 | +13.0 % |
| Cheswold town | 2,537 | +31.2 % |
| Delmar town | 2,278 | +11.7 % |
| Millville town | 2,108 | +13.5 % |
| Delaware City city | 1,933 | +2.7 % |
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