RANKING · 2024 ACS · 21 SHOWN OF 21

Most population gained, Delaware cities

Delaware cities that added the most residents from the 2020 census to 2024, by raw count of people rather than percentage. This list covers the 21 cities in Delaware that qualify, ranked against each other statewide.

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DelawareAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros

YEAR2000 2010 2020 2024

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

01Milford, DEDE14,723+1,613+158%

02Middletown, DEDE25,798+1,469−37%

03Wilmington, DEDE73,512+829−27%

04Pike Creek Valley, DEDE12,431+739–

05Millsboro, DEDE7,890+561−22%

06Seaford, DEDE9,165+528−47%

07Georgetown, DEDE8,291+526−42%

08Dover, DEDE40,592+434−91%

09Smyrna, DEDE13,340+282−37%

10Glasgow, DEDE15,546+258–

11Brookside, DEDE15,115+141−128%

12Wilmington Manor, DEDE8,214+52−117%

13New Castle, DEDE5,726+28+12%

14Elsmere, DEDE6,196-26−81%

15Hockessin, DEDE13,439-39–

16North Star, DEDE7,834-222–

17Newark, DEDE30,359-271−108%

18Edgemoor, DEDE6,349-286−306%

19Pike Creek, DEDE7,129-679−107%

20Bear, DEDE22,370-690–

21Claymont, DEDE8,786-1,109+91%

SHOWING 1–21 OF 21

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES