RANKING · 2024 ACS · 21 SHOWN OF 21

Most population lost, Delaware cities

Delaware cities that lost 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

01Claymont, DEDE8,786-1,109+91%

02Bear, DEDE22,370-690–

03Pike Creek, DEDE7,129-679−107%

04Edgemoor, DEDE6,349-286−306%

05Newark, DEDE30,359-271−108%

06North Star, DEDE7,834-222–

07Hockessin, DEDE13,439-39–

08Elsmere, DEDE6,196-26−81%

09New Castle, DEDE5,726+28+12%

10Wilmington Manor, DEDE8,214+52−117%

11Brookside, DEDE15,115+141−128%

12Glasgow, DEDE15,546+258–

13Smyrna, DEDE13,340+282−37%

14Dover, DEDE40,592+434−91%

15Georgetown, DEDE8,291+526−42%

16Seaford, DEDE9,165+528−47%

17Millsboro, DEDE7,890+561−22%

18Pike Creek Valley, DEDE12,431+739–

19Wilmington, DEDE73,512+829−27%

20Middletown, DEDE25,798+1,469−37%

21Milford, DEDE14,723+1,613+158%

SHOWING 1–21 OF 21

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