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. The median across all 21 is +141. Biggest climber in the top 100 since 2020: Bear, DE, up 18 places to #2.

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SAME RANKING BYCounties States Metros

RELATEDLargest by population Fastest growing Fastest shrinking Most population gained Most densely populated Most sparsely populated

YEAR2000 2010 2020 2024

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

01▲15Claymont, DEDE8,786-1,109+91%

02▲18Bear, DEDE22,370-690–

03▼1Pike Creek, DEDE7,129-679−107%

04▲8Edgemoor, DEDE6,349-286−306%

05▼4Newark, DEDE30,359-271−108%

06▼1North Star, DEDE7,834-222–

07▼4Hockessin, DEDE13,439-39–

08▼2Elsmere, DEDE6,196-26−81%

09▼2New Castle, DEDE5,726+28+12%

10▼2Wilmington Manor, DEDE8,214+52−117%

11▼1Brookside, DEDE15,115+141−128%

12▲1Glasgow, DEDE15,546+258–

13▲4Smyrna, DEDE13,340+282−37%

14▲5Dover, DEDE40,592+434−91%

15▼4Georgetown, DEDE8,291+526−42%

16▼2Seaford, DEDE9,165+528−47%

17▲1Millsboro, DEDE7,890+561−22%

18▼9Pike Creek Valley, DEDE12,431+739–

19▼15Wilmington, DEDE73,512+829−27%

20▲1Middletown, DEDE25,798+1,469−37%

21▼6Milford, DEDE14,723+1,613+158%

SHOWING 1–21 OF 21

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES