RANKING · 2010 CENSUS · 20 SHOWN OF 20

Fastest shrinking, Delaware cities · 2010

Delaware cities with the steepest population decline since the prior decennial census. This list covers the 20 cities in Delaware that qualify, ranked against each other statewide.

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SAME RANKING BYCounties States Metros

YEAR2000 2010 2020

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Pike Creek, DEDE7,129-60.0%−164%

02Claymont, DEDE8,786-10.5%+77%

03Edgemoor, DEDE6,349-5.3%−321%

04Wilmington Manor, DEDE8,214-4.5%+26%

05North Star, DEDE7,834-3.6%–

06Brookside, DEDE15,115-3.1%−7%

07Wilmington, DEDE73,512-2.5%−257%

08Seaford, DEDE9,165+3.4%−81%

09Hockessin, DEDE13,439+4.8%–

10Elsmere, DEDE6,196+5.7%−351%

11New Castle, DEDE5,726+8.7%+1583%

12Bear, DEDE22,370+10.1%–

13Newark, DEDE30,359+10.2%−26%

14Glasgow, DEDE15,546+11.4%–

15Dover, DEDE40,592+12.2%−27%

16Georgetown, DEDE8,291+38.3%+57%

17Milford, DEDE14,723+42.0%+311%

18Millsboro, DEDE7,890+64.3%+47%

19Smyrna, DEDE13,340+76.5%+793%

20Middletown, DEDE25,798+206.3%+240%

SHOWING 1–20 OF 20

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES