RANKING · 2020 CENSUS · 21 SHOWN OF 21

Fastest shrinking, Delaware cities · 2020

Delaware cities with the steepest population decline from the 2010 census to 2020. This list covers the 21 cities in Delaware that qualify, ranked against each other statewide.

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SAME RANKING BYCounties States Metros

YEAR2000 2010 2020 2024

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Newark, DEDE30,359-2.7%−120%

02Pike Creek, DEDE7,129-1.1%−101%

03Hockessin, DEDE13,439-0.4%–

04Wilmington, DEDE73,512+0.1%−96%

05North Star, DEDE7,834+1.0%–

06Elsmere, DEDE6,196+1.6%−170%

07Wilmington Manor, DEDE8,214+3.5%−197%

08Pike Creek Valley, DEDE12,431+4.2%–

09Brookside, DEDE15,115+4.3%−232%

10New Castle, DEDE5,726+5.0%+874%

11Glasgow, DEDE15,546+6.9%–

12Dover, DEDE40,592+9.3%−44%

13Georgetown, DEDE8,291+11.1%−55%

14Seaford, DEDE9,165+14.9%−16%

15Edgemoor, DEDE6,349+16.9%+611%

16Milford, DEDE14,723+17.1%+67%

17Bear, DEDE22,370+19.0%–

18Claymont, DEDE8,786+19.9%−436%

19Middletown, DEDE25,798+22.9%−62%

20Smyrna, DEDE13,340+28.5%+233%

21Millsboro, DEDE7,890+77.0%+76%

SHOWING 1–21 OF 21

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS