RANKING · 2024 ACS · 21 SHOWN OF 21

Fastest shrinking, Delaware cities

Delaware cities with the steepest population decline from the 2020 census to 2024. This list covers the 21 cities in Delaware that qualify, ranked against each other statewide. The median across all 21 is +0.9%. Biggest climber in the top 100 since 2020: Claymont, DE, up 17 places to #1.

Flip the list · Fastest growing, US cities →

DelawareAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros

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

YEAR2000 2010 2020 2024

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01▲17Claymont, DEDE8,786-11.2%−5.3 pts

02Pike Creek, DEDE7,129-8.7%−103.0 pts

03▲12Edgemoor, DEDE6,349-4.3%−6.7 pts

04▲13Bear, DEDE22,370-3.0%–

05North Star, DEDE7,834-2.8%–

06▼5Newark, DEDE30,359-0.9%−14.6 pts

07▼1Elsmere, DEDE6,196-0.4%+1.9 pts

08▼5Hockessin, DEDE13,439-0.3%–

09▲1New Castle, DEDE5,726+0.5%0.0 pts

10▼3Wilmington Manor, DEDE8,214+0.6%+4.2 pts

11▼2Brookside, DEDE15,115+0.9%+4.2 pts

12Dover, DEDE40,592+1.1%−15.6 pts

13▼9Wilmington, DEDE73,512+1.2%−0.4 pts

14▼3Glasgow, DEDE15,546+1.7%–

15▲5Smyrna, DEDE13,340+2.2%−6.4 pts

16▼8Pike Creek Valley, DEDE12,431+6.3%–

17▲2Middletown, DEDE25,798+6.3%−54.4 pts

18▼4Seaford, DEDE9,165+6.6%−11.0 pts

19▼6Georgetown, DEDE8,291+7.4%−17.0 pts

20▲1Millsboro, DEDE7,890+8.2%−35.5 pts

21▼5Milford, DEDE14,723+14.4%+4.2 pts

SHOWING 1–21 OF 21

Download CSV (full list, 21 rows)

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