RANKING · 2020 CENSUS · 21 SHOWN OF 21

Fastest growing, Delaware cities · 2020

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

Flip the list · Fastest shrinking, US cities →

DelawareAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros

YEAR2000 2010 2020 2024

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Millsboro, DEDE7,890+77.0%+33.4 pts

02Smyrna, DEDE13,340+28.5%+20.0 pts

03Middletown, DEDE25,798+22.9%−37.8 pts

04Claymont, DEDE8,786+19.9%+25.8 pts

05Bear, DEDE22,370+19.0%–

06Milford, DEDE14,723+17.1%+6.8 pts

07Edgemoor, DEDE6,349+16.9%+14.5 pts

08Seaford, DEDE9,165+14.9%−2.8 pts

09Georgetown, DEDE8,291+11.1%−13.3 pts

10Dover, DEDE40,592+9.3%−7.4 pts

11Glasgow, DEDE15,546+6.9%–

12New Castle, DEDE5,726+5.0%+4.5 pts

13Brookside, DEDE15,115+4.3%+7.6 pts

14Pike Creek Valley, DEDE12,431+4.2%–

15Wilmington Manor, DEDE8,214+3.5%+7.0 pts

16Elsmere, DEDE6,196+1.6%+3.9 pts

17North Star, DEDE7,834+1.0%–

18Wilmington, DEDE73,512+0.1%−1.5 pts

19Hockessin, DEDE13,439-0.4%–

20Pike Creek, DEDE7,129-1.1%−95.5 pts

21Newark, DEDE30,359-2.7%−16.5 pts

SHOWING 1–21 OF 21

Download CSV (full list, 21 rows)

UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS