RANKING · 2010 CENSUS · 21 SHOWN OF 21

Most densely populated, Delaware cities · 2010

Delaware cities ranked by residents per square mile (2023). This list covers the 21 cities in Delaware that qualify, ranked against each other statewide.

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SAME RANKING BYCounties States Metros

RELATEDLargest by population Fastest growing Fastest shrinking Most sparsely populated Best broadband access Worst broadband access

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01Wilmington, DEDE73,5126,503−2%

02Elsmere, DEDE6,1966,212+6%

03Wilmington Manor, DEDE8,2144,828−5%

04Pike Creek Valley, DEDE12,4313,907–

05Claymont, DEDE8,7863,837−10%

06Brookside, DEDE15,1153,697−3%

07Bear, DEDE22,3703,349+10%

08Newark, DEDE30,3593,320+10%

09Edgemoor, DEDE6,3492,960−5%

10Pike Creek, DEDE7,1292,937−60%

11Smyrna, DEDE13,3401,564+76%

12New Castle, DEDE5,7261,520+9%

13Dover, DEDE40,5921,513+12%

14Middletown, DEDE25,7981,488+206%

15Glasgow, DEDE15,5461,441+11%

16Seaford, DEDE9,1651,357+3%

17Hockessin, DEDE13,4391,347+5%

18Georgetown, DEDE8,2911,279+38%

19North Star, DEDE7,8341,173−4%

20Milford, DEDE14,723970+42%

21Millsboro, DEDE7,890759+64%

SHOWING 1–21 OF 21

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