RANKING · 2025 ESTIMATES · 11 SHOWN OF 11

Most densely populated, Delaware cities

Delaware cities ranked by residents per square mile (2025). This list covers the 11 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 population gained Most population lost Most sparsely populated

RANKPLACESTATEPOPPOPULATION DENSITYVS –

01Wilmington, DEDE73,5126,747–

02Elsmere, DEDE6,1966,278–

03Newark, DEDE30,3593,204–

04Smyrna, DEDE13,3402,081–

05Middletown, DEDE25,7982,035–

06Seaford, DEDE9,1651,796–

07Dover, DEDE40,5921,704–

08Georgetown, DEDE8,2911,651–

09New Castle, DEDE5,7261,646–

10Millsboro, DEDE7,8901,544–

11Milford, DEDE14,7231,494–

SHOWING 1–11 OF 11

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU POPULATION ESTIMATES