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RANKING · 2025 ACS · 11 SHOWN OF 11

Most sparsely populated, Delaware cities

Delaware cities with the fewest residents per square mile (2023). This list covers the 11 cities in Delaware that qualify, ranked against each other statewide.

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YEAR19902000201020202025
Most sparsely populated by state
RANKPLACESTATEPOPPOPULATION DENSITYVS 2000
01Milford, DEDE14,7231,494+119%
02Millsboro, DEDE7,8901,544+234%
03New Castle, DEDE5,7261,646+18%
04Georgetown, DEDE8,2911,651+79%
05Dover, DEDE40,5921,704+26%
06Seaford, DEDE9,1651,796+37%
07Middletown, DEDE25,7982,035+319%
08Smyrna, DEDE13,3402,081+135%
09Newark, DEDE30,3593,204+6%
10Elsmere, DEDE6,1966,278+7%
11Wilmington, DEDE73,5126,747+1%
SHOWING 1–11 OF 11
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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES