CensusEasy
RANKING · 2025 ESTIMATES · 11 SHOWN OF 11

Most sparsely populated, Delaware cities

Delaware cities with the fewest residents per square mile (2025). This list covers the 11 cities in Delaware that qualify, ranked against each other statewide. The median across all 11 is 1,796. Biggest climber in the top 100 since 2020: Elsmere, DE, up 10 places to #10.

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DelawareAll statesPop > 5KAll rankings
SAME RANKING BYCountiesStatesMetros
Most sparsely populated by state
RANKPLACESTATEPOPPOPULATION DENSITYVS 2000
01Milford, DEDE14,7231,494+119%
02▲2Millsboro, DEDE7,8901,544+234%
03▲5New Castle, DEDE5,7261,646+18%
04▲1Georgetown, DEDE8,2911,651+79%
05▲4Dover, DEDE40,5921,704+26%
06▲1Seaford, DEDE9,1651,796+37%
07▲3Middletown, DEDE25,7982,035+319%
08▲3Smyrna, DEDE13,3402,081+135%
09▲4Newark, DEDE30,3593,204+6%
10▲10Elsmere, DEDE6,1966,278+7%
11▲10Wilmington, DEDE73,5126,747+1%
SHOWING 1–11 OF 11

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU POPULATION ESTIMATES