Most Densely Populated Cities in Delaware

The top 19 of 19 Delaware cities on GIS Map, ranked by residents per square mile of land.

#	City	County	People per sq mi	Population
1	Wilmington	New Castle	6,583	71,727
2	Elsmere	New Castle	6,285	6,203
3	Claymont	New Castle	4,085	8,786
4	Bear	New Castle	3,868	22,370
5	Newark	New Castle	3,201	30,330
6	Pike Creek	New Castle	2,651	7,129
7	Smyrna	Kent	2,054	13,165
8	Middletown	New Castle	1,827	24,661
9	Dover	Kent	1,673	39,837
10	Seaford	Sussex	1,670	8,485
11	New Castle	New Castle	1,604	5,579
12	Georgetown	Sussex	1,525	7,660
13	Laurel	Sussex	1,499	4,152
14	Harrington	Kent	1,409	3,838
15	Hockessin	New Castle	1,338	13,439
16	Milford	Kent/Sussex	1,299	12,803
17	Rehoboth Beach	Sussex	1,166	1,370
18	Camden	Kent	1,096	4,106
19	Lewes	Sussex	836	3,505

Top Delaware Counties

Counties ranked by residents per square mile of land.

1. New Castle County1,356 2. Kent County320 3. Sussex County273

Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates. Only cities covered by GIS Map with at least 1,000 residents are ranked. Estimates carry margins of error.

Citing this page: GIS Map, “Most Densely Populated Cities in Delaware”, https://gismap.land/rankings/delaware/most-densely-populated-cities. Figures from U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.

More Delaware rankings

Richest cities Most expensive homes Most affordable homes Highest rent Most educated Highest poverty rate Largest by population Youngest Oldest by median age Fastest-growing Fastest-shrinking Fastest-growing since 2010 Warmest Coldest Snowiest Wettest Driest