Oldest Cities in Delaware by Median Age

The top 19 of 19 Delaware cities on GIS Map, ranked by highest median age.

#	City	County	Median age	Population
1	Lewes	Sussex	67.2 years	3,505
2	Rehoboth Beach	Sussex	62.9 years	1,370
3	New Castle	New Castle	48.5 years	5,579
4	Hockessin	New Castle	46.3 years	13,439
5	Pike Creek	New Castle	45.3 years	7,129
6	Milford	Kent/Sussex	41.9 years	12,803
7	Claymont	New Castle	41.5 years	8,786
8	Seaford	Sussex	41.1 years	8,485
9	Middletown	New Castle	38.7 years	24,661
10	Bear	New Castle	37.9 years	22,370
11	Wilmington	New Castle	37 years	71,727
12	Camden	Kent	36.5 years	4,106
13	Elsmere	New Castle	35.5 years	6,203
14	Georgetown	Sussex	35.4 years	7,660
15	Dover	Kent	34.7 years	39,837
16	Smyrna	Kent	34.3 years	13,165
17	Laurel	Sussex	33 years	4,152
18	Harrington	Kent	32.2 years	3,838
19	Newark	New Castle	22.1 years	30,330

Top Delaware Counties

Counties ranked by highest median age.

1. Sussex County51.9 years 2. New Castle County39.3 years 3. Kent County38.8 years

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, “Oldest Cities in Delaware by Median Age”, https://gismap.land/rankings/delaware/oldest-cities. Figures from U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.

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