USA: Delaware

flag Contents: Delaware (State)

Capital: Dover

989,950 Population [2020] – census

1,051,917 Population [2025] – estimate

5,047km² Area

208.4/km² Density [2025]

Counties

The population of all counties in the State of Delaware according to census results and latest offcial estimates.

Name	Status	Population Census 1990-04-01	Population Census 2000-04-01	Population Census 2010-04-01	Population Census 2020-04-01	Population Estimate 2025-07-01
Kent	County	110,993	126,697	162,310	181,849	192,690	→
New Castle	County	441,946	500,265	538,479	570,722	588,093	→
Sussex	County	113,229	156,638	197,145	237,379	271,134	→
Delaware	State	666,168	783,600	897,934	989,950	1,051,917

Contents: Incorporated Places

The population of all incorporated places in the State of Delaware according to census results and latest offcial estimates.

The Details icon links to further information about a selected place including its population structure (gender, age groups, age distribution, urbanization, »race«, ethnicity).

Name	Status	County	Population Census 1990-04-01	Population Census 2000-04-01	Population Census 2010-04-01	Population Census 2020-04-01	Population Estimate 2025-07-01
Arden	Village	New Castle	479	476	427	433	442	→
Ardencroft	Village	New Castle	280	235	211	228	232	→
Ardentown	Village	New Castle	327	297	271	252	257	→
Bellefonte	Town	New Castle	1,271	1,260	1,193	1,284	1,313	→
Bethany Beach	Town	Sussex	321	901	1,054	949	1,104	→
Bethel	Town	Sussex	171	170	177	237	274	→
Blades	Town	Sussex	835	1,109	1,240	1,184	1,372	→
Bowers	Town	Kent	192	299	336	274	290	→
Bridgeville	Town	Sussex	1,425	1,545	2,008	2,574	2,997	→
Camden	Town	Kent	2,715	2,527	3,440	3,703	4,176	→
Cheswold	Town	Kent	637	664	1,494	1,927	2,653	→
Clayton	Town	Kent / New Castle	1,244	1,509	2,935	3,961	4,527	→
Dagsboro	Town	Sussex	422	530	788	846	983	→
Delaware City	City	New Castle	1,710	1,458	1,780	1,882	1,939	→
Delmar	Town	Sussex	1,092	1,687	1,582	2,058	2,366	→
Dewey Beach	Town	Sussex	205	295	339	358	416	→
Dover	City	Kent	27,913	32,269	35,795	39,502	40,592	→
Ellendale	Town	Sussex	374	393	370	507	591	→
Elsmere	Town	New Castle	5,906	5,903	5,975	6,228	6,196	→
Farmington	Town	Kent	174	75	110	89	101	→
Felton	Town	Kent	820	853	1,282	1,312	1,386	→
Fenwick Island	Town	Sussex	185	344	378	342	398	→
Frankford	Town	Sussex	653	725	844	801	935	→
Frederica	Town	Kent	755	679	760	1,089	1,155	→
Georgetown	Town	Sussex	4,104	4,789	6,434	7,177	8,291	→
Greenwood	Town	Sussex	580	864	973	990	1,153	→
Harrington	City	Kent	2,739	3,082	3,561	3,785	3,974	→
Hartly	Town	Kent	102	83	68	71	79	→
Henlopen Acres	Town	Sussex	107	147	122	137	159	→
Houston	Town	Kent	420	415	369	385	405	→
Kenton	Town	Kent	230	246	243	218	231	→
Laurel	Town	Sussex	3,233	3,847	3,737	3,934	4,557	→
Leipsic	Town	Kent	227	194	186	187	197	→
Lewes	City	Sussex	2,563	3,038	2,847	3,335	3,826	→
Little Creek	Town	Kent	123	210	215	189	199	→
Magnolia	Town	Kent	211	199	267	278	291	→
Middletown	Town	New Castle	4,245	6,737	18,871	23,193	25,798	→
Milford	City	Sussex / Kent	6,760	7,487	9,586	11,166	14,723	→
Millsboro	Town	Sussex	1,861	2,467	3,856	6,773	7,890	→
Millville	Town	Sussex	437	579	532	1,835	2,145	→
Milton	Town	Sussex	1,481	1,798	2,579	3,317	3,860	→
New Castle	City	New Castle	5,698	4,952	5,117	5,544	5,726	→
Newark	City	New Castle	25,153	29,360	31,776	30,620	30,359	→
Newport	Town	New Castle	1,252	1,033	907	910	906	→
Ocean View	Town	Sussex	675	1,149	1,831	2,665	3,107	→
Odessa	Town	New Castle	305	307	359	362	360	→
Rehoboth Beach	City	Sussex	1,253	1,438	1,319	1,128	1,309	→
Seaford	City	Sussex	6,022	7,073	6,892	7,935	9,165	→
Selbyville	Town	Sussex	1,502	1,931	2,157	2,901	3,381	→
Slaughter Beach	Town	Sussex	114	194	206	220	255	→
Smyrna	Town	Kent / New Castle	6,473	6,695	10,047	12,885	13,340	→
South Bethany	Town	Sussex	148	474	449	462	538	→
Townsend	Town	New Castle	389	357	2,041	2,723	2,985	→
Viola	Town	Kent	210	160	152	139	145	→
Wilmington	City	New Castle	71,493	72,561	70,941	70,916	73,512	→
Woodside	Town	Kent	140	185	176	186	200	→
Wyoming	Town	Kent	1,050	1,209	1,317	1,679	1,865	→

Source: U.S. Census Bureau.

Explanation: Latest available rebased population figures are used. In case of significant changes, they were recalculated by using census block data.

Further information about the population structure:

Gender (C 2020)
Males	476,719
Females	513,229

Age Groups (C 2020)
0-17 years	206,405
18-64 years	588,966
65+ years	194,577

Age Distribution (C 2020)
80+ years	40,795
70-79 years	89,906
60-69 years	134,464
50-59 years	132,731
40-49 years	111,096
30-39 years	122,917
20-29 years	125,906
10-19 years	123,983
0-9 years	108,150

Urbanization (C 2020)
Rural	172,131
Urban	817,817

»Race« (C 2020)
White	597,763
Black/African American	218,899
Indigenous	5,148
Asian	42,699
Pacific Islander	412
Some other	48,509
2 or more	76,518

Ethnicity (C 2020)
Hispanic or Latino	104,290
Other	885,658