Rank	City	2023 Population (Est.)	Growth Rate (Annual)
1	Wilmington	71,606	0.5%
2	Dover	39,768	0.3%
3	Newark	30,136	-1.9%
4	Middletown	24,709	2.9%
5	Smyrna	13,250	1.2%
6	Milford	13,018	7.3%
7	Seaford	8,521	3.3%
8	Georgetown	7,677	3.5%
9	Millsboro	7,439	3.8%
10	Elsmere	6,162	-0.3%
11	New Castle	5,522	-0.1%
12	Clayton	4,215	2.9%
13	Camden	4,201	6.3%
14	Laurel	4,167	3.3%
15	Harrington	3,812	0.6%
16	Milton	3,581	4.0%
17	Lewes	3,516	3.0%
18	Selbyville	3,104	3.5%
19	Ocean View	2,858	3.7%
20	Townsend	2,806	1.3%
21	Bridgeville	2,757	3.5%
22	Delmar	2,157	3.0%
23	Cheswold	2,012	2.1%
24	Millville	1,993	4.0%
25	Delaware City	1,893	0.4%
26	Wyoming	1,872	4.9%
27	Felton	1,344	1.1%
28	Blades	1,261	3.0%
29	Bellefonte	1,227	0.2%
30	Rehoboth Beach	1,189	3.4%
31	Frederica	1,105	1.3%
32	Greenwood	1,063	3.6%
33	Bethany Beach	1,031	3.5%
34	Dagsboro	936	3.3%
35	Newport	898	-0.2%
36	Frankford	855	3.5%
37	Ellendale	528	3.5%
38	South Bethany	491	3.7%
39	Arden	430	0.2%
40	Houston	394	0.8%
41	Dewey Beach	383	3.1%
42	Fenwick Island	367	3.3%
43	Odessa	365	0.1%
44	Bowers	281	0.9%
45	Magnolia	281	1.1%
46	Ardentown	254	–
47	Bethel	252	2.5%
48	Slaughter Beach	235	3.6%
49	Ardencroft	228	0.4%
50	Kenton	222	2.3%
51	Little Creek	198	1.3%
52	Woodside	193	1.1%
53	Leipsic	183	1.1%
54	Henlopen Acres	147	2.8%
55	Viola	145	1.8%
56	Farmington	97	3.2%
57	Hartly	75	2.8%