Rank	City	2019 Population (Est.)	Growth Rate (Annual)
1	Wilmington	70,635	-0.0%
2	Dover	38,079	0.7%
3	Newark	33,673	0.9%
4	Middletown	22,582	2.3%
5	Smyrna	11,580	1.8%
6	Milford	11,353	2.2%
7	Seaford	7,861	1.6%
8	Georgetown	7,427	1.8%
9	Elsmere	5,981	-0.3%
10	New Castle	5,529	0.6%
11	Millsboro	4,446	1.7%
12	Laurel	4,394	2.1%
13	Harrington	3,643	0.3%
14	Camden	3,501	0.1%
15	Clayton	3,392	1.9%
16	Lewes	3,233	2.1%
17	Milton	2,964	1.8%
18	Townsend	2,569	2.9%
19	Selbyville	2,496	1.8%
20	Bridgeville	2,366	1.8%
21	Ocean View	2,140	1.6%
22	Delaware City	1,824	0.9%
23	Delmar	1,796	1.5%
24	Cheswold	1,623	2.0%
25	Wyoming	1,536	2.0%
26	Rehoboth Beach	1,520	1.7%
27	Blades	1,442	1.9%
28	Felton	1,405	1.0%
29	Bethany Beach	1,222	1.8%
30	Bellefonte	1,167	-0.3%
31	Greenwood	1,118	1.8%
32	Newport	1,029	-0.3%
33	Frankford	971	1.7%
34	Dagsboro	900	1.4%
35	Frederica	827	0.8%
36	Millville	640	2.1%
37	South Bethany	519	1.8%
38	Arden	444	0.1%
39	Ellendale	437	1.7%
40	Fenwick Island	437	1.8%
41	Houston	404	1.0%
42	Dewey Beach	387	1.6%
43	Bowers	370	1.2%
44	Odessa	364	–
45	Magnolia	286	3.0%
46	Ardentown	269	0.2%
47	Kenton	265	0.2%
48	Little Creek	232	0.4%
49	Slaughter Beach	232	1.4%
50	Ardencroft	217	-0.8%
51	Leipsic	199	1.1%
52	Bethel	196	1.7%
53	Woodside	185	0.3%
54	Viola	164	0.5%
55	Henlopen Acres	141	1.8%
56	Farmington	116	0.7%
57	Hartly	75	0.2%