Biggest Cities in Maine - 2020 Census Data

Rank	City	2020 Population	Growth Rate (Annual)
1	Ellsworth	8,388	0.8%
2	Westbrook	20,404	1.6%
3	Saco	20,405	1.0%
4	South Portland	26,548	0.6%
5	Brewer	9,638	0.2%
6	Belfast	6,900	0.3%
7	Biddeford	22,491	0.6%
8	Portland	68,427	0.3%
9	Hallowell	2,567	0.8%
10	Auburn	23,944	0.4%
11	Lewiston	36,746	0.0%
12	Waterville	15,946	0.1%
13	Augusta	18,923	-0.1%
14	Bangor	31,765	-0.4%
15	Gardiner	5,965	0.3%
16	Bath	8,742	0.3%
17	Old Town	7,372	-0.6%
18	Presque Isle	8,808	-1.0%
19	Rockland	6,942	-0.5%
20	Caribou	7,382	-1.0%
21	Calais	3,023	-0.3%
22	Eastport	1,278	-0.4%