Rank	City	2023 Population (Est.)	Growth Rate (Annual)
1	Portland	68,361	-0.0%
2	Lewiston	38,512	2.4%
3	Bangor	31,611	-0.2%
4	South Portland	27,019	0.9%
5	Auburn	24,369	0.9%
6	Biddeford	22,463	-0.1%
7	Sanford	22,243	0.7%
8	Saco	20,883	1.2%
9	Westbrook	20,631	0.6%
10	Augusta	19,050	0.3%
11	Waterville	16,797	2.6%
12	Brewer	9,670	0.2%
13	Bath	8,795	0.3%
14	Ellsworth	8,707	1.9%
15	Presque Isle	8,688	-0.7%
16	Old Town	7,452	0.5%
17	Caribou	7,438	0.4%
18	Belfast	7,032	1.0%
19	Rockland	7,003	0.4%
20	Gardiner	6,103	1.2%
21	Calais	3,125	1.7%
22	Hallowell	2,601	0.7%
23	Eastport	1,302	0.9%