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Ranking · Maine · Population

Largest cities in Maine by population.

All 23 cities in Maine rank by 2025 resident population (U.S. Census Bureau Vintage 2025). Portland and Lewiston lead the state. Growth figures show the five-year change from the April 2020 census base to the July 2025 estimate — within a single vintage.

See also: every city in Maine →

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23 rows

All 23 cities in Maine by 2025 population.
Rank City 2025 pop 2020 base 5-yr Δ 5-yr Δ %
#1 Portland 69,91168,4061,505+2.2%
#2 Lewiston 38,86637,1301,736+4.7%
#3 Bangor 32,51831,749769+2.4%
#4 South Portland 27,00726,499508+1.9%
#5 Auburn 25,44124,0701,371+5.7%
#6 Sanford 22,66321,963700+3.2%
#7 Biddeford 22,39922,563-164-0.7%
#8 Westbrook 21,56520,4071,158+5.7%
#9 Saco 21,15920,380779+3.8%
#10 Augusta 19,15518,913242+1.3%
#11 Waterville 17,57916,673906+5.4%
#12 Brewer 9,6369,681-45-0.5%
#13 Ellsworth 8,8628,395467+5.6%
#14 Bath 8,8358,77659+0.7%
#15 Presque Isle 8,6948,784-90-1.0%
#16 Old Town 7,5897,434155+2.1%
#17 Caribou 7,3217,393-72-1.0%
#18 Rockland 7,1426,945197+2.8%
#19 Belfast 6,9886,94939+0.6%
#20 Gardiner 6,2065,961245+4.1%
#21 Calais 3,0833,0812+0.1%
#22 Hallowell 2,6242,56361+2.4%
#23 Eastport 1,2851,2841+0.1%
All 23 cities in Maine.

Methodology · Maine population ranking

Maine cities ranked by Census Vintage 2025 estimates.

Maine ranking uses Census Vintage 2025 Population Estimates Program data as of July 1, 2025. Ranks are state-scoped, using standard competition ranking ("1224"): tied cities share the lower rank and the next rank is skipped. Growth shown is 2020 base → 2025 — within-vintage; no 2010→2025 figures appear here per methodology §6.

This page covers every city for which Census publishes annual PEP estimates in Maine: standard incorporated places, any consolidated city-county governments, and (where applicable) DC or Urban Honolulu. Census-designated places (CDPs) are excluded with one named exception — Urban Honolulu. In states like Rhode Island, Connecticut, and Massachusetts, many residents live in towns and townships rather than incorporated cities; PEP does not publish annual estimates for those places (a V1 limitation), so the city counts for MCD-heavy states may be lower than expected.

Read the full methodology →

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All 23 Maine cities — plus all 50 states.

The national CSV includes every city, state column, and state_rank_pop_current. Public-domain. sha256 verified.

Download cities-v2025.csv