Share of the population by age and sex, five-year groups

Population of Maine, 2010–2025 · click to pick a year
Estimates up to 2019 are built on the 2010 Census, those from 2020 on the 2020 Census. A line that steps up or down between 2019 and 2020 reflects this re-basing, not a sudden change in population.

Year

-5 -1   2020  +1 +5

1,364,546 people lived in Maine on July 1, 2020: the 42nd-largest population among the 50 states and the District of Columbia. The median age was 45.0 years (United States: 38.7); more residents are 65 or older (21.9%) than under 15 (15.2%): an ageing, top-heavy pyramid. There were 96.1 men for every 100 women. Since 2010 the population has grown by 2.8%. Source: U.S. Census Bureau, Population Estimates Program, Vintage 2025 estimates (resident population on July 1; public domain). Median age, shares, dependency ratios and rankings are calculated by PopulationPyramid.net from these estimates; the Census Bureau does not endorse this site.

Key indicators, 2020
Population
1,364,546
Rank by population
42nd of 51
Median age
45.0
Men per 100 women
96.1
Under 15
15.2%
15–64
62.9%
65 and over
21.9%
Child dependency
24.1
Old-age dependency
34.8
Change since 2010
+2.8%
Dependency ratios count children under 15 or adults 65 and over per 100 residents aged 15 to 64.
Show the population by age group, 2020
AgeMenWomenTotalShare
0-432,30530,73263,0374.6%
5-935,14333,42668,5695.0%
10-1438,68836,47175,1595.5%
15-1941,25738,96480,2215.9%
20-2438,30637,18875,4945.5%
25-2938,45037,73376,1835.6%
30-3441,65741,89383,5506.1%
35-3940,71241,50282,2146.0%
40-4438,24338,97977,2225.7%
45-4939,78040,62880,4085.9%
50-5444,28946,23590,5246.6%
55-5951,06854,021105,0897.7%
60-6451,77856,174107,9527.9%
65-6946,91951,23698,1557.2%
70-7438,85942,34081,1996.0%
75-7924,75028,39453,1443.9%
80-8414,39818,63933,0372.4%
85+12,19821,19133,3892.4%
How Maine compares with similar-sized states, 2020
RankStateResidentsRelative
39 West Virginia 1,791,670
40 Hawaii 1,451,130
41 New Hampshire 1,378,752
42 Maine 1,364,546
43 Rhode Island 1,096,487
44 Montana 1,087,156
45 Delaware 991,890
Frequently asked questions about Maine's population
What is the population of Maine?
Maine had an estimated 1,364,546 residents on July 1, 2020, according to the U.S. Census Bureau, Population Estimates Program. That ranks 42nd among the 51 states and the District of Columbia.
What is the median age in Maine?
The median age in Maine was 45.0 years in 2020, the 1st oldest of the 51 states and DC. That is 6.3 years older than the national median of 38.7.
How many people in Maine are 65 or older?
About 298,924 residents of Maine (21.9%) were 65 or older in 2020, against 15.2% under 15 and 62.9% aged 15 to 64.
What does the population pyramid of Maine show?
In 2020, Maine: more residents are 65 or older (21.9%) than under 15 (15.2%): an ageing, top-heavy pyramid. There were 96.1 men for every 100 women.
How fast is the population of Maine changing?
The population of Maine grew by 2.8% between 2010 and 2020, and by 1.4% in the last year.
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