Cumberland County, Maine Population 2024

311,623

Cumberland County, Maine's estimated 2024 population is 311,623 with a growth rate of 0.45% in the past year according to the most recent United States census data. Cumberland County, Maine is the largest county in Maine. The 2010 population was 281,481 and has seen a growth of 10.71% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
2029318,5881,3930.44%
2028317,1951,3930.44%
2027315,8021,3930.44%
2026314,4091,3930.45%
2025313,0161,3930.45%
2024311,6231,3930.45%
2023310,2301,3930.45%
2022308,8372,7300.89%
2021306,1072,5220.83%
2020303,5857,5332.54%
2019296,0521,6890.57%
2018294,3631,8140.62%
2017292,5491,0270.35%
2016291,5221,8180.63%
2015289,7041,4300.5%
2014288,2742,5930.91%
2013285,6811,9390.68%
2012283,7429890.35%
2011282,7531,2720.45%
2010281,48100%
1990243,13527,34612.67%
1980215,78923,26112.08%
1970192,5289,7775.35%
1960182,75113,5508.01%
1950169,20123,20115.89%
1940146,00011,3558.43%
1930134,64510,2698.26%
1920124,37612,36211.04%
1910112,01411,32511.25%
1900100,6899,74010.71%
189090,9494,5905.32%
188086,3594,3385.29%
187082,0216,4308.51%
186075,591-3,947-4.96%
185079,53810,88015.85%
184068,6588,55614.24%
183060,10210,65721.55%
182049,4456,61415.44%
181042,8314,62312.1%
180038,20812,10346.36%
179026,105-292,483-91.81%
2024 Growth Rate
0.45% (1,393)
County Website
Cumberland County
State
Maine
County Seat
Portland
2020 Population
303,585
Area
836 mi²
Density
373 people/mi²
Growth Since 2020
2.65% (8,038)
Founded
November 1, 1760

Population by Race

Race
Population
Percentage (of total)
White269,93788.98%
Two or more races14,4054.75%
Black or African American9,6303.17%
Asian6,5762.17%
Other race2,1870.72%
Native American5240.17%
Native Hawaiian or Pacific Islander980.03%

White

Two or more races

Black or African American

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Cumberland County, Maine Population by Race

Cumberland County, Maine Population Pyramid 2024

Cumberland County, Maine Median Age

42.1

Total

40.6

Male

43.8

Female

Cumberland County, Maine Adults

There are 248,040 adults, (59,050 of whom are seniors) in Cumberland County, Maine.

Cumberland County, Maine Age Dependency

60.5

Age Dependency Ratio

31.2

Old Age Dependency Ratio

29.3

Child Dependency Ratio

Cumberland County, Maine Sex Ratio

Female155,29151.19%
Male148,06648.81%

Cumberland County, Maine Population by Age

Cumberland County, Maine Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All128,1842.369.930.1
Married61,8252.9687.112.9
Non Family52,3431.351.248.8
Female9,8473.0764.735.3
Male4,1693.1762.737.3

2.9

Average Family Size

2.3

Average Household Size

69.9%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Cumberland County, Maine Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade5,1202.3%
Associates Degree19,3328.7%
Bachelors Degree67,15830.21%
Graduate Degree45,38720.42%
High School Graduate45,86020.63%
Less Than 9th Grade3,2121.44%
Some College36,23116.3%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Cumberland County, Maine Educational Attainment by Sex (over 25)

Cumberland County, Maine Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White200,496194,248102,635
2+ Races8,3668,0313,806
Black5,0334,1301,819
Asian4,7694,1342,405
Hispanic4,0773,8892,099
Other Race1,3941,304753
Native American37632668
Islander717120

The highest rate of high school graduation is among islander people with a rate of 100%.

The highest rate of bachelors degrees is among other race people with a rate of 54.02%.

Cumberland County, Maine Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$58,206$69,329$50,372
Graduate Degree$76,244$90,839$68,569
High School Graduate$39,336$45,519$33,890
Less Than 9th Grade$30,226$38,777$23,945
Overall$53,078$59,009$46,829
Some College$46,458$51,513$42,184

$53,078

Average Earnings

$59,009

Average Male

$46,829

Average Female

Cumberland County, Maine Earnings by Educational Attainment

Cumberland County, Maine Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Cumberland County, Maine Language

92.72% of Cumberland County, Maine residents speak only English, while 7.28% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 3.4% of the population.

Cumberland County, Maine Language

Cumberland County, Maine Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White260,32715,9766.14%
Black8,9362,16624.24%
Multiple13,7051,65612.08%
Asian6,18980212.96%
Hispanic6,35368210.74%
Other2,1251476.92%
Native4949218.62%

7.21%

Overall Poverty Rate

6.71%

Male Poverty Rate

7.69%

Female Poverty Rate

Poverty in Cumberland County, Maine

The race most likely to be in poverty in Cumberland County, Maine is Black, with 24.24% below the poverty level.

The race least likely to be in poverty in Cumberland County, Maine is White, with 6.14% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.94%. Among those working part-time, it was 9.45%, and for those that did not work, the poverty rate was 16.57%.

Cumberland County, Maine Poverty

rate

Rate
Poverty
Less Than 9th Grade25%
High School10.98%
Some College7.49%
Bachelors or Greater3.65%

Cumberland County, Maine Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed17.59%
Male Unemployed17%
Female Employed3.54%
Male Employed3.04%

Cumberland County, Maine Poverty Rate by Employment Status and Sex

Cumberland County, Maine Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$114,469$151,344
Households$87,710$119,466
Married Families$128,959$166,206
Non Families$51,456$69,168

mean

median

Income by Household Type

Cumberland County, Maine Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

50.0%

Overall Marriage Rate

51.8%

Male Marriage Rate

48.3%

Female Marriage Rate

Cumberland County, Maine Married by Age and Sex

male

female

Cumberland County, Maine Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

Cumberland County, Maine Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Cumberland County, Maine Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

17,689

Number of Veterans

16,280

Male Veterans

1,409

Female Veterans

War
Veterans
Vietnam6,545
First Gulf War3,838
Second Gulf War3,220
Korea1,245
World War II310

Cumberland County, Maine Veterans by War

count

Age Group
Veterans
75+5,211
65 to 744,294
35 to 543,945
55 to 643,102
18 to 341,137

Cumberland County, Maine Veterans by Age

count

Name
Veterans
% of Total
White16,6117.42%
2+ Races6156.29%
Hispanic2956.07%
Black2774.51%
Asian1182.11%
Other Race684.21%

Cumberland County, Maine Veterans by Race

Cumberland County, Maine Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

4.87%

Veteran Poverty Rate

25.9%

Veteran Disability Rate

Cumberland County, Maine Veterans by Education

LaborForceParticipation

68.1%

Labor Force Participation

65.7%

Employment Rate

3.2%

Unemployment Rate

Cumberland County, Maine Employment by Age

LaborForceParticipation

Cumberland County, Maine Employment by Race

LaborForceParticipation

Cumberland County, Maine Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

54.56%

Born in Cumberland County, Maine

93.64%

Native Born

6.36%

Foreign Born

3.04%

Non Citizen

3.32%

Naturalized

Place of Birth

93.64% of Cumberland County, Maine residents were born in the United States, with 54.56% having been born in Maine. 3.04% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Africa.

Cumberland County, Maine Place of Birth

Sources