South Portland, Maine Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of South Portland, Maine is 26,780 as of the 2023 American Community Survey, making it the 4th-largest city in Maine. The median household income is $84,563, the median home value is $405,800, and the median age is 40.7.
The population has grown 8.0% since 2010 (24,994 → 26,994).
26,780
Population
2223
People / sq mi
$84,563
Median Income
$405,800
Median Home Value
South Portland covers 12.0 sq mi of land at 2223 people per square mile.
About South Portland, ME
South Portland is a city in Maine with a population of 26,780. It ranks #4 among cities in Maine by population. The median age is 40.7, older than the national median. The population is 48.4% male and 51.6% female.
The median household income in South Portland is $84,563, above the US median of $74,580. 2.3% of residents live below the federal poverty level. Home values sit at a median of $405,800, with monthly rent averaging $1,648. The homeownership rate of 60.3% is lower than the national rate of 64.8%.
Educational attainment in South Portland reflects 49.3% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 15.9% of workers primarily work from home, similar to the national work-from-home rate of 14.2%. The average commute is 17.9 minutes each way.
South Portland city Population History (2010-2024)
The city of South Portland city had a population of 24,994 in 2010 and 26,994 in 2024, a 8.0% growth over 14 years. The peak was 27,082 in 2021. Average annual growth rate: 0.56%.
26,994
Population (2024)
24,994
Population (2010)
27,082
Peak (2021)
0.56%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 24,994 |
| 2011 | 25,072 |
| 2012 | 25,100 |
| 2013 | 25,277 |
| 2014 | 25,481 |
| 2015 | 25,536 |
| 2016 | 25,556 |
| 2017 | 25,474 |
| 2018 | 25,616 |
| 2019 | 25,532 |
| 2020 | 26,581 |
| 2021 | 27,082 |
| 2022 | 27,060 |
| 2023 | 26,950 |
| 2024 | 26,994 |
Race & Ethnicity
| White | 83.6% |
| Black or African American | 6.9% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.8% |
| Two or More Races | 0.0% |
Economy & Income
$84,563
Median Household Income
$49,719
Per Capita Income
2.3%
Poverty Rate
2.0%
Unemployment Rate
Housing
$405,800
Median Home Value
$1,648
Median Rent
60.3%
Owner-Occupied
Education
95.4%
High School+
49.3%
Bachelor's+
Commute
1.1%
Drive Alone
71.9%
Public Transit
15.9%
Work From Home
17.9 min
Avg Commute
Community Profile
32.8%
Foreign Born
88.7%
Non-English at Home
5.8%
Veterans
12.7%
With Disability
94.2%
Health Insurance
94.8%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 27.9% |
| Finance, Insurance & Real Estate | 11.8% |
| Education, Health Care & Social Services | 11.0% |
| Information | 8.2% |
| Manufacturing | 8.0% |
| Retail Trade | 5.6% |
| Construction | 5.3% |
| Transportation & Warehousing | 2.9% |
| Arts, Entertainment & Food Services | 2.7% |
| Public Administration | 1.6% |
| Agriculture & Mining | 0.2% |
Largest cities in Maine
Largest counties in Maine
Part of Maine
Metro areas in Maine
City rankings
Frequently Asked Questions
South Portland, Maine has a population of 26,780 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 4th-largest city in Maine.
The median household income in South Portland, Maine is $84,563, with 2.3% of residents living below the federal poverty level.
The median home value in South Portland, Maine is $405,800, with median monthly rent at $1,648 and a homeownership rate of 60.3%.
The median age in South Portland, Maine is 40.7 years. The population is 48.4% male and 51.6% female.
The population has grown 8.0% since 2010 (24,994 → 26,994).
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Full rankings of Maine cities by population
Statewide data for Maine
Population, race, income, age, and trends across Maine
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.