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
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South Portland covers 12.0 sq mi of land at 2223 people per square mile.
About South Portland, ME
The poverty rate is what most separates South Portland from the typical city: 2.3% of residents live below the federal poverty line, against 12.4% nationally. South Portland is a city in Maine with a population of 26,780. That makes it one of the ten largest cities in Maine in the country, at #4 by population.
Household earnings are middling, with a median of $84,563 — above the US median of $78,538. Poverty is among the lowest of comparable US cities, at 2.3% — below the national 12.4%. The typical home is valued at $405,800, with typical rent around $1,648.
About 49.3% of adults 25 and older have a bachelor’s degree, above the 35.0% national figure. Remote work is on the higher side at 15.9%, above the national 14.0%, and the average commute runs about 18 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
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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).
South Portland city, ME Climate
South Portland city, ME has an average annual temperature of 8°C (46°F) and receives about 1158 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
8°C
Avg Temp
1158
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -6° / 22° | 98 mm |
| February | -4° / 25° | 83 mm |
| March | 1° / 34° | 104 mm |
| April | 7° / 44° | 108 mm |
| May | 13° / 55° | 96 mm |
| June | 18° / 64° | 85 mm |
| July | 21° / 69° | 82 mm |
| August | 20° / 68° | 81 mm |
| September | 16° / 60° | 86 mm |
| October | 10° / 49° | 107 mm |
| November | 4° / 39° | 119 mm |
| December | -2° / 28° | 109 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit South Portland city, ME
The most comfortable months to visit South Portland city, ME are typically July, August and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 27°C high). The coldest is January (near -11°C low). November is usually the wettest month.
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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.