Town · Maine
Carthage, Maine
Carthage, town, in Franklin County, Maine. Carthage had 509 residents on July 1, 2025 by the Census Bureau's estimate, up 1.0% since 2020; the 2020 Census counted 509 and the ACS 2020-2024 5-year estimates put it at 845 (±269). GEOID 2300710915.
Residents, July 2025 estimate
509
Census Bureau estimate (no margin published)
2020 Census count: 509 · ACS 2020-2024: 845 ±269
Median household income
$79,107
±$17,968 (90% margin)
Maine: $74,733
Median home value
$144,300
±$40,611 (90% margin)
Maine: $296,600
Median gross rent
$811
±$262 (90% margin)
Maine: $1,139
Where is Carthage and what county is it in?
Carthage is a town in Franklin County, Maine. It covers 33.3 square miles of land, 15 residents per square mile in 2020.
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Carthage, and is it growing?
The Census Bureau estimates that 509 people lived in Carthage on July 1, 2025, up 1.0% since 2020, slower than Maine (+3.8%). The 2020 Census counted 509 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 845 (±269).
| Measure | Carthage | Franklin County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 845±269 | 30,413 | +344 |
| Households | 294±82 | 12,675 | +120 |
| Average household size | 2.86±0.67 | 2.30 | no clear change |
| Housing units | 380±90 | 21,234 | no clear change |
Carthage's population since 2000
From 520 in 2000 to 509 in 2025: down 2.1%. The 2000, 2010 and 2020 figures are census counts, each for Carthage as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Carthage?
The median resident of Carthage is 42.8 years old; 13.1% are under 18 and 10.7% are 65 or older. The largest group is non-Hispanic white residents at 92.5%, then non-Hispanic residents of two or more races at 4.6%.
| Measure | Carthage | Franklin County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 42.8±10.9 | 46.1 | no clear change |
| Under 18 years | 13.1%±6.2 pts | 17.1% | – |
| 65 years and over | 10.7%±4.6 pts | 23.7% | – |
| Male | 52.7%±6.9 pts | 49.0% | – |
| Hispanic or Latino (any race) | 0.8%±0.9 pts | 1.7% | – |
| White alone, not Hispanic | 92.5%±4.4 pts | 93.1% | −6.5 pts |
| Black or African American alone, not Hispanic | 1.9%±2.5 pts | 0.8% | – |
| Asian alone, not Hispanic | 0.0%±3.2 pts | 0.6% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.1%±0.2 pts | 0.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±3.2 pts | 0.0% | – |
| Two or more races, not Hispanic | 4.6%±3.6 pts | 3.3% | – |
| Some other race alone, not Hispanic | 0.0%±3.2 pts | 0.4% | – |
| Born outside the United States | 0.0%±3.2 pts | 2.7% | – |
| Speak a language other than English at home (age 5+) | 0.0%±3.3 pts | 3.4% | – |
| Civilian veterans (age 18+) | 3.8%±2.4 pts | 8.1% | – |
| With a disability | 16.8%±7.0 pts | 19.5% | – |
| No health insurance coverage | 14.4%±11.6 pts | 7.9% | – |
| High school graduate or higher (age 25+) | 90.3%±6.8 pts | 94.1% | – |
| Bachelor's degree or higher (age 25+) | 13.4%±5.5 pts | 32.0% | no clear change |
| Graduate or professional degree (age 25+) | 3.8%±2.7 pts | 12.3% | – |
| Lived in the same house a year earlier | 91.8%±7.0 pts | 88.5% | – |
| Moved from another state in the past year | 2.0%±2.3 pts | 2.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Carthage earn?
Half of Carthage's 294 households earn less than $79,107 a year (±$17,968), against $58,675 in Franklin County and $74,733 in Maine. In 2015-2019 it was $53,843 in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Carthage | Franklin County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $79,107±$17,968 | $58,675 | no clear change |
| Mean household income | $90,682±$16,512 | $80,070 | – |
| Per capita income | $34,857±$6,954 | $34,978 | no clear change |
| People below the poverty line | 3.6%±3.1 pts | 12.2% | – |
| Children under 18 below the poverty line | 0.0%±21.7 pts | 13.6% | – |
| Households receiving SNAP | 19.7%±14.5 pts | 15.4% | – |
| Households with a computer | 97.3%±2.4 pts | 93.2% | – |
| Households with a broadband subscription | 81.6%±9.2 pts | 85.1% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Carthage?
Owners occupy 88.1% of Carthage's occupied homes and renters 11.9%. The median owner-occupied home is valued at $144,300 by its owner (±$40,611). The median renter pays $811 a month including utilities.
| Measure | Carthage | Franklin County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $144,300±$40,611 | $194,700 | no clear change |
| Median gross rent | $811±$262 | $802 | no clear change |
| Renters paying 35% or more of income on rent | 0.0%±54.6 pts | 31.5% | – |
| Median monthly owner costs, with a mortgage | $1,469±$498 | $1,327 | – |
| Owner-occupied homes | 88.1%±6.6 pts | 76.3% | no clear change |
| Renter-occupied homes | 11.9%±6.6 pts | 23.7% | – |
| Housing units | 380±90 | 21,234 | no clear change |
| Homeowner vacancy rate | 0.0%±9.8 pts | 0.2% | – |
| Rental vacancy rate | 7.9%±16.1 pts | 1.2% | – |
| Single-family detached homes | 79.2%±11.5 pts | 74.8% | – |
| Mobile homes | 20.8%±11.5 pts | 9.1% | – |
| Built 2020 or later | 0.8%±1.4 pts | 0.5% | – |
| Built 2010 to 2019 | 14.2%±6.6 pts | 5.9% | – |
| Built 1939 or earlier | 10.8%±6.1 pts | 19.3% | – |
| Households with no vehicle | 5.8%±8.0 pts | 9.2% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Carthage work and get to work?
85.5% of Carthage's workers drive alone. The average trip to work takes 24.5 minutes.
| Measure | Carthage | Franklin County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 63.8%±9.6 pts | 56.7% | – |
| Unemployment rate | 1.3%±2.2 pts | 4.6% | – |
| Drove alone to work | 85.5%±10.0 pts | 72.3% | – |
| Carpooled | 4.3%±3.5 pts | 6.9% | – |
| Public transportation | 0.0%±6.0 pts | 0.1% | – |
| Walked | 0.2%±0.4 pts | 4.1% | – |
| Worked from home | 10.0%±9.1 pts | 13.0% | – |
| Mean travel time to work | 24.5 min±5.3 | 26.8 min | −7.2 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Carthage?
No census tract lies mostly in Carthage; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9706.02Franklin County | 2,697 | $54,306 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Carthage) · Census block assignment files
How does Carthage compare with other places in Maine?
By the Census Bureau's July 2025 estimates, Carthage is the 10,005th-most populous of the 16,079 U.S. towns and townships that have one and the 329th-most populous of 454 in Maine.
Carthage is not ranked by income or the other survey measures: those rankings include places of 1,000 or more residents (2020 Census) with a reliable estimate.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 329th | 454 |
Carthage's figures with every place in Maine (CSV)
Every place in Maine, sortable · Compare Carthage with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Carthage?
25 of the 57 figures for Carthage on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Carthage are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.