Census tract · Kennebec County
Census Tract 155, Kennebec County, Maine
Census Tract 155, GEOID 23011015500, in Kennebec County, Maine, partly within Mount Vernon, Rome and Vienna. 3,467 residents in the ACS 2020-2024 5-year estimates (±266); the 2020 Census counted 3,447.
Residents, 2020-2024
3,467
±266 (90% margin)
2020 Census count: 3,447
Median household income
$75,702
±$4,871 (90% margin)
Kennebec County: $69,077
Median home value
$289,600
±$30,535 (90% margin)
Kennebec County: $238,200
Median gross rent
$1,016
±$161 (90% margin)
Kennebec County: $992
Where is Census Tract 155?
Census Tract 155 is one of 36 census tracts in Kennebec County, Maine. It covers 87.61 square miles of land, 39 residents per square mile in 2020. Its GEOID, 23011015500, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Mount Vernon | 49% |
| Rome | 28% |
| Vienna | 24% |
5 census tracts border Census Tract 155: Tract 9711 in Franklin County ($62,206), Tract 145 ($75,956), Tract 150 ($86,504), Tract 160 ($88,338) and Tract 9670 in Somerset County ($74,519). The figure in brackets is each tract's median household income.
Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.
Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files
How many people live in Census Tract 155?
The 2020-2024 American Community Survey puts Census Tract 155's population at 3,467 (±266) in 1,484 households; the 2020 Census counted 3,447 residents and 2,508 housing units.
| Measure | Tract 155 | Kennebec County |
|---|---|---|
| Total population | 3,467 ±266 | 126,808 |
| Households | 1,484 ±146 | 54,312 |
| Average household size | 2.29 ±0.17 | 2.25 |
| Housing units | 2,545 ±157 | 63,521 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Census Tract 155?
The median resident of Census Tract 155 is 46.5 years old; 20.1% are under 18 and 24.9% are 65 or older. The largest group is non-Hispanic white residents at 93.4%, then Hispanic or Latino residents (of any race) at 2.4%. 1.2% of residents were born outside the United States.
| Measure | Tract 155 | Kennebec County |
|---|---|---|
| Median age | 46.5 ±3.3 | 43.7 |
| Under 18 years | 20.1% ±3.6 pts | 18.7% |
| 65 years and over | 24.9% ±3.5 pts | 21.1% |
| Hispanic or Latino (any race) | 2.4% ±1.6 pts | 2.3% |
| White alone, not Hispanic | 93.4% ±2.4 pts | 91.8% |
| Black or African American alone, not Hispanic | 0.1% ±0.2 pts | 0.9% |
| Asian alone, not Hispanic | 0.4% ±1.1 pts | 0.9% |
| American Indian and Alaska Native alone, not Hispanic | 0.2% ±0.2 pts | 0.2% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.8 pts | 0.0% |
| Two or more races, not Hispanic | 2.1% ±1.1 pts | 3.7% |
| Some other race alone, not Hispanic | 1.3% ±1.0 pts | 0.4% |
| Born outside the United States | 1.2% ±0.6 pts | 2.4% |
| Speak a language other than English at home (age 5+) | 5.6% ±3.5 pts | 4.8% |
| Civilian veterans (age 18+) | 11.1% ±2.1 pts | 9.5% |
| With a disability | 14.3% ±2.7 pts | 16.9% |
| No health insurance coverage | 2.4% ±1.0 pts | 5.8% |
| High school graduate or higher (age 25+) | 95.5% ±1.9 pts | 94.8% |
| Bachelor's degree or higher (age 25+) | 40.0% ±4.5 pts | 31.9% |
| Graduate or professional degree (age 25+) | 17.0% ±3.0 pts | 12.2% |
| Lived in the same house a year earlier | 94.9% ±1.8 pts | 88.0% |
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 Census Tract 155 earn?
Half of the 1,484 households in Census Tract 155 earn less than $75,702 a year (±$4,871), against $69,077 across Kennebec County: 18th highest of the county's 36 tracts with a reliable estimate. 8.0% of residents live below the poverty line.
| Measure | Tract 155 | Kennebec County |
|---|---|---|
| Median household income | $75,702 ±$4,871 | $69,077 |
| Mean household income | $103,800 ±$12,319 | $88,742 |
| Per capita income | $45,298 ±$5,105 | $38,597 |
| People below the poverty line | 8.0% ±2.9 pts | 11.6% |
| Children under 18 below the poverty line | 11.6% ±7.9 pts | 15.1% |
| Households receiving SNAP | 5.5% ±2.2 pts | 13.6% |
| Households with a computer | 97.4% ±1.4 pts | 95.0% |
| Households with a broadband subscription | 94.1% ±1.8 pts | 91.1% |
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 Census Tract 155?
Owners occupy 90.8% of Census Tract 155's occupied homes and renters 9.2%. The median owner-occupied home is valued at $289,600 by its owner (±$30,535). The median renter pays $1,016 a month including utilities, and 25.6% of renters pay 35% or more of their income on rent.
| Measure | Tract 155 | Kennebec County |
|---|---|---|
| Median home value (owner-occupied) | $289,600 ±$30,535 | $238,200 |
| Median gross rent | $1,016 ±$161 | $992 |
| Renters paying 35% or more of income on rent | 25.6% ±16.4 pts | 38.5% |
| Median monthly owner costs, with a mortgage | $1,565 ±$83 | $1,499 |
| Owner-occupied homes | 90.8% ±3.6 pts | 73.7% |
| Renter-occupied homes | 9.2% ±3.6 pts | 26.3% |
| Housing units | 2,545 ±157 | 63,521 |
| Single-family detached homes | 91.0% ±2.4 pts | 67.7% |
| Mobile homes | 7.8% ±2.3 pts | 9.9% |
| Built 2020 or later | 2.7% ±1.2 pts | 1.0% |
| Built 2010 to 2019 | 6.1% ±1.9 pts | 5.7% |
| Built 1939 or earlier | 18.7% ±4.1 pts | 22.5% |
| Households with no vehicle | 1.1% ±0.7 pts | 7.5% |
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 Census Tract 155 get to work?
71.5% of Census Tract 155's workers drive alone and 19.0% work from home. The average trip to work takes 36.8 minutes. The unemployment rate in 2020-2024 averaged 3.2%.
| Measure | Tract 155 | Kennebec County |
|---|---|---|
| In the labor force (age 16+) | 55.9% ±3.7 pts | 60.1% |
| Unemployment rate | 3.2% ±1.6 pts | 3.9% |
| Drove alone to work | 71.5% ±7.0 pts | 73.7% |
| Carpooled | 7.7% ±2.7 pts | 6.8% |
| Public transportation | 0.4% ±0.6 pts | 0.2% |
| Walked | 0.3% ±0.3 pts | 2.4% |
| Worked from home | 19.0% ±6.4 pts | 15.3% |
| Mean travel time to work | 36.8 min ±4.5 | 25.4 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
How does Census Tract 155 compare with the other tracts in Kennebec County?
Among Kennebec County's tracts with a reliable estimate, Census Tract 155 ranks as shown below (1 = highest).
| Measure | In Kennebec County |
|---|---|
| Population | 19th of 36 |
| Residents per square mile | 36th of 36 |
| Median household income | 18th of 36 |
| Per capita income | 4th of 36 |
| Median home value | 10th of 36 |
| Median gross rent | 14th of 33 |
| Poverty rate | 20th of 29 |
| Bachelor's degree or higher | 7th of 36 |
| Median age | 12th of 36 |
| Owner-occupied share | 6th of 36 |
The tracts next to it on Kennebec County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 140.01 | 15th | $78,173±$15,049 · within the margin of this tract |
| Tract 250.01 | 16th | $76,026±$11,922 · within the margin of this tract |
| Tract 145 | 17th | $75,956±$14,120 · within the margin of this tract |
| Tract 155 | 18th | $75,702±$4,871 |
| Tract 130 | 19th | $74,648±$18,044 · within the margin of this tract |
| Tract 180 | 20th | $72,300±$6,941 · within the margin of this tract |
| Tract 108.03 | 21st | $71,635±$14,675 · within the margin of this tract |
"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed
How reliable are the figures for Census Tract 155?
3 of the 18 figures for Census Tract 155 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.
A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). 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 · Check it at data.census.gov
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections