Town · Vermont
Kirby, Vermont
Kirby, town, in Caledonia County, Vermont. Kirby had 589 residents on July 1, 2025 by the Census Bureau's estimate, up 3.0% since 2020; the 2020 Census counted 575 and the ACS 2020-2024 5-year estimates put it at 756 (±206). GEOID 5000537900.
Residents, July 2025 estimate
589
Census Bureau estimate (no margin published)
2020 Census count: 575 · ACS 2020-2024: 756 ±206
Median household income
$54,792
±$21,199 (90% margin)
Vermont: $81,203
Median home value
$302,900
±$63,024 (90% margin)
Vermont: $316,600
Median gross rent
$1,250
±$326 (90% margin)
Vermont: $1,234
Where is Kirby and what county is it in?
Kirby is a town in Caledonia County, Vermont. It covers 24.7 square miles of land, 23 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 Kirby, and is it growing?
The Census Bureau estimates that 589 people lived in Kirby on July 1, 2025, up 3.0% since 2020, faster than Vermont (+0.2%). The 2020 Census counted 575 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 756 (±206).
| Measure | Kirby | Caledonia County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 756±206 | 30,475 | no clear change |
| Households | 263±63 | 13,091 | no clear change |
| Average household size | 2.87±0.48 | 2.26 | no clear change |
| Housing units | 279±64 | 16,164 | no clear change |
Kirby's population since 2000
From 456 in 2000 to 589 in 2025: up 29.2%. The 2000, 2010 and 2020 figures are census counts, each for Kirby 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 Kirby?
The median resident of Kirby is 38.8 years old; 30.0% are under 18 and 19.2% are 65 or older. The largest group is non-Hispanic white residents at 90.5%, then non-Hispanic residents of two or more races at 5.7%.
| Measure | Kirby | Caledonia County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 38.8±7.1 | 46.0 | no clear change |
| Under 18 years | 30.0%±7.7 pts | 18.4% | – |
| 65 years and over | 19.2%±8.0 pts | 23.1% | – |
| Male | 56.2%±5.3 pts | 50.5% | – |
| Hispanic or Latino (any race) | 2.4%±2.2 pts | 2.2% | – |
| White alone, not Hispanic | 90.5%±9.0 pts | 91.9% | no clear change |
| Black or African American alone, not Hispanic | 0.0%±3.2 pts | 0.7% | – |
| Asian alone, not Hispanic | 1.1%±1.7 pts | 0.4% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±3.2 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 | 5.7%±7.2 pts | 3.7% | – |
| Some other race alone, not Hispanic | 0.4%±0.5 pts | 0.9% | – |
| Born outside the United States | 2.6%±2.5 pts | 2.5% | – |
| Speak a language other than English at home (age 5+) | 5.4%±7.4 pts | 4.5% | – |
| Civilian veterans (age 18+) | 4.7%±2.3 pts | 6.6% | – |
| With a disability | 5.0%±2.7 pts | 17.7% | – |
| No health insurance coverage | 0.9%±0.9 pts | 4.0% | – |
| High school graduate or higher (age 25+) | 97.2%±1.6 pts | 93.7% | – |
| Bachelor's degree or higher (age 25+) | 32.4%±10.3 pts | 33.2% | no clear change |
| Graduate or professional degree (age 25+) | 16.3%±5.8 pts | 13.5% | – |
| Lived in the same house a year earlier | 97.6%±1.6 pts | 89.8% | – |
| Moved from another state in the past year | 0.9%±1.4 pts | 3.5% | – |
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 Kirby earn?
Half of Kirby's 263 households earn less than $54,792 a year (±$21,199), against $69,970 in Caledonia County and $81,203 in Vermont. In 2015-2019 it was $76,822 in 2024 dollars; the margins of error cannot tell the two periods apart. 21.3% of residents live below the poverty line.
| Measure | Kirby | Caledonia County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $54,792±$21,199 | $69,970 | no clear change |
| Mean household income | $102,538±$24,530 | $91,960 | – |
| Per capita income | $35,517±$9,935 | $40,336 | no clear change |
| People below the poverty line | 21.3%±14.0 pts | 11.7% | +17.2 pts |
| Children under 18 below the poverty line | 19.4%±23.6 pts | 12.8% | – |
| Households receiving SNAP | 6.1%±4.6 pts | 14.9% | – |
| Households with a computer | 79.5%±15.0 pts | 92.9% | – |
| Households with a broadband subscription | 79.8%±14.8 pts | 86.4% | – |
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 Kirby?
Owners occupy 93.5% of Kirby's occupied homes and renters 6.5%. The median owner-occupied home is valued at $302,900 by its owner (±$63,024). The median renter pays $1,250 a month including utilities.
| Measure | Kirby | Caledonia County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $302,900±$63,024 | $227,900 | no clear change |
| Median gross rent | $1,250±$326 | $920 | +$409 |
| Renters paying 35% or more of income on rent | 25.0%±25.7 pts | 38.2% | – |
| Median monthly owner costs, with a mortgage | $2,267±$424 | $1,605 | – |
| Owner-occupied homes | 93.5%±3.7 pts | 79.2% | no clear change |
| Renter-occupied homes | 6.5%±3.7 pts | 20.8% | – |
| Housing units | 279±64 | 16,164 | no clear change |
| Homeowner vacancy rate | 0.0%±9.7 pts | 0.8% | – |
| Rental vacancy rate | 0.0%±63.1 pts | 3.5% | – |
| Single-family detached homes | 78.9%±14.1 pts | 75.0% | – |
| Mobile homes | 16.8%±13.8 pts | 8.8% | – |
| Built 2020 or later | 0.4%±1.0 pts | 0.6% | – |
| Built 2010 to 2019 | 17.6%±11.2 pts | 6.2% | – |
| Built 1939 or earlier | 15.8%±7.6 pts | 32.9% | – |
| Households with no vehicle | 5.3%±6.6 pts | 6.7% | – |
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 many new homes is Kirby building?
Builders took permits for 2 new housing units in Kirby in 2025 (2 in single-family houses), 3.4 per 1,000 residents against 3.6 across Vermont.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Kirby work and get to work?
67.6% of Kirby's workers drive alone and 20.6% work from home. The average trip to work takes 33.5 minutes.
| Measure | Kirby | Caledonia County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 62.5%±12.6 pts | 62.6% | – |
| Unemployment rate | 0.6%±0.8 pts | 2.2% | – |
| Drove alone to work | 67.6%±7.9 pts | 69.9% | – |
| Carpooled | 6.4%±3.8 pts | 8.9% | – |
| Public transportation | 0.0%±7.3 pts | 0.2% | – |
| Walked | 5.2%±5.8 pts | 3.6% | – |
| Worked from home | 20.6%±7.4 pts | 15.1% | – |
| Mean travel time to work | 33.5 min±6.2 | 25.6 min | +8.9 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 Kirby?
No census tract lies mostly in Kirby; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9571Caledonia County | 2,073 | $81,932 |
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 Kirby) · Census block assignment files
How does Kirby compare with other places in Vermont?
By the Census Bureau's July 2025 estimates, Kirby is the 9,542nd-most populous of the 16,079 U.S. towns and townships that have one and the 199th-most populous of 237 in Vermont.
Kirby 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 | 199th | 237 |
Kirby's figures with every place in Vermont (CSV)
Every place in Vermont, sortable · Compare Kirby 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 Kirby?
22 of the 57 figures for Kirby 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 Kirby 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.