Town · New Hampshire
Columbia, New Hampshire
Columbia, town, in Coos County, New Hampshire. Columbia had 673 residents on July 1, 2025 by the Census Bureau's estimate, up 2.3% since 2020; the 2020 Census counted 659 and the ACS 2020-2024 5-year estimates put it at 683 (±145). GEOID 3300713940.
Residents, July 2025 estimate
673
Census Bureau estimate (no margin published)
2020 Census count: 659 · ACS 2020-2024: 683 ±145
Median household income
$57,917
±$13,190 (90% margin)
New Hampshire: $99,031
Median home value
$196,400
±$28,874 (90% margin)
New Hampshire: $402,500
Median gross rent
$792
±$333 (90% margin)
New Hampshire: $1,491
Where is Columbia and what county is it in?
Columbia is a town in Coos County, New Hampshire. It covers 60.8 square miles of land, 11 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 Columbia, and is it growing?
The Census Bureau estimates that 673 people lived in Columbia on July 1, 2025, up 2.3% since 2020, in line with New Hampshire (+2.7%). The 2020 Census counted 659 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 683 (±145).
| Measure | Columbia | Coos County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 683±145 | 31,271 | no clear change |
| Households | 313±58 | 14,002 | no clear change |
| Average household size | 2.15±0.29 | 2.08 | no clear change |
| Housing units | 494±85 | 20,637 | no clear change |
Columbia's population since 2000
From 750 in 2000 to 673 in 2025: down 10.3%. The 2000, 2010 and 2020 figures are census counts, each for Columbia 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 Columbia?
The median resident of Columbia is 51.8 years old; 17.4% are under 18 and 29.9% are 65 or older. The largest group is non-Hispanic white residents at 95.5%, then non-Hispanic residents of two or more races at 2.8%. 4.4% of residents were born outside the United States.
| Measure | Columbia | Coos County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 51.8±10.1 | 50.3 | no clear change |
| Under 18 years | 17.4%±6.2 pts | 16.0% | – |
| 65 years and over | 29.9%±6.5 pts | 26.1% | – |
| Male | 54.0%±4.5 pts | 52.2% | – |
| Hispanic or Latino (any race) | 1.2%±1.8 pts | 2.4% | – |
| White alone, not Hispanic | 95.5%±3.3 pts | 91.9% | no clear change |
| Black or African American alone, not Hispanic | 0.6%±1.2 pts | 2.0% | – |
| Asian alone, not Hispanic | 0.0%±5.0 pts | 0.1% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±5.0 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±5.0 pts | 0.0% | – |
| Two or more races, not Hispanic | 2.8%±2.3 pts | 2.9% | – |
| Some other race alone, not Hispanic | 0.0%±5.0 pts | 0.5% | – |
| Born outside the United States | 4.4%±2.4 pts | 2.8% | no clear change |
| Speak a language other than English at home (age 5+) | 10.4%±5.7 pts | 7.6% | – |
| Civilian veterans (age 18+) | 5.5%±2.0 pts | 10.3% | – |
| With a disability | 20.9%±5.5 pts | 21.9% | – |
| No health insurance coverage | 9.2%±4.9 pts | 7.7% | no clear change |
| High school graduate or higher (age 25+) | 93.1%±3.4 pts | 90.4% | – |
| Bachelor's degree or higher (age 25+) | 14.5%±5.2 pts | 20.1% | no clear change |
| Graduate or professional degree (age 25+) | 4.4%±3.6 pts | 7.0% | – |
| Lived in the same house a year earlier | 88.8%±5.4 pts | 89.7% | – |
| Moved from another state in the past year | 4.2%±3.2 pts | 3.2% | – |
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 Columbia earn?
Half of Columbia's 313 households earn less than $57,917 a year (±$13,190), against $57,677 in Coos County and $99,031 in New Hampshire. In 2015-2019 it was $54,458 in 2024 dollars; the margins of error cannot tell the two periods apart. 10.7% of residents live below the poverty line.
| Measure | Columbia | Coos County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $57,917±$13,190 | $57,677 | no clear change |
| Mean household income | $82,361±$24,268 | $83,445 | – |
| Per capita income | $39,423±$10,998 | $37,679 | no clear change |
| People below the poverty line | 10.7%±6.7 pts | 13.2% | no clear change |
| Children under 18 below the poverty line | 12.6%±18.3 pts | 16.3% | – |
| Households receiving SNAP | 9.9%±5.7 pts | 12.6% | – |
| Households with a computer | 94.9%±3.4 pts | 92.1% | – |
| Households with a broadband subscription | 82.1%±9.4 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 Columbia?
Owners occupy 91.1% of Columbia's occupied homes and renters 8.9%. The median owner-occupied home is valued at $196,400 by its owner (±$28,874). The median renter pays $792 a month including utilities.
| Measure | Columbia | Coos County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $196,400±$28,874 | $188,900 | +$48,348 |
| Median gross rent | $792±$333 | $876 | no clear change |
| Renters paying 35% or more of income on rent | 9.1%±20.5 pts | 35.7% | – |
| Median monthly owner costs, with a mortgage | $1,152±$81 | $1,464 | – |
| Owner-occupied homes | 91.1%±6.2 pts | 74.2% | no clear change |
| Renter-occupied homes | 8.9%±6.2 pts | 25.8% | – |
| Housing units | 494±85 | 20,637 | no clear change |
| Homeowner vacancy rate | 0.0%±11.5 pts | 1.6% | – |
| Rental vacancy rate | 0.0%±58.2 pts | 3.0% | – |
| Single-family detached homes | 86.8%±5.2 pts | 68.4% | – |
| Mobile homes | 12.1%±5.3 pts | 10.1% | – |
| Built 2020 or later | 1.2%±1.3 pts | 0.6% | – |
| Built 2010 to 2019 | 3.6%±2.6 pts | 4.1% | – |
| Built 1939 or earlier | 14.0%±5.5 pts | 29.3% | – |
| Households with no vehicle | 3.8%±4.6 pts | 9.0% | – |
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 Columbia building?
Builders took permits for 0 new housing units in Columbia in 2025 (0 in single-family houses), 0.0 per 1,000 residents against 3.6 across New Hampshire.
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 Columbia work and get to work?
78.3% of Columbia's workers drive alone and 11.2% work from home. The average trip to work takes 20.2 minutes.
| Measure | Columbia | Coos County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 57.4%±7.4 pts | 52.9% | – |
| Unemployment rate | 3.9%±3.7 pts | 4.3% | – |
| Drove alone to work | 78.3%±8.4 pts | 75.9% | – |
| Carpooled | 3.0%±3.0 pts | 9.7% | – |
| Public transportation | 0.0%±10.9 pts | 0.1% | – |
| Walked | 3.9%±3.9 pts | 3.9% | – |
| Worked from home | 11.2%±7.0 pts | 8.0% | no clear change |
| Mean travel time to work | 20.2 min±4.0 | 23.1 min | no clear change |
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 Columbia?
No census tract lies mostly in Columbia; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9502Coos County | 2,671 | $52,255 |
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 Columbia) · Census block assignment files
How does Columbia compare with other places in New Hampshire?
By the Census Bureau's July 2025 estimates, Columbia is the 9,133rd-most populous of the 16,079 U.S. towns and townships that have one and the 196th-most populous of 221 in New Hampshire.
Columbia 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 | 196th | 221 |
Columbia's figures with every place in New Hampshire (CSV)
Every place in New Hampshire, sortable · Compare Columbia 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 Columbia?
21 of the 57 figures for Columbia 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 Columbia 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.