Town · New Hampshire
Langdon, New Hampshire
Langdon, town, in Sullivan County, New Hampshire. Langdon had 660 residents on July 1, 2025 by the Census Bureau's estimate, up 1.9% since 2020; the 2020 Census counted 651 and the ACS 2020-2024 5-year estimates put it at 805 (±165). GEOID 3301940900.
Residents, July 2025 estimate
660
Census Bureau estimate (no margin published)
2020 Census count: 651 · ACS 2020-2024: 805 ±165
Median household income
$97,917
±$30,724 (90% margin)
New Hampshire: $99,031
Median home value
$281,900
±$18,283 (90% margin)
New Hampshire: $402,500
Median gross rent
$1,417
±$285 (90% margin)
New Hampshire: $1,491
Where is Langdon and what county is it in?
Langdon is a town in Sullivan County, New Hampshire. It covers 16.2 square miles of land, 40 residents per square mile in 2020.
Langdon is in the Lebanon-Claremont, NH-VT micropolitan statistical area, which takes in 4 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Langdon, and is it growing?
The Census Bureau estimates that 660 people lived in Langdon on July 1, 2025, up 1.9% since 2020, slower than New Hampshire (+2.7%). The 2020 Census counted 651 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 805 (±165).
| Measure | Langdon | Sullivan County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 805±165 | 43,715 | no clear change |
| Households | 301±54 | 16,618 | no clear change |
| Average household size | 2.67±0.34 | 2.59 | no clear change |
| Housing units | 343±57 | 21,958 | no clear change |
Langdon's population since 2000
From 586 in 2000 to 660 in 2025: up 12.6%. The 2000, 2010 and 2020 figures are census counts, each for Langdon 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 Langdon?
The median resident of Langdon is 42.3 years old; 23.5% are under 18 and 26.2% are 65 or older. The largest group is non-Hispanic white residents at 96.6%, then non-Hispanic residents of two or more races at 2.2%.
| Measure | Langdon | Sullivan County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 42.3±12.6 | 47.0 | no clear change |
| Under 18 years | 23.5%±7.7 pts | 17.7% | – |
| 65 years and over | 26.2%±7.5 pts | 23.5% | – |
| Male | 50.8%±7.3 pts | 50.4% | – |
| Hispanic or Latino (any race) | 0.1%±0.3 pts | 2.1% | – |
| White alone, not Hispanic | 96.6%±3.1 pts | 91.4% | no clear change |
| Black or African American alone, not Hispanic | 1.0%±1.5 pts | 0.7% | – |
| Asian alone, not Hispanic | 0.0%±4.3 pts | 0.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±4.3 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±4.3 pts | 0.0% | – |
| Two or more races, not Hispanic | 2.2%±2.4 pts | 5.1% | – |
| Some other race alone, not Hispanic | 0.0%±4.3 pts | 0.3% | – |
| Born outside the United States | 0.5%±0.8 pts | 2.1% | – |
| Speak a language other than English at home (age 5+) | 1.6%±1.5 pts | 1.8% | – |
| Civilian veterans (age 18+) | 4.9%±2.3 pts | 10.1% | – |
| With a disability | 13.8%±4.8 pts | 16.5% | – |
| No health insurance coverage | 1.6%±1.7 pts | 6.0% | – |
| High school graduate or higher (age 25+) | 91.4%±4.6 pts | 92.1% | – |
| Bachelor's degree or higher (age 25+) | 26.5%±6.2 pts | 30.3% | no clear change |
| Graduate or professional degree (age 25+) | 9.2%±4.1 pts | 11.5% | – |
| Lived in the same house a year earlier | 96.8%±2.8 pts | 90.8% | – |
| Moved from another state in the past year | 0.5%±0.7 pts | 2.2% | – |
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 Langdon earn?
Half of Langdon's 301 households earn less than $97,917 a year (±$30,724), against $80,858 in Sullivan County and $99,031 in New Hampshire. In 2015-2019 it was $97,379 in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Langdon | Sullivan County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $97,917±$30,724 | $80,858 | no clear change |
| Mean household income | $198,805±$111,577 | $105,975 | – |
| Per capita income | $75,435±$37,808 | $44,514 | no clear change |
| People below the poverty line | 4.6%±3.5 pts | 10.1% | – |
| Children under 18 below the poverty line | 6.3%±7.6 pts | 12.1% | – |
| Households receiving SNAP | 3.0%±2.1 pts | 8.3% | – |
| Households with a computer | 90.4%±5.5 pts | 93.0% | – |
| Households with a broadband subscription | 89.4%±5.2 pts | 87.1% | – |
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 Langdon?
Owners occupy 91.4% of Langdon's occupied homes and renters 8.6%. The median owner-occupied home is valued at $281,900 by its owner (±$18,283). The median renter pays $1,417 a month including utilities.
| Measure | Langdon | Sullivan County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $281,900±$18,283 | $268,700 | no clear change |
| Median gross rent | $1,417±$285 | $1,211 | no clear change |
| Renters paying 35% or more of income on rent | 50.0%±34.8 pts | 43.3% | – |
| Median monthly owner costs, with a mortgage | $1,951±$285 | $1,904 | – |
| Owner-occupied homes | 91.4%±5.4 pts | 75.4% | no clear change |
| Renter-occupied homes | 8.6%±5.4 pts | 24.6% | – |
| Housing units | 343±57 | 21,958 | no clear change |
| Homeowner vacancy rate | 0.0%±11.7 pts | 0.7% | – |
| Rental vacancy rate | 0.0%±60.4 pts | 6.1% | – |
| Single-family detached homes | 93.3%±3.9 pts | 73.9% | – |
| Mobile homes | 5.5%±3.5 pts | 7.7% | – |
| Built 2020 or later | 0.0%±9.7 pts | 0.9% | – |
| Built 2010 to 2019 | 6.4%±4.1 pts | 3.8% | – |
| Built 1939 or earlier | 16.6%±6.8 pts | 23.7% | – |
| Households with no vehicle | 0.7%±1.1 pts | 5.3% | – |
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 Langdon building?
Builders took permits for 2 new housing units in Langdon in 2025 (2 in single-family houses), 3.0 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 Langdon work and get to work?
72.4% of Langdon's workers drive alone and 14.6% work from home. The average trip to work takes 30.3 minutes.
| Measure | Langdon | Sullivan County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 66.9%±8.1 pts | 59.9% | – |
| Unemployment rate | 3.4%±2.5 pts | 3.1% | – |
| Drove alone to work | 72.4%±7.2 pts | 77.2% | – |
| Carpooled | 7.2%±3.5 pts | 8.4% | – |
| Public transportation | 0.0%±8.6 pts | 0.1% | – |
| Walked | 3.3%±3.9 pts | 2.3% | – |
| Worked from home | 14.6%±5.4 pts | 10.2% | – |
| Mean travel time to work | 30.3 min±2.6 | 26.1 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 Langdon?
No census tract lies mostly in Langdon; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9756Sullivan County | 3,031 | $85,104 |
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 Langdon) · Census block assignment files
How does Langdon compare with other places in New Hampshire?
By the Census Bureau's July 2025 estimates, Langdon is the 9,196th-most populous of the 16,079 U.S. towns and townships that have one and the 198th-most populous of 221 in New Hampshire.
Langdon 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 | 198th | 221 |
Langdon's figures with every place in New Hampshire (CSV)
Every place in New Hampshire, sortable · Compare Langdon 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 Langdon?
22 of the 57 figures for Langdon 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 Langdon 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.