Town · New Hampshire
Plainfield, New Hampshire
Plainfield, town, in Sullivan County, New Hampshire. Plainfield had 2,560 residents on July 1, 2025 by the Census Bureau's estimate, up 4.1% since 2020; the 2020 Census counted 2,459 and the ACS 2020-2024 5-year estimates put it at 2,522 (±21). GEOID 3301962340.
Residents, July 2025 estimate
2,560
Census Bureau estimate (no margin published)
2020 Census count: 2,459 · ACS 2020-2024: 2,522 ±21
Median household income
$122,656
±$13,190 (90% margin)
New Hampshire: $99,031
Median home value
$442,400
±$46,881 (90% margin)
New Hampshire: $402,500
Median gross rent
$1,674
±$181 (90% margin)
New Hampshire: $1,491
Where is Plainfield and what county is it in?
Plainfield is a town in Sullivan County, New Hampshire. It covers 52.2 square miles of land, 47 residents per square mile in 2020.
One place lies inside Plainfield: Plainfield (CDP, 178 in 2020).
Plainfield 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 Plainfield, and is it growing?
The Census Bureau estimates that 2,560 people lived in Plainfield on July 1, 2025, up 4.1% since 2020, faster than New Hampshire (+2.7%). The 2020 Census counted 2,459 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 2,522 (±21).
| Measure | Plainfield | Sullivan County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 2,522±21 | 43,715 | no clear change |
| Households | 893±93 | 16,618 | no clear change |
| Average household size | 2.70±0.27 | 2.59 | no clear change |
| Housing units | 1,057±128 | 21,958 | no clear change |
Plainfield's population since 2000
From 2,241 in 2000 to 2,560 in 2025: up 14.2%. The 2000, 2010 and 2020 figures are census counts, each for Plainfield 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 Plainfield?
The median resident of Plainfield is 38.9 years old; 23.4% are under 18 and 19.8% are 65 or older. The largest group is non-Hispanic white residents at 87.5%, then non-Hispanic residents of two or more races at 9.5%. 4.8% of residents were born outside the United States.
| Measure | Plainfield | Sullivan County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 38.9±6.5 | 47.0 | no clear change |
| Under 18 years | 23.4%±4.8 pts | 17.7% | – |
| 65 years and over | 19.8%±5.5 pts | 23.5% | – |
| Male | 48.7%±5.0 pts | 50.4% | – |
| Hispanic or Latino (any race) | 0.2%±0.3 pts | 2.1% | – |
| White alone, not Hispanic | 87.5%±6.3 pts | 91.4% | −7.4 pts |
| Black or African American alone, not Hispanic | 0.6%±0.9 pts | 0.7% | – |
| Asian alone, not Hispanic | 2.1%±1.8 pts | 0.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±1.4 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±1.4 pts | 0.0% | – |
| Two or more races, not Hispanic | 9.5%±5.7 pts | 5.1% | – |
| Some other race alone, not Hispanic | 0.0%±1.4 pts | 0.3% | – |
| Born outside the United States | 4.8%±2.4 pts | 2.1% | no clear change |
| Speak a language other than English at home (age 5+) | 3.6%±2.1 pts | 1.8% | – |
| Civilian veterans (age 18+) | 12.4%±5.9 pts | 10.1% | – |
| With a disability | 12.3%±5.6 pts | 16.5% | – |
| No health insurance coverage | 2.9%±2.9 pts | 6.0% | – |
| High school graduate or higher (age 25+) | 97.9%±1.3 pts | 92.1% | – |
| Bachelor's degree or higher (age 25+) | 46.7%±8.2 pts | 30.3% | no clear change |
| Graduate or professional degree (age 25+) | 25.3%±7.5 pts | 11.5% | – |
| Lived in the same house a year earlier | 94.3%±3.3 pts | 90.8% | – |
| Moved from another state in the past year | 2.4%±2.6 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 Plainfield earn?
Half of Plainfield's 893 households earn less than $122,656 a year (±$13,190), against $80,858 in Sullivan County and $99,031 in New Hampshire. In 2015-2019 it was $104,994 in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Plainfield | Sullivan County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $122,656±$13,190 | $80,858 | no clear change |
| Mean household income | $171,922±$29,700 | $105,975 | – |
| Per capita income | $61,750±$10,223 | $44,514 | no clear change |
| People below the poverty line | 5.2%±4.0 pts | 10.1% | – |
| Children under 18 below the poverty line | 0.0%±5.8 pts | 12.1% | – |
| Households receiving SNAP | 0.0%±3.8 pts | 8.3% | – |
| Households with a computer | 99.3%±1.0 pts | 93.0% | – |
| Households with a broadband subscription | 97.3%±2.1 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 Plainfield?
Owners occupy 87.3% of Plainfield's occupied homes and renters 12.7%. The median owner-occupied home is valued at $442,400 by its owner (±$46,881). The median renter pays $1,674 a month including utilities.
| Measure | Plainfield | Sullivan County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $442,400±$46,881 | $268,700 | no clear change |
| Median gross rent | $1,674±$181 | $1,211 | no clear change |
| Renters paying 35% or more of income on rent | 17.6%±20.5 pts | 43.3% | – |
| Median monthly owner costs, with a mortgage | $2,803±$193 | $1,904 | – |
| Owner-occupied homes | 87.3%±6.7 pts | 75.4% | no clear change |
| Renter-occupied homes | 12.7%±6.7 pts | 24.6% | – |
| Housing units | 1,057±128 | 21,958 | no clear change |
| Homeowner vacancy rate | 0.0%±4.4 pts | 0.7% | – |
| Rental vacancy rate | 9.6%±15.2 pts | 6.1% | – |
| Single-family detached homes | 83.4%±6.3 pts | 73.9% | – |
| Mobile homes | 4.9%±2.2 pts | 7.7% | – |
| Built 2020 or later | 2.2%±1.7 pts | 0.9% | – |
| Built 2010 to 2019 | 2.1%±2.1 pts | 3.8% | – |
| Built 1939 or earlier | 23.6%±6.7 pts | 23.7% | – |
| Households with no vehicle | 1.6%±1.4 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 Plainfield building?
Builders took permits for 3 new housing units in Plainfield in 2025 (3 in single-family houses; the permit office reported 9 of 12 months), 1.2 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 Plainfield work and get to work?
64.2% of Plainfield's workers drive alone and 18.1% work from home. The average trip to work takes 22.0 minutes.
| Measure | Plainfield | Sullivan County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 63.6%±6.8 pts | 59.9% | – |
| Unemployment rate | 0.6%±0.9 pts | 3.1% | – |
| Drove alone to work | 64.2%±9.3 pts | 77.2% | – |
| Carpooled | 10.4%±6.7 pts | 8.4% | – |
| Public transportation | 0.5%±0.7 pts | 0.1% | – |
| Walked | 1.5%±1.2 pts | 2.3% | – |
| Worked from home | 18.1%±8.7 pts | 10.2% | +10.2 pts |
| Mean travel time to work | 22.0 min±4.0 | 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 Plainfield?
No census tract lies mostly in Plainfield; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9751Sullivan County | 4,338 | $103,317 |
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 Plainfield) · Census block assignment files
How does Plainfield compare with other places in New Hampshire?
By the Census Bureau's July 2025 estimates, Plainfield is the 4,043rd-most populous of the 16,079 U.S. towns and townships that have one and the 111th-most populous of 221 in New Hampshire.
Plainfield ranks 44th of 235 places in New Hampshire with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 111th | 221 |
| Growth 2020-2025 (PEP) | 48th | 187 |
| Residents per square mile | 214th | 241 |
| Median household income | 44th | 235 |
| Per capita income | 44th | 240 |
| Median home value | 65th | 239 |
| Median gross rent | 45th | 221 |
| Bachelor's degree or higher | 59th | 239 |
| Median age | 203rd | 239 |
| Owner-occupied share | 78th | 241 |
| Work from home | 81st | 214 |
| Travel time to work | 203rd | 241 |
Plainfield's figures with every place in New Hampshire (CSV)
Every place in New Hampshire, sortable · Compare Plainfield 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 Plainfield?
20 of the 57 figures for Plainfield 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 Plainfield 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.