Census tract · Strafford County
Census Tract 812, Strafford County, New Hampshire
Census Tract 812, GEOID 33017081200, in Strafford County, New Hampshire, entirely within Dover. 5,264 residents in the ACS 2020-2024 5-year estimates (±553); the 2020 Census counted 5,188.
Residents, 2020-2024
5,264
±553 (90% margin)
2020 Census count: 5,188
Median household income
$120,661
±$9,892 (90% margin)
Strafford County: $88,570
Median home value
$451,700
±$41,696 (90% margin)
Strafford County: $362,800
Median gross rent
$1,470
±$392 (90% margin)
Strafford County: $1,488
Where is Census Tract 812?
Census Tract 812 is one of 30 census tracts in Strafford County, New Hampshire. It covers 5.08 square miles of land, 1,022 residents per square mile in 2020. Its GEOID, 33017081200, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Dover | 100% |
6 census tracts border Census Tract 812: Tract 1075 in Rockingham County ($161,927), Tract 802.02 ($123,265), Tract 811.01 ($85,528), Tract 811.02 ($126,250), Tract 813 ($83,264) and Tract 814 ($86,434). 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 812?
The 2020-2024 American Community Survey puts Census Tract 812's population at 5,264 (±553) in 2,448 households; the 2020 Census counted 5,188 residents and 2,399 housing units.
| Measure | Tract 812 | Dover |
|---|---|---|
| Total population | 5,264 ±553 | 33,364 |
| Households | 2,448 ±314 | 15,042 |
| Average household size | 2.12 ±0.16 | 2.15 |
| Housing units | 2,568 ±321 | 15,433 |
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 812?
The median resident of Census Tract 812 is 49.7 years old; 11.8% are under 18 and 22.8% are 65 or older. The largest group is non-Hispanic white residents at 91.9%, then non-Hispanic Asian residents at 3.1%. 5.6% of residents were born outside the United States.
| Measure | Tract 812 | Dover |
|---|---|---|
| Median age | 49.7 ±9.8 | 36.9 |
| Under 18 years | 11.8% ±1.7 pts | 16.9% |
| 65 years and over | 22.8% ±4.9 pts | 16.8% |
| Hispanic or Latino (any race) | 1.1% ±1.2 pts | 3.5% |
| White alone, not Hispanic | 91.9% ±3.9 pts | 85.3% |
| Black or African American alone, not Hispanic | 1.3% ±2.1 pts | 1.2% |
| Asian alone, not Hispanic | 3.1% ±2.9 pts | 4.8% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.7 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.7 pts | 0.0% |
| Two or more races, not Hispanic | 1.1% ±1.5 pts | 4.5% |
| Some other race alone, not Hispanic | 1.4% ±1.6 pts | 0.7% |
| Born outside the United States | 5.6% ±3.1 pts | 6.0% |
| Speak a language other than English at home (age 5+) | 4.8% ±3.4 pts | 7.7% |
| Civilian veterans (age 18+) | 6.2% ±2.9 pts | 5.5% |
| With a disability | 11.0% ±4.5 pts | 12.0% |
| No health insurance coverage | 5.7% ±4.0 pts | 6.3% |
| High school graduate or higher (age 25+) | 96.7% ±2.2 pts | 96.8% |
| Bachelor's degree or higher (age 25+) | 46.8% ±9.1 pts | 52.0% |
| Graduate or professional degree (age 25+) | 19.2% ±5.1 pts | 18.2% |
| Lived in the same house a year earlier | 87.5% ±7.4 pts | 82.5% |
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 Census Tract 812 earn?
Half of the 2,448 households in Census Tract 812 earn less than $120,661 a year (±$9,892), against $88,570 across Strafford County: 7th highest of the county's 27 tracts with a reliable estimate.
| Measure | Tract 812 | Dover |
|---|---|---|
| Median household income | $120,661 ±$9,892 | $94,829 |
| Mean household income | $142,837 ±$21,753 | $116,147 |
| Per capita income | $66,268 ±$8,868 | $52,795 |
| People below the poverty line | 3.4% ±2.5 pts | 8.3% |
| Children under 18 below the poverty line | 0.0% ±5.5 pts | 6.4% |
| Households receiving SNAP | 0.6% ±0.9 pts | 6.0% |
| Households with a computer | 98.2% ±1.8 pts | 97.1% |
| Households with a broadband subscription | 97.4% ±2.2 pts | 95.4% |
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 Census Tract 812?
Owners occupy 78.4% of Census Tract 812's occupied homes and renters 21.6%. The median owner-occupied home is valued at $451,700 by its owner (±$41,696). The median renter pays $1,470 a month including utilities, and 20.4% of renters pay 35% or more of their income on rent.
| Measure | Tract 812 | Dover |
|---|---|---|
| Median home value (owner-occupied) | $451,700 ±$41,696 | $436,700 |
| Median gross rent | $1,470 ±$392 | $1,607 |
| Renters paying 35% or more of income on rent | 20.4% ±13.0 pts | 39.6% |
| Median monthly owner costs, with a mortgage | $2,680 ±$216 | $2,541 |
| Owner-occupied homes | 78.4% ±5.7 pts | 52.7% |
| Renter-occupied homes | 21.6% ±5.7 pts | 47.3% |
| Housing units | 2,568 ±321 | 15,433 |
| Single-family detached homes | 57.8% ±8.5 pts | 41.1% |
| Mobile homes | 7.4% ±5.5 pts | 2.4% |
| Built 2020 or later | 0.4% ±0.6 pts | 1.4% |
| Built 2010 to 2019 | 13.7% ±6.2 pts | 9.1% |
| Built 1939 or earlier | 25.6% ±9.5 pts | 25.9% |
| Households with no vehicle | 3.3% ±3.6 pts | 5.0% |
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 do people in Census Tract 812 get to work?
74.0% of Census Tract 812's workers drive alone and 17.5% work from home. The average trip to work takes 21.0 minutes.
| Measure | Tract 812 | Dover |
|---|---|---|
| In the labor force (age 16+) | 72.6% ±6.4 pts | 72.7% |
| Unemployment rate | 5.6% ±4.8 pts | 4.1% |
| Drove alone to work | 74.0% ±6.7 pts | 69.1% |
| Carpooled | 1.9% ±1.7 pts | 5.0% |
| Public transportation | 0.9% ±1.5 pts | 2.8% |
| Walked | 2.7% ±3.1 pts | 3.1% |
| Worked from home | 17.5% ±5.8 pts | 18.6% |
| Mean travel time to work | 21.0 min ±4.0 | 22.7 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 812 compare with the other tracts in Strafford County?
Among Strafford County's tracts with a reliable estimate, Census Tract 812 ranks as shown below (1 = highest).
| Measure | In Strafford County | In Dover |
|---|---|---|
| Population | 9th of 30 | 4th of 7 |
| Residents per square mile | 11th of 30 | 5th of 7 |
| Median household income | 7th of 27 | 3rd of 7 |
| Per capita income | 3rd of 30 | 1st of 7 |
| Median home value | 8th of 30 | 3rd of 7 |
| Median gross rent | 16th of 29 | 5th of 7 |
| Bachelor's degree or higher | 12th of 30 | 7th of 7 |
| Median age | 3rd of 30 | 1st of 7 |
| Owner-occupied share | 13th of 30 | 2nd of 7 |
The tracts next to it on Strafford County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 816 | 4th | $124,831±$25,695 · within the margin of this tract |
| Tract 802.02 | 5th | $123,265±$33,097 · within the margin of this tract |
| Tract 860 | 6th | $122,105±$22,144 · within the margin of this tract |
| Tract 812 | 7th | $120,661±$9,892 |
| Tract 850.02 | 8th | $118,018±$12,413 · within the margin of this tract |
| Tract 850.01 | 9th | $100,592±$17,517 · within the margin of this tract |
| Tract 885 | 10th | $100,551±$6,289 |
"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 812?
4 of the 18 figures for Census Tract 812 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