Census tract · Hillsborough County
Census Tract 171.02, Hillsborough County, New Hampshire
Census Tract 171.02, GEOID 33011017102, in Hillsborough County, New Hampshire, entirely within Hollis. 4,930 residents in the ACS 2020-2024 5-year estimates (±345); the 2020 Census counted 4,699.
Residents, 2020-2024
4,930
±345 (90% margin)
2020 Census count: 4,699
Median household income
$173,333
±$40,288 (90% margin)
Hillsborough County: $103,545
Median home value
$675,900
±$37,404 (90% margin)
Hillsborough County: $421,100
Median gross rent
$1,942
±$421 (90% margin)
Hillsborough County: $1,623
Where is Census Tract 171.02?
Census Tract 171.02 is one of 103 census tracts in Hillsborough County, New Hampshire. It covers 19.37 square miles of land, 243 residents per square mile in 2020. Its GEOID, 33011017102, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Hollis | 100% |
7 census tracts border Census Tract 171.02: Tract 102.02 ($76,967), Tract 103.01 ($127,234), Tract 143.02 ($173,382), Tract 152 ($137,042), Tract 162.02 ($147,898), Tract 171.01 ($151,961) and Tract 180.02 ($170,471). 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 171.02?
The 2020-2024 American Community Survey puts Census Tract 171.02's population at 4,930 (±345) in 1,830 households; the 2020 Census counted 4,699 residents and 1,755 housing units.
| Measure | Tract 171.02 | Hollis |
|---|---|---|
| Total population | 4,930 ±345 | 8,603 |
| Households | 1,830 ±209 | 3,355 |
| Average household size | 2.69 ±0.26 | 2.56 |
| Housing units | 1,862 ±212 | 3,409 |
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 171.02?
The median resident of Census Tract 171.02 is 46.1 years old; 22.1% are under 18 and 20.4% are 65 or older. The largest group is non-Hispanic white residents at 85.4%, then non-Hispanic Asian residents at 4.1%. 6.5% of residents were born outside the United States.
| Measure | Tract 171.02 | Hollis |
|---|---|---|
| Median age | 46.1 ±4.7 | 49.4 |
| Under 18 years | 22.1% ±3.0 pts | 21.0% |
| 65 years and over | 20.4% ±5.4 pts | 23.3% |
| Hispanic or Latino (any race) | 0.0% ±0.7 pts | 0.3% |
| White alone, not Hispanic | 85.4% ±8.8 pts | 85.0% |
| Black or African American alone, not Hispanic | 3.9% ±3.7 pts | 5.0% |
| Asian alone, not Hispanic | 4.1% ±4.7 pts | 3.2% |
| American Indian and Alaska Native alone, not Hispanic | 0.1% ±0.1 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 | 3.5% ±3.1 pts | 4.6% |
| Some other race alone, not Hispanic | 3.1% ±4.7 pts | 1.8% |
| Born outside the United States | 6.5% ±4.1 pts | 7.7% |
| Speak a language other than English at home (age 5+) | 8.7% ±5.7 pts | 7.5% |
| Civilian veterans (age 18+) | 6.4% ±3.1 pts | 6.7% |
| With a disability | 10.8% ±4.3 pts | 10.7% |
| No health insurance coverage | 0.5% ±0.8 pts | 0.6% |
| High school graduate or higher (age 25+) | 97.0% ±2.3 pts | 96.8% |
| Bachelor's degree or higher (age 25+) | 53.7% ±8.6 pts | 57.3% |
| Graduate or professional degree (age 25+) | 29.7% ±7.0 pts | 33.3% |
| Lived in the same house a year earlier | 92.1% ±5.1 pts | 92.1% |
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 171.02 earn?
Half of the 1,830 households in Census Tract 171.02 earn less than $173,333 a year (±$40,288), against $103,545 across Hillsborough County: 4th highest of the county's 102 tracts with a reliable estimate.
| Measure | Tract 171.02 | Hollis |
|---|---|---|
| Median household income | $173,333 ±$40,288 | $168,883 |
| Mean household income | $207,244 ±$28,574 | $226,725 |
| Per capita income | $76,849 ±$8,795 | $88,164 |
| People below the poverty line | 1.8% ±1.9 pts | 1.9% |
| Children under 18 below the poverty line | 0.0% ±3.3 pts | 0.5% |
| Households receiving SNAP | 0.8% ±1.0 pts | 0.4% |
| Households with a computer | 96.2% ±3.8 pts | 97.3% |
| Households with a broadband subscription | 94.0% ±5.5 pts | 96.2% |
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 171.02?
Owners occupy 92.3% of Census Tract 171.02's occupied homes and renters 7.7%. The median owner-occupied home is valued at $675,900 by its owner (±$37,404). The median renter pays $1,942 a month including utilities.
| Measure | Tract 171.02 | Hollis |
|---|---|---|
| Median home value (owner-occupied) | $675,900 ±$37,404 | $675,900 |
| Median gross rent | $1,942 ±$421 | $1,598 |
| Renters paying 35% or more of income on rent | 9.3% ±15.9 pts | 19.8% |
| Median monthly owner costs, with a mortgage | $3,428 ±$757 | $3,479 |
| Owner-occupied homes | 92.3% ±4.8 pts | 91.7% |
| Renter-occupied homes | 7.7% ±4.8 pts | 8.3% |
| Housing units | 1,862 ±212 | 3,409 |
| Single-family detached homes | 88.8% ±5.6 pts | 88.8% |
| Mobile homes | 0.0% ±1.9 pts | 0.6% |
| Built 2020 or later | 0.4% ±0.7 pts | 2.1% |
| Built 2010 to 2019 | 3.0% ±2.3 pts | 6.0% |
| Built 1939 or earlier | 15.3% ±9.2 pts | 13.7% |
| Households with no vehicle | 0.0% ±1.9 pts | 0.9% |
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 171.02 get to work?
72.6% of Census Tract 171.02's workers drive alone and 21.3% work from home. The average trip to work takes 27.4 minutes.
| Measure | Tract 171.02 | Hollis |
|---|---|---|
| In the labor force (age 16+) | 73.7% ±6.1 pts | 68.8% |
| Unemployment rate | 1.6% ±2.5 pts | 2.0% |
| Drove alone to work | 72.6% ±6.6 pts | 65.3% |
| Carpooled | 5.5% ±4.4 pts | 4.6% |
| Public transportation | 0.6% ±0.7 pts | 1.1% |
| Walked | 0.0% ±1.2 pts | 0.0% |
| Worked from home | 21.3% ±5.6 pts | 29.0% |
| Mean travel time to work | 27.4 min ±3.5 | 27.2 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 171.02 compare with the other tracts in Hillsborough County?
Among Hillsborough County's tracts with a reliable estimate, Census Tract 171.02 ranks as shown below (1 = highest).
| Measure | In Hillsborough County |
|---|---|
| Population | 37th of 102 |
| Residents per square mile | 85th of 103 |
| Median household income | 4th of 102 |
| Per capita income | 5th of 102 |
| Median home value | 1st of 100 |
| Median gross rent | 19th of 95 |
| Bachelor's degree or higher | 16th of 102 |
| Median age | 20th of 102 |
| Owner-occupied share | 18th of 100 |
The tracts next to it on Hillsborough County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 29.03 | 1st | $207,183±$45,368 · within the margin of this tract |
| Tract 180.01 | 2nd | $175,758±$6,077 · within the margin of this tract |
| Tract 143.02 | 3rd | $173,382±$43,717 · within the margin of this tract |
| Tract 171.02 | 4th | $173,333±$40,288 |
| Tract 180.02 | 5th | $170,471±$10,237 · within the margin of this tract |
| Tract 151 | 6th | $170,424±$16,491 · within the margin of this tract |
| Tract 131.02 | 7th | $163,125±$10,805 · within the margin of this tract |
"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 171.02?
4 of the 18 figures for Census Tract 171.02 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