Census tract · Marin County
Census Tract 1170, Marin County, California
Census Tract 1170, GEOID 06041117000, in Marin County, California, entirely within San Anselmo. 4,903 residents in the ACS 2020-2024 5-year estimates (±594); the 2020 Census counted 4,713.
Residents, 2020-2024
4,903
±594 (90% margin)
2020 Census count: 4,713
Median household income
$154,458
±$35,628 (90% margin)
Marin County: $149,091
Median home value
$1,591,000
±$190,704 (90% margin)
Marin County: $1,507,300
Median gross rent
$2,727
±$360 (90% margin)
Marin County: $2,668
Where is Census Tract 1170?
Census Tract 1170 is one of 63 census tracts in Marin County, California. It covers 1.05 square miles of land, 4,497 residents per square mile in 2020. Its GEOID, 06041117000, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| San Anselmo | 100% |
6 census tracts border Census Tract 1170: Tract 1090.02 ($155,718), Tract 1110.02 ($93,756), Tract 1141 ($164,706), Tract 1150 ($198,036), Tract 1160 ($182,381) and Tract 1181 ($250,000 or more). 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 1170?
The 2020-2024 American Community Survey puts Census Tract 1170's population at 4,903 (±594) in 2,044 households; the 2020 Census counted 4,713 residents and 2,188 housing units.
| Measure | Tract 1170 | San Anselmo |
|---|---|---|
| Total population | 4,903 ±594 | 12,679 |
| Households | 2,044 ±172 | 5,224 |
| Average household size | 2.38 ±0.26 | 2.41 |
| Housing units | 2,244 ±166 | 5,498 |
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 1170?
The median resident of Census Tract 1170 is 42.7 years old; 24.8% are under 18 and 20.8% are 65 or older. The largest group is non-Hispanic white residents at 72.1%, then Hispanic or Latino residents (of any race) at 14.4%. 8.5% of residents were born outside the United States.
| Measure | Tract 1170 | San Anselmo |
|---|---|---|
| Median age | 42.7 ±6.9 | 45.6 |
| Under 18 years | 24.8% ±6.8 pts | 23.7% |
| 65 years and over | 20.8% ±6.0 pts | 21.6% |
| Hispanic or Latino (any race) | 14.4% ±7.7 pts | 10.5% |
| White alone, not Hispanic | 72.1% ±9.2 pts | 74.2% |
| Black or African American alone, not Hispanic | 0.2% ±0.4 pts | 1.4% |
| Asian alone, not Hispanic | 5.1% ±2.8 pts | 6.1% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.9 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.9 pts | 0.1% |
| Two or more races, not Hispanic | 7.0% ±4.2 pts | 7.3% |
| Some other race alone, not Hispanic | 1.3% ±2.0 pts | 0.5% |
| Born outside the United States | 8.5% ±4.0 pts | 9.6% |
| Speak a language other than English at home (age 5+) | 9.5% ±6.2 pts | 10.4% |
| Civilian veterans (age 18+) | 3.0% ±2.2 pts | 2.5% |
| With a disability | 9.0% ±3.8 pts | 7.8% |
| No health insurance coverage | 2.4% ±1.9 pts | 1.1% |
| High school graduate or higher (age 25+) | 98.6% ±1.5 pts | 98.0% |
| Bachelor's degree or higher (age 25+) | 65.5% ±7.0 pts | 70.6% |
| Graduate or professional degree (age 25+) | 25.4% ±6.9 pts | 30.3% |
| Lived in the same house a year earlier | 93.7% ±4.1 pts | 92.4% |
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 1170 earn?
Half of the 2,044 households in Census Tract 1170 earn less than $154,458 a year (±$35,628), against $149,091 across Marin County: 30th highest of the county's 61 tracts with a reliable estimate. 10.4% of residents live below the poverty line.
| Measure | Tract 1170 | San Anselmo |
|---|---|---|
| Median household income | $154,458 ±$35,628 | $173,641 |
| Mean household income | $238,679 ±$65,089 | $247,884 |
| Per capita income | $98,817 ±$20,943 | $104,254 |
| People below the poverty line | 10.4% ±6.1 pts | 7.4% |
| Children under 18 below the poverty line | 13.7% ±16.2 pts | 7.0% |
| Households receiving SNAP | 6.4% ±4.5 pts | 4.5% |
| Households with a computer | 100.0% ±2.1 pts | 98.3% |
| Households with a broadband subscription | 100.0% ±2.1 pts | 97.3% |
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 1170?
Owners occupy 55.5% of Census Tract 1170's occupied homes and renters 44.5%. The median owner-occupied home is valued at $1,591,000 by its owner (±$190,704). The median renter pays $2,727 a month including utilities, and 65.6% of renters pay 35% or more of their income on rent.
| Measure | Tract 1170 | San Anselmo |
|---|---|---|
| Median home value (owner-occupied) | $1,591,000 ±$190,704 | $1,576,700 |
| Median gross rent | $2,727 ±$360 | $2,797 |
| Renters paying 35% or more of income on rent | 65.6% ±13.7 pts | 53.8% |
| Median monthly owner costs, with a mortgage | $4,000 or more | $4,000 or more |
| Owner-occupied homes | 55.5% ±9.3 pts | 68.4% |
| Renter-occupied homes | 44.5% ±9.3 pts | 31.6% |
| Housing units | 2,244 ±166 | 5,498 |
| Single-family detached homes | 67.5% ±7.5 pts | 76.9% |
| Mobile homes | 0.0% ±1.9 pts | 0.0% |
| Built 2020 or later | 0.8% ±1.3 pts | 0.3% |
| Built 2010 to 2019 | 5.5% ±6.2 pts | 2.5% |
| Built 1939 or earlier | 30.7% ±9.5 pts | 28.8% |
| Households with no vehicle | 6.3% ±4.3 pts | 4.7% |
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 1170 get to work?
46.8% of Census Tract 1170's workers drive alone and 35.3% work from home. The average trip to work takes 33.7 minutes.
| Measure | Tract 1170 | San Anselmo |
|---|---|---|
| In the labor force (age 16+) | 66.4% ±7.6 pts | 69.6% |
| Unemployment rate | 6.2% ±4.6 pts | 7.0% |
| Drove alone to work | 46.8% ±9.8 pts | 50.7% |
| Carpooled | 3.1% ±3.1 pts | 2.3% |
| Public transportation | 2.1% ±2.0 pts | 3.0% |
| Walked | 6.6% ±5.5 pts | 3.7% |
| Worked from home | 35.3% ±9.5 pts | 35.1% |
| Mean travel time to work | 33.7 min ±14.7 | 30.2 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 1170 compare with the other tracts in Marin County?
Among Marin County's tracts with a reliable estimate, Census Tract 1170 ranks as shown below (1 = highest).
| Measure | In Marin County | In San Anselmo |
|---|---|---|
| Population | 23rd of 62 | 2nd of 3 |
| Residents per square mile | 19th of 62 | 2nd of 3 |
| Median household income | 30th of 61 | 3rd of 3 |
| Per capita income | 25th of 62 | 3rd of 3 |
| Median home value | 25th of 61 | 3rd of 3 |
| Median gross rent | 30th of 58 | 2nd of 3 |
| Poverty rate | 14th of 37 | 1st of 3 |
| Bachelor's degree or higher | 26th of 60 | 3rd of 3 |
| Median age | 52nd of 62 | 3rd of 3 |
| Owner-occupied share | 43rd of 58 | 3rd of 3 |
The tracts next to it on Marin County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 1141 | 27th | $164,706±$42,409 · within the margin of this tract |
| Tract 1041.04 | 28th | $156,681±$22,798 · within the margin of this tract |
| Tract 1090.02 | 29th | $155,718±$22,210 · within the margin of this tract |
| Tract 1170 | 30th | $154,458±$35,628 |
| Tract 1200.01 | 31st | $152,167±$67,085 · within the margin of this tract |
| Tract 1090.01 | 32nd | $151,023±$37,438 · within the margin of this tract |
| Tract 1250 | 33rd | $148,646±$38,809 · 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 1170?
1 of the 18 figures for Census Tract 1170 on this page carries a coefficient of variation over 40% and is 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