Census tract · Marin County
Census Tract 1150, Marin County, California
Census Tract 1150, GEOID 06041115000, in Marin County, California, mostly within San Anselmo (67% of its census blocks). 7,742 residents in the ACS 2020-2024 5-year estimates (±543); the 2020 Census counted 7,489.
Residents, 2020-2024
7,742
±543 (90% margin)
2020 Census count: 7,489
Median household income
$198,036
±$30,430 (90% margin)
Marin County: $149,091
Median home value
$1,716,200
±$94,790 (90% margin)
Marin County: $1,507,300
Median gross rent
$3,500 or more
The survey's top or bottom value; no margin is published
Marin County: $2,668
Where is Census Tract 1150?
Census Tract 1150 is one of 63 census tracts in Marin County, California. It covers 4.10 square miles of land, 1,827 residents per square mile in 2020. Its GEOID, 06041115000, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| San Anselmo | 67% |
| Sleepy Hollow | 28% |
| Fairfax, Marin County | 1% |
8 census tracts border Census Tract 1150: Tract 1070 ($200,761), Tract 1081 ($174,444), Tract 1082.02 ($108,056), Tract 1090.02 ($155,718), Tract 1141 ($164,706), Tract 1142 ($133,750), Tract 1160 ($182,381) and Tract 1170 ($154,458). 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 1150?
The 2020-2024 American Community Survey puts Census Tract 1150's population at 7,742 (±543) in 3,034 households; the 2020 Census counted 7,489 residents and 2,863 housing units.
| Measure | Tract 1150 | San Anselmo |
|---|---|---|
| Total population | 7,742 ±543 | 12,679 |
| Households | 3,034 ±268 | 5,224 |
| Average household size | 2.53 ±0.16 | 2.41 |
| Housing units | 3,115 ±275 | 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 1150?
The median resident of Census Tract 1150 is 49.6 years old; 22.3% are under 18 and 23.4% are 65 or older. The largest group is non-Hispanic white residents at 72.8%, then Hispanic or Latino residents (of any race) at 9.3%. 9.8% of residents were born outside the United States.
| Measure | Tract 1150 | San Anselmo |
|---|---|---|
| Median age | 49.6 ±3.7 | 45.6 |
| Under 18 years | 22.3% ±2.8 pts | 23.7% |
| 65 years and over | 23.4% ±2.7 pts | 21.6% |
| Hispanic or Latino (any race) | 9.3% ±2.8 pts | 10.5% |
| White alone, not Hispanic | 72.8% ±5.1 pts | 74.2% |
| Black or African American alone, not Hispanic | 2.3% ±2.5 pts | 1.4% |
| Asian alone, not Hispanic | 5.4% ±2.4 pts | 6.1% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.5 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.5 pts | 0.1% |
| Two or more races, not Hispanic | 8.6% ±3.5 pts | 7.3% |
| Some other race alone, not Hispanic | 1.5% ±2.4 pts | 0.5% |
| Born outside the United States | 9.8% ±2.8 pts | 9.6% |
| Speak a language other than English at home (age 5+) | 9.2% ±3.5 pts | 10.4% |
| Civilian veterans (age 18+) | 2.4% ±1.5 pts | 2.5% |
| With a disability | 8.2% ±2.6 pts | 7.8% |
| No health insurance coverage | 0.3% ±0.5 pts | 1.1% |
| High school graduate or higher (age 25+) | 98.4% ±1.3 pts | 98.0% |
| Bachelor's degree or higher (age 25+) | 75.3% ±5.4 pts | 70.6% |
| Graduate or professional degree (age 25+) | 31.0% ±5.8 pts | 30.3% |
| Lived in the same house a year earlier | 92.6% ±3.1 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 1150 earn?
Half of the 3,034 households in Census Tract 1150 earn less than $198,036 a year (±$30,430), against $149,091 across Marin County: 18th highest of the county's 61 tracts with a reliable estimate. 4.1% of residents live below the poverty line.
| Measure | Tract 1150 | San Anselmo |
|---|---|---|
| Median household income | $198,036 ±$30,430 | $173,641 |
| Mean household income | $312,464 ±$39,229 | $247,884 |
| Per capita income | $123,071 ±$14,875 | $104,254 |
| People below the poverty line | 4.1% ±2.5 pts | 7.4% |
| Children under 18 below the poverty line | 2.5% ±4.3 pts | 7.0% |
| Households receiving SNAP | 3.0% ±2.6 pts | 4.5% |
| Households with a computer | 97.8% ±2.0 pts | 98.3% |
| Households with a broadband subscription | 97.8% ±2.0 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 1150?
Owners occupy 83.6% of Census Tract 1150's occupied homes and renters 16.4%. The median owner-occupied home is valued at $1,716,200 by its owner (±$94,790). The median renter pays $3,500 or more a month including utilities.
| Measure | Tract 1150 | San Anselmo |
|---|---|---|
| Median home value (owner-occupied) | $1,716,200 ±$94,790 | $1,576,700 |
| Median gross rent | $3,500 or more | $2,797 |
| Renters paying 35% or more of income on rent | 35.5% ±30.3 pts | 53.8% |
| Median monthly owner costs, with a mortgage | $4,000 or more | $4,000 or more |
| Owner-occupied homes | 83.6% ±7.4 pts | 68.4% |
| Renter-occupied homes | 16.4% ±7.4 pts | 31.6% |
| Housing units | 3,115 ±275 | 5,498 |
| Single-family detached homes | 90.5% ±5.8 pts | 76.9% |
| Mobile homes | 0.0% ±1.4 pts | 0.0% |
| Built 2020 or later | 0.7% ±1.0 pts | 0.3% |
| Built 2010 to 2019 | 0.0% ±1.4 pts | 2.5% |
| Built 1939 or earlier | 11.1% ±4.0 pts | 28.8% |
| Households with no vehicle | 2.9% ±2.7 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 1150 get to work?
50.1% of Census Tract 1150's workers drive alone and 38.6% work from home. The average trip to work takes 35.0 minutes. The unemployment rate in 2020-2024 averaged 11.0%.
| Measure | Tract 1150 | San Anselmo |
|---|---|---|
| In the labor force (age 16+) | 67.0% ±5.1 pts | 69.6% |
| Unemployment rate | 11.0% ±4.6 pts | 7.0% |
| Drove alone to work | 50.1% ±8.7 pts | 50.7% |
| Carpooled | 2.9% ±3.0 pts | 2.3% |
| Public transportation | 2.0% ±1.7 pts | 3.0% |
| Walked | 1.2% ±1.4 pts | 3.7% |
| Worked from home | 38.6% ±7.6 pts | 35.1% |
| Mean travel time to work | 35.0 min ±6.8 | 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 1150 compare with the other tracts in Marin County?
Among Marin County's tracts with a reliable estimate, Census Tract 1150 ranks as shown below (1 = highest).
| Measure | In Marin County | In San Anselmo |
|---|---|---|
| Population | 1st of 62 | 1st of 3 |
| Residents per square mile | 43rd of 62 | 3rd of 3 |
| Median household income | 18th of 61 | 1st of 3 |
| Per capita income | 13th of 62 | 1st of 3 |
| Median home value | 21st of 61 | 1st of 3 |
| Median gross rent | 1st of 58 | 1st of 3 |
| Poverty rate | 32nd of 37 | 3rd of 3 |
| Bachelor's degree or higher | 14th of 60 | 1st of 3 |
| Median age | 24th of 62 | 1st of 3 |
| Owner-occupied share | 10th of 58 | 1st of 3 |
The tracts next to it on Marin County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 1102 | 15th | $204,931±$59,266 · within the margin of this tract |
| Tract 1270 | 16th | $200,978±$54,200 · within the margin of this tract |
| Tract 1070 | 17th | $200,761±$42,266 · within the margin of this tract |
| Tract 1150 | 18th | $198,036±$30,430 |
| Tract 1311 | 19th | $185,104±$43,863 · within the margin of this tract |
| Tract 1302.03 | 20th | $182,658±$60,271 · within the margin of this tract |
| Tract 1160 | 21st | $182,381±$28,754 · 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 1150?
1 of the 18 figures for Census Tract 1150 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