Census tract · Marin County
Census Tract 1200.01, Marin County, California
Census Tract 1200.01, GEOID 06041120001, in Marin County, California, entirely within Larkspur. 1,592 residents in the ACS 2020-2024 5-year estimates (±336); the 2020 Census counted 1,374.
Residents, 2020-2024
1,592
±336 (90% margin)
2020 Census count: 1,374
Median household income
$152,167
±$67,085 (90% margin)
Marin County: $149,091
Median home value
$2,000,000 or more
The survey's top or bottom value; no margin is published
Marin County: $1,507,300
Median gross rent
$3,091
±$232 (90% margin)
Marin County: $2,668
Where is Census Tract 1200.01?
Census Tract 1200.01 is one of 63 census tracts in Marin County, California. It covers 0.23 square miles of land, 6,026 residents per square mile in 2020. Its GEOID, 06041120001, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Larkspur | 100% |
2 census tracts border Census Tract 1200.01: Tract 1191 ($244,702) and Tract 1200.02 ($235,313). 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 1200.01?
The 2020-2024 American Community Survey puts Census Tract 1200.01's population at 1,592 (±336) in 708 households; the 2020 Census counted 1,374 residents and 682 housing units.
| Measure | Tract 1200.01 | Larkspur |
|---|---|---|
| Total population | 1,592 ±336 | 12,854 |
| Households | 708 ±126 | 6,018 |
| Average household size | 2.25 ±0.24 | 2.11 |
| Housing units | 730 ±125 | 6,431 |
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 1200.01?
The median resident of Census Tract 1200.01 is 45.0 years old; 22.7% are under 18 and 16.5% are 65 or older. The largest group is non-Hispanic white residents at 75.6%, then Hispanic or Latino residents (of any race) at 11.3%. 22.1% of residents were born outside the United States.
| Measure | Tract 1200.01 | Larkspur |
|---|---|---|
| Median age | 45.0 ±4.8 | 51.2 |
| Under 18 years | 22.7% ±7.0 pts | 16.6% |
| 65 years and over | 16.5% ±4.5 pts | 25.4% |
| Hispanic or Latino (any race) | 11.3% ±8.0 pts | 8.8% |
| White alone, not Hispanic | 75.6% ±10.8 pts | 73.2% |
| Black or African American alone, not Hispanic | 0.0% ±2.6 pts | 0.1% |
| Asian alone, not Hispanic | 6.3% ±6.6 pts | 6.7% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±2.6 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±2.6 pts | 0.0% |
| Two or more races, not Hispanic | 3.0% ±3.4 pts | 9.6% |
| Some other race alone, not Hispanic | 3.8% ±5.4 pts | 1.6% |
| Born outside the United States | 22.1% ±10.1 pts | 15.8% |
| Speak a language other than English at home (age 5+) | 14.8% ±7.3 pts | 18.4% |
| Civilian veterans (age 18+) | 2.9% ±2.0 pts | 4.1% |
| With a disability | 6.6% ±3.9 pts | 10.3% |
| No health insurance coverage | 4.8% ±5.5 pts | 3.5% |
| High school graduate or higher (age 25+) | 93.7% ±5.3 pts | 97.2% |
| Bachelor's degree or higher (age 25+) | 66.6% ±10.1 pts | 67.9% |
| Graduate or professional degree (age 25+) | 41.0% ±10.2 pts | 33.9% |
| Lived in the same house a year earlier | 86.6% ±6.6 pts | 90.0% |
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 1200.01 earn?
Half of the 708 households in Census Tract 1200.01 earn less than $152,167 a year (±$67,085), against $149,091 across Marin County: 31st highest of the county's 61 tracts with a reliable estimate.
| Measure | Tract 1200.01 | Larkspur |
|---|---|---|
| Median household income | $152,167 ±$67,085 | $140,417 |
| Mean household income | $204,553 ±$55,267 | $227,218 |
| Per capita income | $90,149 ±$23,977 | $107,185 |
| People below the poverty line | 4.1% ±4.1 pts | 7.0% |
| Children under 18 below the poverty line | 6.6% ±8.5 pts | 3.8% |
| Households receiving SNAP | 1.7% ±2.4 pts | 4.5% |
| Households with a computer | 98.3% ±2.0 pts | 97.3% |
| Households with a broadband subscription | 98.3% ±2.0 pts | 96.6% |
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 1200.01?
Owners occupy 35.3% of Census Tract 1200.01's occupied homes and renters 64.7%. The median owner-occupied home is valued at $2,000,000 or more by its owner (). The median renter pays $3,091 a month including utilities, and 51.1% of renters pay 35% or more of their income on rent.
| Measure | Tract 1200.01 | Larkspur |
|---|---|---|
| Median home value (owner-occupied) | $2,000,000 or more | $1,996,600 |
| Median gross rent | $3,091 ±$232 | $3,001 |
| Renters paying 35% or more of income on rent | 51.1% ±18.9 pts | 49.9% |
| Median monthly owner costs, with a mortgage | $4,000 or more | $4,000 or more |
| Owner-occupied homes | 35.3% ±9.9 pts | 46.5% |
| Renter-occupied homes | 64.7% ±9.9 pts | 53.5% |
| Housing units | 730 ±125 | 6,431 |
| Single-family detached homes | 36.4% ±10.6 pts | 39.2% |
| Mobile homes | 0.0% ±5.7 pts | 0.7% |
| Built 2020 or later | 0.0% ±5.7 pts | 0.2% |
| Built 2010 to 2019 | 0.0% ±5.7 pts | 3.5% |
| Built 1939 or earlier | 3.7% ±3.9 pts | 9.6% |
| Households with no vehicle | 0.0% ±5.8 pts | 6.4% |
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 1200.01 get to work?
68.0% of Census Tract 1200.01's workers drive alone and 17.5% work from home. The average trip to work takes 29.0 minutes.
| Measure | Tract 1200.01 | Larkspur |
|---|---|---|
| In the labor force (age 16+) | 75.2% ±7.7 pts | 63.6% |
| Unemployment rate | 3.4% ±3.5 pts | 4.4% |
| Drove alone to work | 68.0% ±11.0 pts | 52.8% |
| Carpooled | 7.0% ±5.9 pts | 4.1% |
| Public transportation | 0.9% ±1.3 pts | 4.0% |
| Walked | 6.1% ±4.3 pts | 3.5% |
| Worked from home | 17.5% ±7.9 pts | 32.9% |
| Mean travel time to work | 29.0 min ±5.8 | 27.5 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 1200.01 compare with the other tracts in Marin County?
Among Marin County's tracts with a reliable estimate, Census Tract 1200.01 ranks as shown below (1 = highest).
| Measure | In Marin County | In Larkspur |
|---|---|---|
| Population | 60th of 62 | 4th of 4 |
| Residents per square mile | 10th of 62 | 2nd of 4 |
| Median household income | 31st of 61 | 3rd of 4 |
| Per capita income | 31st of 62 | 3rd of 4 |
| Median home value | 1st of 61 | 1st of 4 |
| Median gross rent | 23rd of 58 | 2nd of 4 |
| Bachelor's degree or higher | 24th of 60 | 3rd of 4 |
| Median age | 47th of 62 | 4th of 4 |
| Owner-occupied share | 54th of 58 | 3rd of 4 |
The tracts next to it on Marin County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| 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 · within the margin of this tract |
| Tract 1200.01 | 31st | $152,167±$67,085 |
| 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 |
| Tract 1262 | 34th | $147,089±$21,581 · 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 1200.01?
4 of the 18 figures for Census Tract 1200.01 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