Census tract · San Francisco County
Census Tract 309, San Francisco County, California
Census Tract 309, GEOID 06075030900, in San Francisco County, California, entirely within San Francisco. 6,548 residents in the ACS 2020-2024 5-year estimates (±904); the 2020 Census counted 6,707.
Residents, 2020-2024
6,548
±904 (90% margin)
2020 Census count: 6,707
Median household income
$235,109
±$52,661 (90% margin)
San Francisco County: $140,970
Median home value
$2,000,000 or more
The survey's top or bottom value; no margin is published
San Francisco County: $1,394,500
Median gross rent
$3,500 or more
The survey's top or bottom value; no margin is published
San Francisco County: $2,476
Where is Census Tract 309?
Census Tract 309 is one of 244 census tracts in San Francisco County, California. It covers 0.73 square miles of land, 9,238 residents per square mile in 2020. Its GEOID, 06075030900, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| San Francisco | 100% |
8 census tracts border Census Tract 309: Tract 308 ($186,667), Tract 310 ($206,130), Tract 312.01 ($120,962), Tract 313.01 ($147,938), Tract 331 ($176,806), Tract 332.01, Tract 332.03 ($76,923) and Tract 332.04 ($58,114). 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 309?
The 2020-2024 American Community Survey puts Census Tract 309's population at 6,548 (±904) in 2,274 households; the 2020 Census counted 6,707 residents and 2,429 housing units.
| Measure | Tract 309 | San Francisco |
|---|---|---|
| Total population | 6,548 ±904 | 830,235 |
| Households | 2,274 ±373 | 363,970 |
| Average household size | 2.87 ±0.24 | 2.21 |
| Housing units | 2,522 ±359 | 414,602 |
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 309?
The median resident of Census Tract 309 is 47.2 years old; 22.6% are under 18 and 20.9% are 65 or older. The largest group is non-Hispanic white residents at 36.9%, then non-Hispanic Asian residents at 35.6%. 30.7% of residents were born outside the United States.
| Measure | Tract 309 | San Francisco |
|---|---|---|
| Median age | 47.2 ±3.4 | 40.0 |
| Under 18 years | 22.6% ±3.4 pts | 13.7% |
| 65 years and over | 20.9% ±5.1 pts | 17.6% |
| Hispanic or Latino (any race) | 10.6% ±4.5 pts | 16.2% |
| White alone, not Hispanic | 36.9% ±6.6 pts | 36.8% |
| Black or African American alone, not Hispanic | 0.5% ±0.5 pts | 4.7% |
| Asian alone, not Hispanic | 35.6% ±7.6 pts | 34.9% |
| American Indian and Alaska Native alone, not Hispanic | 0.8% ±0.9 pts | 0.2% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.6 pts | 0.3% |
| Two or more races, not Hispanic | 14.9% ±5.7 pts | 6.1% |
| Some other race alone, not Hispanic | 0.7% ±1.1 pts | 0.8% |
| Born outside the United States | 30.7% ±6.5 pts | 34.0% |
| Speak a language other than English at home (age 5+) | 38.5% ±6.9 pts | 43.6% |
| Civilian veterans (age 18+) | 1.5% ±1.4 pts | 2.5% |
| With a disability | 10.1% ±3.7 pts | 11.9% |
| No health insurance coverage | 1.1% ±1.2 pts | 3.3% |
| High school graduate or higher (age 25+) | 92.5% ±4.1 pts | 89.0% |
| Bachelor's degree or higher (age 25+) | 64.4% ±7.1 pts | 60.3% |
| Graduate or professional degree (age 25+) | 31.0% ±7.0 pts | 25.4% |
| Lived in the same house a year earlier | 93.7% ±4.8 pts | 84.3% |
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 309 earn?
Half of the 2,274 households in Census Tract 309 earn less than $235,109 a year (±$52,661), against $140,970 across San Francisco County: 17th highest of the county's 227 tracts with a reliable estimate. 3.8% of residents live below the poverty line.
| Measure | Tract 309 | San Francisco |
|---|---|---|
| Median household income | $235,109 ±$52,661 | $140,970 |
| Mean household income | $303,802 ±$56,224 | $206,854 |
| Per capita income | $101,826 ±$17,487 | $92,289 |
| People below the poverty line | 3.8% ±2.2 pts | 11.2% |
| Children under 18 below the poverty line | 0.9% ±1.5 pts | 9.0% |
| Households receiving SNAP | 6.9% ±4.2 pts | 11.4% |
| Households with a computer | 93.6% ±6.1 pts | 96.6% |
| Households with a broadband subscription | 93.2% ±6.1 pts | 93.0% |
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 309?
Owners occupy 93.1% of Census Tract 309's occupied homes and renters 6.9%. The median owner-occupied home is valued at $2,000,000 or more by its owner (). The median renter pays $3,500 or more a month including utilities.
| Measure | Tract 309 | San Francisco |
|---|---|---|
| Median home value (owner-occupied) | $2,000,000 or more | $1,394,500 |
| Median gross rent | $3,500 or more | $2,476 |
| Renters paying 35% or more of income on rent | 59.2% ±41.7 pts | 31.7% |
| Median monthly owner costs, with a mortgage | $4,000 or more | $4,000 or more |
| Owner-occupied homes | 93.1% ±3.9 pts | 38.2% |
| Renter-occupied homes | 6.9% ±3.9 pts | 61.8% |
| Housing units | 2,522 ±359 | 414,602 |
| Single-family detached homes | 96.1% ±2.7 pts | 18.0% |
| Mobile homes | 0.0% ±1.7 pts | 0.1% |
| Built 2020 or later | 0.0% ±1.7 pts | 1.1% |
| Built 2010 to 2019 | 0.4% ±0.7 pts | 6.9% |
| Built 1939 or earlier | 68.9% ±8.0 pts | 45.2% |
| Households with no vehicle | 4.4% ±6.0 pts | 30.2% |
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 309 get to work?
34.9% of Census Tract 309's workers drive alone and 34.4% work from home. The average trip to work takes 27.4 minutes. The unemployment rate in 2020-2024 averaged 5.3%.
| Measure | Tract 309 | San Francisco |
|---|---|---|
| In the labor force (age 16+) | 66.6% ±5.2 pts | 69.6% |
| Unemployment rate | 5.3% ±2.8 pts | 6.1% |
| Drove alone to work | 34.9% ±7.4 pts | 28.6% |
| Carpooled | 13.5% ±7.2 pts | 5.9% |
| Public transportation | 10.7% ±4.9 pts | 18.7% |
| Walked | 4.6% ±2.3 pts | 9.4% |
| Worked from home | 34.4% ±6.7 pts | 31.0% |
| Mean travel time to work | 27.4 min ±2.8 | 30.4 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 309 compare with the other tracts in San Francisco County?
Among San Francisco County's tracts with a reliable estimate, Census Tract 309 ranks as shown below (1 = highest).
| Measure | In San Francisco County | In San Francisco |
|---|---|---|
| Population | 6th of 241 | 6th of 241 |
| Residents per square mile | 226th of 242 | 226th of 242 |
| Median household income | 17th of 227 | 17th of 227 |
| Per capita income | 93rd of 240 | 93rd of 240 |
| Median home value | 1st of 213 | 1st of 213 |
| Median gross rent | 1st of 230 | 1st of 230 |
| Poverty rate | 173rd of 180 | 173rd of 180 |
| Bachelor's degree or higher | 118th of 237 | 118th of 237 |
| Median age | 38th of 241 | 38th of 241 |
| Owner-occupied share | 1st of 215 | 1st of 215 |
The tracts next to it on San Francisco County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 167 | 14th | $239,839±$36,267 · within the margin of this tract |
| Tract 216 | 15th | $237,083±$35,980 · within the margin of this tract |
| Tract 206.01 | 16th | $235,568±$36,024 · within the margin of this tract |
| Tract 309 | 17th | $235,109±$52,661 |
| Tract 127 | 18th | $234,886±$58,903 · within the margin of this tract |
| Tract 226 | 19th | $232,036±$39,380 · within the margin of this tract |
| Tract 615.04 | 20th | $231,414±$68,901 · 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 309?
1 of the 18 figures for Census Tract 309 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