City · California
San Ramon, California
San Ramon, city, in Contra Costa County, California. San Ramon had 86,209 residents on July 1, 2025 by the Census Bureau's estimate, down 0.3% since 2020; the 2020 Census counted 84,605 and the ACS 2020-2024 5-year estimates put it at 85,993 (±114). GEOID 0668378.
Residents, July 2025 estimate
86,209
Census Bureau estimate (no margin published)
2020 Census count: 84,605 · ACS 2020-2024: 85,993 ±114
Median household income
$196,161
±$11,535 (90% margin)
California: $99,122
Median home value
$1,509,500
±$32,681 (90% margin)
California: $734,700
Median gross rent
$2,968
±$96 (90% margin)
California: $2,036
Where is San Ramon and what county is it in?
San Ramon is a city in Contra Costa County, California. It covers 20.1 square miles of land, 4,218 residents per square mile in 2020.
San Ramon is in the San Francisco-Oakland-Fremont, CA metropolitan statistical area, which takes in 5 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in San Ramon, and is it growing?
The Census Bureau estimates that 86,209 people lived in San Ramon on July 1, 2025, down 0.3% since 2020, in line with California (−0.5%). The 2020 Census counted 84,605 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 85,993 (±114).
| Measure | San Ramon | Contra Costa County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 85,993 ±114 | 1,165,012 | +10,345 |
| Households | 30,103 ±590 | 414,417 | +4,568 |
| Average household size | 2.85 ±0.06 | 2.78 | −0.11 |
| Housing units | 30,744 ±589 | 429,260 | +4,219 |
San Ramon's population since 2000
From 44,722 in 2000 to 86,209 in 2025: up 92.8%. The 2000, 2010 and 2020 figures are census counts, each for San Ramon as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in San Ramon?
The median resident of San Ramon is 41.6 years old; 25.8% are under 18 and 12.2% are 65 or older. The largest group is non-Hispanic Asian residents at 49.5%, then non-Hispanic white residents at 32.9%. 38.6% of residents were born outside the United States.
| Measure | San Ramon | Contra Costa County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 41.6 ±0.9 | 40.5 | +1.4 |
| Under 18 years | 25.8% ±1.1 pts | 22.0% | – |
| 65 years and over | 12.2% ±0.8 pts | 17.1% | – |
| Male | 48.9% ±1.0 pts | 49.2% | – |
| Hispanic or Latino (any race) | 7.5% ±1.3 pts | 27.6% | no clear change |
| White alone, not Hispanic | 32.9% ±2.1 pts | 38.1% | −5.7 pts |
| Black or African American alone, not Hispanic | 3.3% ±0.8 pts | 7.9% | no clear change |
| Asian alone, not Hispanic | 49.5% ±2.3 pts | 18.6% | +3.0 pts |
| American Indian and Alaska Native alone, not Hispanic | 0.2% ±0.1 pts | 0.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.2% ±0.2 pts | 0.5% | – |
| Two or more races, not Hispanic | 5.8% ±1.0 pts | 6.3% | – |
| Some other race alone, not Hispanic | 0.6% ±0.4 pts | 0.8% | – |
| Born outside the United States | 38.6% ±1.8 pts | 26.6% | no clear change |
| Speak a language other than English at home (age 5+) | 46.8% ±2.3 pts | 37.5% | – |
| Civilian veterans (age 18+) | 3.3% ±0.6 pts | 4.2% | – |
| With a disability | 6.3% ±0.7 pts | 11.1% | – |
| No health insurance coverage | 1.9% ±0.6 pts | 4.6% | no clear change |
| High school graduate or higher (age 25+) | 97.0% ±0.7 pts | 89.6% | – |
| Bachelor's degree or higher (age 25+) | 71.6% ±2.0 pts | 45.2% | no clear change |
| Graduate or professional degree (age 25+) | 33.4% ±2.0 pts | 17.7% | – |
| Lived in the same house a year earlier | 89.0% ±1.4 pts | 90.0% | – |
| Moved from another state in the past year | 1.4% ±0.5 pts | 0.9% | – |
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 San Ramon earn?
Half of San Ramon's 30,103 households earn less than $196,161 a year (±$11,535), against $127,229 in Contra Costa County and $99,122 in California. In 2015-2019 it was $197,875 in 2024 dollars; the margins of error cannot tell the two periods apart. 4.4% of residents live below the poverty line.
| Measure | San Ramon | Contra Costa County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $196,161 ±$11,535 | $127,229 | no clear change |
| Mean household income | $239,072 ±$8,704 | $174,872 | – |
| Per capita income | $84,288 ±$2,951 | $62,927 | +$5,792 |
| People below the poverty line | 4.4% ±1.0 pts | 8.4% | no clear change |
| Children under 18 below the poverty line | 3.6% ±1.4 pts | 10.0% | no clear change |
| Households receiving SNAP | 2.9% ±0.8 pts | 8.5% | – |
| Households with a computer | 98.8% ±0.6 pts | 97.7% | – |
| Households with a broadband subscription | 97.1% ±0.9 pts | 95.6% | – |
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 San Ramon?
Owners occupy 70.9% of San Ramon's occupied homes and renters 29.1%. The median owner-occupied home is valued at $1,509,500 by its owner (±$32,681). The median renter pays $2,968 a month including utilities, and 39.3% of renters pay 35% or more of their income on rent.
| Measure | San Ramon | Contra Costa County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $1,509,500 ±$32,681 | $866,800 | +$329,511 |
| Median gross rent | $2,968 ±$96 | $2,375 | no clear change |
| Renters paying 35% or more of income on rent | 39.3% ±5.6 pts | 47.4% | no clear change |
| Median monthly owner costs, with a mortgage | $4,000 or more | $3,435 | – |
| Owner-occupied homes | 70.9% ±2.2 pts | 68.0% | no clear change |
| Renter-occupied homes | 29.1% ±2.2 pts | 32.0% | – |
| Housing units | 30,744 ±589 | 429,260 | +4,219 |
| Homeowner vacancy rate | 0.1% ±0.1 pts | 0.7% | – |
| Rental vacancy rate | 2.4% ±1.6 pts | 2.8% | – |
| Single-family detached homes | 63.5% ±1.9 pts | 67.5% | – |
| Mobile homes | 0.0% ±0.1 pts | 1.4% | – |
| Built 2020 or later | 0.8% ±0.3 pts | 1.1% | – |
| Built 2010 to 2019 | 11.9% ±1.5 pts | 5.8% | – |
| Built 1939 or earlier | 0.3% ±0.2 pts | 4.2% | – |
| Households with no vehicle | 3.7% ±1.0 pts | 5.2% | – |
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 many new homes is San Ramon building?
Builders took permits for 101 new housing units in San Ramon in 2025 (85 in single-family houses), 1.2 per 1,000 residents against 2.6 across California.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in San Ramon work and get to work?
54.7% of San Ramon's workers drive alone and 33.9% work from home. The average trip to work takes 34.7 minutes. The unemployment rate in 2020-2024 averaged 5.2%.
| Measure | San Ramon | Contra Costa County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 69.3% ±1.5 pts | 64.7% | – |
| Unemployment rate | 5.2% ±0.9 pts | 6.5% | +2.0 pts |
| Drove alone to work | 54.7% ±2.2 pts | 59.7% | – |
| Carpooled | 4.7% ±0.7 pts | 10.0% | – |
| Public transportation | 3.4% ±0.8 pts | 5.4% | – |
| Walked | 1.4% ±0.6 pts | 1.8% | – |
| Worked from home | 33.9% ±2.0 pts | 21.3% | +25.0 pts |
| Mean travel time to work | 34.7 min ±1.1 | 35.3 min | −4.1 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
What census tracts are in San Ramon?
17 census tracts lie mostly in San Ramon, and 4 more reach into it (2020 census blocks). Their median household incomes run from $145,446 (Tract 3451.11) to $250,000 or more (Tract 3551.26).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 3551.15Contra Costa County | 10,460 | $150,781 |
| Tract 3451.01Contra Costa County | 6,648 | $182,332 |
| Tract 3451.12Contra Costa County | 8,221 | $216,774 |
| Tract 3451.11Contra Costa County | 5,861 | $145,446 |
| Tract 3451.03Contra Costa County | 5,335 | $211,518 |
| Tract 3451.15Contra Costa County | 6,220 | $226,595 |
| Tract 3451.17Contra Costa County | 4,752 | $209,013 |
| Tract 3551.21Contra Costa County | 6,121 | $250,000 or more |
| Tract 3551.24Contra Costa County | 4,480 | $250,000 or more |
| Tract 3451.02Contra Costa County | 4,114 | $189,375 |
| Tract 3551.25Contra Costa County | 3,980 | $250,000 or more |
| Tract 3452.05Contra Costa County | 5,741 | $176,727 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in San Ramon) · Census block assignment files
How does San Ramon compare with other places in California?
By the Census Bureau's July 2025 estimates, San Ramon is the 425th-most populous of the 19,476 U.S. incorporated places that have one and the 97th-most populous of 483 in California.
San Ramon ranks 75th of 1,037 places in California with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 97th | 483 |
| Growth 2020-2025 (PEP) | 180th | 469 |
| Residents per square mile | 302nd | 1,077 |
| Median household income | 75th | 1,037 |
| Per capita income | 128th | 1,073 |
| Median home value | 106th | 1,054 |
| Median gross rent | 100th | 987 |
| Poverty rate | 792nd | 836 |
| Bachelor's degree or higher | 77th | 988 |
| Median age | 445th | 1,075 |
| Owner-occupied share | 423rd | 1,064 |
| Work from home | 77th | 822 |
| Travel time to work | 176th | 1,069 |
San Ramon's figures with every place in California (CSV)
Every place in California, sortable · Compare San Ramon with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for San Ramon?
6 of the 57 figures for San Ramon 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.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. 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 · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for San Ramon are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in San Ramon.