Census tract · San Mateo County
Census Tract 6101, San Mateo County, California
Census Tract 6101, GEOID 06081610100, in San Mateo County, California, entirely within Redwood City. 2,524 residents in the ACS 2020-2024 5-year estimates (±316); the 2020 Census counted 2,489.
Residents, 2020-2024
2,524
±316 (90% margin)
2020 Census count: 2,489
Median household income
$128,472
±$15,572 (90% margin)
San Mateo County: $158,855
Median home value
$1,516,600
±$128,817 (90% margin)
San Mateo County: $1,559,600
Median gross rent
$2,339
±$127 (90% margin)
San Mateo County: $2,922
Where is Census Tract 6101?
Census Tract 6101 is one of 174 census tracts in San Mateo County, California. It covers 0.20 square miles of land, 12,764 residents per square mile in 2020. Its GEOID, 06081610100, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Redwood City | 100% |
3 census tracts border Census Tract 6101: Tract 6091 ($242,750), Tract 6100 ($164,852) and Tract 6102.02 ($185,920). 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 6101?
The 2020-2024 American Community Survey puts Census Tract 6101's population at 2,524 (±316) in 899 households; the 2020 Census counted 2,489 residents and 934 housing units.
| Measure | Tract 6101 | Redwood City |
|---|---|---|
| Total population | 2,524±316 | 82,447 |
| Households | 899±70 | 29,951 |
| Average household size | 2.81±0.23 | 2.69 |
| Housing units | 918±71 | 32,135 |
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 6101?
The median resident of Census Tract 6101 is 40.8 years old; 18.3% are under 18 and 9.0% are 65 or older. The largest group is Hispanic or Latino residents (of any race) at 46.9%, then non-Hispanic white residents at 37.9%. 29.0% of residents were born outside the United States.
| Measure | Tract 6101 | Redwood City |
|---|---|---|
| Median age | 40.8±2.8 | 37.5 |
| Under 18 years | 18.3%±4.0 pts | 21.3% |
| 65 years and over | 9.0%±2.3 pts | 13.8% |
| Hispanic or Latino (any race) | 46.9%±7.1 pts | 35.6% |
| White alone, not Hispanic | 37.9%±6.3 pts | 36.7% |
| Black or African American alone, not Hispanic | 0.4%±0.5 pts | 2.9% |
| Asian alone, not Hispanic | 5.3%±3.2 pts | 18.0% |
| American Indian and Alaska Native alone, not Hispanic | 0.2%±0.3 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 2.3%±2.7 pts | 0.5% |
| Two or more races, not Hispanic | 6.6%±3.2 pts | 5.3% |
| Some other race alone, not Hispanic | 0.4%±0.5 pts | 0.9% |
| Born outside the United States | 29.0%±7.3 pts | 32.9% |
| Speak a language other than English at home (age 5+) | 40.2%±7.4 pts | 46.5% |
| Civilian veterans (age 18+) | 1.0%±0.8 pts | 2.1% |
| With a disability | 6.5%±2.8 pts | 8.7% |
| No health insurance coverage | 5.0%±3.4 pts | 4.6% |
| High school graduate or higher (age 25+) | 80.5%±7.0 pts | 87.1% |
| Bachelor's degree or higher (age 25+) | 40.0%±5.9 pts | 54.4% |
| Graduate or professional degree (age 25+) | 11.5%±3.6 pts | 26.9% |
| Lived in the same house a year earlier | 90.1%±4.5 pts | 86.1% |
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 6101 earn?
Half of the 899 households in Census Tract 6101 earn less than $128,472 a year (±$15,572), against $158,855 across San Mateo County: 134th highest of the county's 172 tracts with a reliable estimate. 7.3% of residents live below the poverty line.
| Measure | Tract 6101 | Redwood City |
|---|---|---|
| Median household income | $128,472±$15,572 | $157,814 |
| Mean household income | $173,837±$25,171 | $226,989 |
| Per capita income | $63,903±$9,781 | $84,106 |
| People below the poverty line | 7.3%±4.7 pts | 6.3% |
| Children under 18 below the poverty line | 6.5%±7.7 pts | 5.6% |
| Households receiving SNAP | 4.6%±3.7 pts | 6.2% |
| Households with a computer | 99.2%±1.1 pts | 98.4% |
| Households with a broadband subscription | 97.1%±2.6 pts | 95.4% |
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 6101?
Owners occupy 49.7% of Census Tract 6101's occupied homes and renters 50.3%. The median owner-occupied home is valued at $1,516,600 by its owner (±$128,817). The median renter pays $2,339 a month including utilities, and 39.6% of renters pay 35% or more of their income on rent.
| Measure | Tract 6101 | Redwood City |
|---|---|---|
| Median home value (owner-occupied) | $1,516,600±$128,817 | $1,801,700 |
| Median gross rent | $2,339±$127 | $2,968 |
| Renters paying 35% or more of income on rent | 39.6%±13.2 pts | 41.6% |
| Median monthly owner costs, with a mortgage | $4,000 or more | $4,000 or more |
| Owner-occupied homes | 49.7%±7.4 pts | 48.6% |
| Renter-occupied homes | 50.3%±7.4 pts | 51.4% |
| Housing units | 918±71 | 32,135 |
| Single-family detached homes | 53.1%±7.4 pts | 43.2% |
| Mobile homes | 0.0%±4.5 pts | 1.9% |
| Built 2020 or later | 0.0%±4.5 pts | 1.0% |
| Built 2010 to 2019 | 0.0%±4.5 pts | 9.9% |
| Built 1939 or earlier | 8.4%±5.4 pts | 8.1% |
| Households with no vehicle | 5.1%±3.9 pts | 6.2% |
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 6101 get to work?
60.4% of Census Tract 6101's workers drive alone and 17.6% work from home. The average trip to work takes 26.9 minutes.
| Measure | Tract 6101 | Redwood City |
|---|---|---|
| In the labor force (age 16+) | 79.2%±4.6 pts | 69.0% |
| Unemployment rate | 3.1%±2.7 pts | 4.1% |
| Drove alone to work | 60.4%±8.5 pts | 55.3% |
| Carpooled | 9.3%±4.1 pts | 9.5% |
| Public transportation | 7.3%±4.8 pts | 3.8% |
| Walked | 2.9%±2.6 pts | 2.4% |
| Worked from home | 17.6%±5.1 pts | 26.7% |
| Mean travel time to work | 26.9 min±4.5 | 24.3 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 6101 compare with the other tracts in San Mateo County?
Among San Mateo County's tracts with a reliable estimate, Census Tract 6101 ranks as shown below (1 = highest).
| Measure | In San Mateo County | In Redwood City |
|---|---|---|
| Population | 162nd of 172 | 19th of 19 |
| Residents per square mile | 45th of 173 | 6th of 19 |
| Median household income | 134th of 172 | 15th of 19 |
| Per capita income | 115th of 172 | 13th of 19 |
| Median home value | 77th of 171 | 11th of 18 |
| Median gross rent | 148th of 169 | 18th of 19 |
| Poverty rate | 46th of 94 | 5th of 10 |
| Bachelor's degree or higher | 132nd of 172 | 14th of 19 |
| Median age | 100th of 172 | 8th of 19 |
| Owner-occupied share | 116th of 171 | 9th of 18 |
The tracts next to it on San Mateo County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 6120.01 | 131st | $130,741±$19,553 · within the margin of this tract |
| Tract 6064 | 132nd | $130,521±$62,892 · within the margin of this tract |
| Tract 6041.04 | 133rd | $130,077±$24,368 · within the margin of this tract |
| Tract 6101 | 134th | $128,472±$15,572 |
| Tract 6039 | 135th | $127,155±$40,899 · within the margin of this tract |
| Tract 6010 | 136th | $126,406±$30,221 · within the margin of this tract |
| Tract 6072 | 137th | $126,314±$18,607 · 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 6101?
1 of the 18 figures for Census Tract 6101 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