Census tract · Santa Clara County
Census Tract 5085.09, Santa Clara County, California
Census Tract 5085.09, GEOID 06085508509, in Santa Clara County, California, entirely within Sunnyvale. 4,240 residents in the ACS 2020-2024 5-year estimates (±668); the 2020 Census counted 4,231.
Residents, 2020-2024
4,240
±668 (90% margin)
2020 Census count: 4,231
Median household income
$161,270
±$32,436 (90% margin)
Santa Clara County: $164,281
Median home value
not published
Santa Clara County: $1,490,600
Median gross rent
$2,734
±$141 (90% margin)
Santa Clara County: $2,857
Where is Census Tract 5085.09?
Census Tract 5085.09 is one of 408 census tracts in Santa Clara County, California. It covers 0.21 square miles of land, 20,148 residents per square mile in 2020. Its GEOID, 06085508509, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Sunnyvale | 100% |
5 census tracts border Census Tract 5085.09: Tract 5084.04 ($213,393), Tract 5085.03 ($167,763), Tract 5085.10 ($174,167), Tract 5086.02 ($180,959) and Tract 5087.05 ($189,571). 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 5085.09?
The 2020-2024 American Community Survey puts Census Tract 5085.09's population at 4,240 (±668) in 2,240 households; the 2020 Census counted 4,231 residents and 2,124 housing units.
| Measure | Tract 5085.09 | Sunnyvale |
|---|---|---|
| Total population | 4,240±668 | 154,236 |
| Households | 2,240±231 | 60,293 |
| Average household size | 1.89±0.22 | 2.54 |
| Housing units | 2,331±214 | 63,239 |
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 5085.09?
The median resident of Census Tract 5085.09 is 31.8 years old; 8.3% are under 18 and 19.1% are 65 or older. The largest group is non-Hispanic Asian residents at 60.2%, then non-Hispanic white residents at 16.9%. 59.9% of residents were born outside the United States.
| Measure | Tract 5085.09 | Sunnyvale |
|---|---|---|
| Median age | 31.8±2.7 | 35.2 |
| Under 18 years | 8.3%±3.4 pts | 19.5% |
| 65 years and over | 19.1%±8.0 pts | 13.0% |
| Hispanic or Latino (any race) | 11.3%±7.7 pts | 17.0% |
| White alone, not Hispanic | 16.9%±5.4 pts | 26.5% |
| Black or African American alone, not Hispanic | 1.1%±1.7 pts | 1.5% |
| Asian alone, not Hispanic | 60.2%±12.7 pts | 49.4% |
| American Indian and Alaska Native alone, not Hispanic | 0.9%±1.4 pts | 0.2% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 9.1%±10.8 pts | 0.4% |
| Two or more races, not Hispanic | 0.5%±0.5 pts | 4.3% |
| Some other race alone, not Hispanic | 0.1%±0.1 pts | 0.7% |
| Born outside the United States | 59.9%±10.3 pts | 50.2% |
| Speak a language other than English at home (age 5+) | 68.4%±11.1 pts | 60.5% |
| Civilian veterans (age 18+) | 0.0%±1.1 pts | 2.7% |
| With a disability | 8.7%±5.4 pts | 7.1% |
| No health insurance coverage | 0.0%±1.0 pts | 2.9% |
| High school graduate or higher (age 25+) | 91.2%±5.2 pts | 94.4% |
| Bachelor's degree or higher (age 25+) | 64.8%±11.5 pts | 69.3% |
| Graduate or professional degree (age 25+) | 40.9%±9.5 pts | 39.2% |
| Lived in the same house a year earlier | 69.1%±11.1 pts | 80.2% |
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 5085.09 earn?
Half of the 2,240 households in Census Tract 5085.09 earn less than $161,270 a year (±$32,436), against $164,281 across Santa Clara County: 218th highest of the county's 404 tracts with a reliable estimate. 9.2% of residents live below the poverty line.
| Measure | Tract 5085.09 | Sunnyvale |
|---|---|---|
| Median household income | $161,270±$32,436 | $186,170 |
| Mean household income | $173,276±$25,999 | $254,735 |
| Per capita income | $92,714±$14,323 | $101,185 |
| People below the poverty line | 9.2%±4.6 pts | 5.8% |
| Children under 18 below the poverty line | 4.6%±7.3 pts | 5.6% |
| Households receiving SNAP | 11.7%±6.2 pts | 3.6% |
| Households with a computer | 94.7%±3.8 pts | 99.0% |
| Households with a broadband subscription | 92.5%±5.7 pts | 96.5% |
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 5085.09?
The median renter pays $2,734 a month including utilities, and 23.2% of renters pay 35% or more of their income on rent.
| Measure | Tract 5085.09 | Sunnyvale |
|---|---|---|
| Median gross rent | $2,734±$141 | $3,039 |
| Renters paying 35% or more of income on rent | 23.2%±10.4 pts | 28.2% |
| Owner-occupied homes | 2.7%±1.8 pts | 43.8% |
| Renter-occupied homes | 97.3%±1.8 pts | 56.2% |
| Housing units | 2,331±214 | 63,239 |
| Single-family detached homes | 6.8%±6.4 pts | 36.0% |
| Mobile homes | 0.0%±1.8 pts | 5.7% |
| Built 2020 or later | 0.0%±1.8 pts | 1.8% |
| Built 2010 to 2019 | 6.6%±5.0 pts | 10.0% |
| Built 1939 or earlier | 2.0%±3.1 pts | 1.5% |
| Households with no vehicle | 22.5%±7.6 pts | 7.0% |
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 5085.09 get to work?
47.3% of Census Tract 5085.09's workers drive alone and 27.6% work from home. The average trip to work takes 23.6 minutes.
| Measure | Tract 5085.09 | Sunnyvale |
|---|---|---|
| In the labor force (age 16+) | 71.8%±7.7 pts | 72.5% |
| Unemployment rate | 6.1%±4.8 pts | 4.5% |
| Drove alone to work | 47.3%±12.8 pts | 53.7% |
| Carpooled | 5.7%±3.9 pts | 8.3% |
| Public transportation | 11.9%±6.6 pts | 3.9% |
| Walked | 5.2%±5.4 pts | 1.6% |
| Worked from home | 27.6%±10.1 pts | 29.2% |
| Mean travel time to work | 23.6 min±3.1 | 23.0 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 5085.09 compare with the other tracts in Santa Clara County?
Among Santa Clara County's tracts with a reliable estimate, Census Tract 5085.09 ranks as shown below (1 = highest).
| Measure | In Santa Clara County | In Sunnyvale |
|---|---|---|
| Population | 235th of 408 | 21st of 35 |
| Residents per square mile | 13th of 408 | 3rd of 35 |
| Median household income | 218th of 404 | 24th of 35 |
| Per capita income | 153rd of 408 | 21st of 35 |
| Median gross rent | 255th of 394 | 27th of 35 |
| Poverty rate | 85th of 223 | 3rd of 18 |
| Bachelor's degree or higher | 157th of 408 | 23rd of 35 |
| Median age | 382nd of 408 | 33rd of 35 |
The tracts next to it on Santa Clara County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 5090.01 | 215th | $162,981±$47,228 · within the margin of this tract |
| Tract 5054.01 | 216th | $162,000±$38,797 · within the margin of this tract |
| Tract 5043.23 | 217th | $161,552±$22,090 · within the margin of this tract |
| Tract 5085.09 | 218th | $161,270±$32,436 |
| Tract 5031.25 | 219th | $160,833±$60,582 · within the margin of this tract |
| Tract 5120.26 | 220th | $160,156±$23,519 · within the margin of this tract |
| Tract 5091.06 | 221st | $159,951±$32,239 · 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 5085.09?
3 of the 17 figures for Census Tract 5085.09 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