Census tract · Colusa County
Census Tract 1, Colusa County, California
Census Tract 1, GEOID 06011000100, in Colusa County, California, partly within Arbuckle, College City and Grimes. 5,151 residents in the ACS 2020-2024 5-year estimates (±590); the 2020 Census counted 5,389.
Residents, 2020-2024
5,151
±590 (90% margin)
2020 Census count: 5,389
Median household income
$85,890
±$11,973 (90% margin)
Colusa County: $75,672
Median home value
$425,200
±$133,901 (90% margin)
Colusa County: $393,400
Median gross rent
$1,131
±$200 (90% margin)
Colusa County: $1,157
Where is Census Tract 1?
Census Tract 1 is one of 6 census tracts in Colusa County, California. It covers 218.46 square miles of land, 25 residents per square mile in 2020. Its GEOID, 06011000100, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Arbuckle | 27% |
| College City | 10% |
| Grimes | 6% |
6 census tracts border Census Tract 1: Tract 2 ($66,148), Tract 3.01 ($83,774), Tract 3.02 ($99,045), Tract 509 in Sutter County ($74,063), Tract 114 in Yolo County ($66,986) and Tract 115 in Yolo County ($101,833). 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 1?
The 2020-2024 American Community Survey puts Census Tract 1's population at 5,151 (±590) in 1,689 households; the 2020 Census counted 5,389 residents and 1,787 housing units.
| Measure | Tract 1 | Colusa County |
|---|---|---|
| Total population | 5,151 ±590 | 21,984 |
| Households | 1,689 ±374 | 7,512 |
| Average household size | 3.05 ±0.57 | 2.89 |
| Housing units | 1,846 ±376 | 8,211 |
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 1?
The median resident of Census Tract 1 is 38.4 years old; 23.4% are under 18 and 13.5% are 65 or older. The largest group is Hispanic or Latino residents (of any race) at 63.3%, then non-Hispanic white residents at 27.6%. 28.8% of residents were born outside the United States.
| Measure | Tract 1 | Colusa County |
|---|---|---|
| Median age | 38.4 ±7.7 | 35.9 |
| Under 18 years | 23.4% ±5.1 pts | 26.9% |
| 65 years and over | 13.5% ±3.6 pts | 15.5% |
| Hispanic or Latino (any race) | 63.3% ±8.4 pts | 62.9% |
| White alone, not Hispanic | 27.6% ±7.1 pts | 29.8% |
| Black or African American alone, not Hispanic | 0.0% ±0.8 pts | 1.5% |
| Asian alone, not Hispanic | 0.4% ±0.9 pts | 0.9% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.8 pts | 0.5% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.8 pts | 0.1% |
| Two or more races, not Hispanic | 4.8% ±6.4 pts | 2.5% |
| Some other race alone, not Hispanic | 3.9% ±4.1 pts | 1.7% |
| Born outside the United States | 28.8% ±9.7 pts | 27.5% |
| Speak a language other than English at home (age 5+) | 51.8% ±7.7 pts | 53.1% |
| Civilian veterans (age 18+) | 5.0% ±2.4 pts | 4.5% |
| With a disability | 10.5% ±3.9 pts | 12.1% |
| No health insurance coverage | 9.3% ±4.7 pts | 8.0% |
| High school graduate or higher (age 25+) | 72.5% ±7.6 pts | 74.2% |
| Bachelor's degree or higher (age 25+) | 16.9% ±6.6 pts | 16.4% |
| Graduate or professional degree (age 25+) | 2.8% ±1.8 pts | 4.4% |
| Lived in the same house a year earlier | 97.8% ±2.1 pts | 93.8% |
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 1 earn?
Half of the 1,689 households in Census Tract 1 earn less than $85,890 a year (±$11,973), against $75,672 across Colusa County: 2nd highest of the county's 6 tracts with a reliable estimate.
| Measure | Tract 1 | Colusa County |
|---|---|---|
| Median household income | $85,890 ±$11,973 | $75,672 |
| Mean household income | $107,688 ±$23,998 | $95,368 |
| Per capita income | $36,475 ±$4,110 | $33,882 |
| People below the poverty line | 4.9% ±4.6 pts | 11.4% |
| Children under 18 below the poverty line | 1.7% ±2.8 pts | 12.6% |
| Households receiving SNAP | 7.0% ±5.0 pts | 16.4% |
| Households with a computer | 87.1% ±8.1 pts | 92.2% |
| Households with a broadband subscription | 79.2% ±10.7 pts | 84.6% |
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 1?
Owners occupy 68.4% of Census Tract 1's occupied homes and renters 31.6%. The median owner-occupied home is valued at $425,200 by its owner (±$133,901). The median renter pays $1,131 a month including utilities, and 31.4% of renters pay 35% or more of their income on rent.
| Measure | Tract 1 | Colusa County |
|---|---|---|
| Median home value (owner-occupied) | $425,200 ±$133,901 | $393,400 |
| Median gross rent | $1,131 ±$200 | $1,157 |
| Renters paying 35% or more of income on rent | 31.4% ±16.0 pts | 45.8% |
| Median monthly owner costs, with a mortgage | $2,239 ±$991 | $2,048 |
| Owner-occupied homes | 68.4% ±13.8 pts | 62.2% |
| Renter-occupied homes | 31.6% ±13.8 pts | 37.8% |
| Housing units | 1,846 ±376 | 8,211 |
| Single-family detached homes | 87.6% ±6.9 pts | 80.4% |
| Mobile homes | 3.0% ±3.3 pts | 5.1% |
| Built 2020 or later | 0.0% ±2.3 pts | 1.1% |
| Built 2010 to 2019 | 17.1% ±9.0 pts | 8.6% |
| Built 1939 or earlier | 21.0% ±11.4 pts | 14.1% |
| Households with no vehicle | 1.0% ±1.7 pts | 4.6% |
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 1 get to work?
79.1% of Census Tract 1's workers drive alone. The average trip to work takes 22.2 minutes.
| Measure | Tract 1 | Colusa County |
|---|---|---|
| In the labor force (age 16+) | 64.1% ±7.2 pts | 63.0% |
| Unemployment rate | 2.6% ±2.3 pts | 9.8% |
| Drove alone to work | 79.1% ±8.0 pts | 82.1% |
| Carpooled | 12.7% ±6.2 pts | 10.1% |
| Public transportation | 0.0% ±1.7 pts | 0.8% |
| Walked | 0.0% ±1.7 pts | 0.7% |
| Worked from home | 7.0% ±4.7 pts | 5.3% |
| Mean travel time to work | 22.2 min ±5.9 | 24.2 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 1 compare with the other tracts in Colusa County?
Among Colusa County's tracts with a reliable estimate, Census Tract 1 ranks as shown below (1 = highest).
| Measure | In Colusa County |
|---|---|
| Population | 2nd of 6 |
| Residents per square mile | 4th of 6 |
| Median household income | 2nd of 6 |
| Per capita income | 2nd of 6 |
| Median home value | 2nd of 6 |
| Median gross rent | 3rd of 6 |
| Bachelor's degree or higher | 3rd of 5 |
| Median age | 3rd of 6 |
| Owner-occupied share | 2nd of 6 |
The tracts next to it on Colusa County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 3.02 | 1st | $99,045±$47,597 · within the margin of this tract |
| Tract 1 | 2nd | $85,890±$11,973 |
| Tract 3.01 | 3rd | $83,774±$16,894 · within the margin of this tract |
| Tract 5 | 4th | $70,709±$13,850 · within the margin of this tract |
| Tract 2 | 5th | $66,148±$13,803 |
"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 1?
4 of the 18 figures for Census Tract 1 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