Census tract · Jefferson County
Census Tract 603, Jefferson County, Colorado
Census Tract 603, GEOID 08059060300, in Jefferson County, Colorado, mostly within Westminster (96% of its census blocks). 4,157 residents in the ACS 2020-2024 5-year estimates (±516); the 2020 Census counted 4,512.
Residents, 2020-2024
4,157
±516 (90% margin)
2020 Census count: 4,512
Median household income
$120,444
±$13,614 (90% margin)
Jefferson County: $110,656
Median home value
$567,300
±$31,070 (90% margin)
Jefferson County: $637,600
Median gross rent
$2,788
±$138 (90% margin)
Jefferson County: $1,861
Where is Census Tract 603?
Census Tract 603 is one of 146 census tracts in Jefferson County, Colorado. It covers 0.71 square miles of land, 6,328 residents per square mile in 2020. Its GEOID, 08059060300, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Westminster | 96% |
4 census tracts border Census Tract 603: Tract 94.08 in Adams County ($151,250), Tract 302 in Broomfield County ($103,377), Tract 303 in Broomfield County ($76,750) and Tract 604 ($121,444). 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 603?
The 2020-2024 American Community Survey puts Census Tract 603's population at 4,157 (±516) in 1,581 households; the 2020 Census counted 4,512 residents and 1,612 housing units.
| Measure | Tract 603 | Westminster |
|---|---|---|
| Total population | 4,157 ±516 | 115,484 |
| Households | 1,581 ±186 | 48,106 |
| Average household size | 2.62 ±0.17 | 2.39 |
| Housing units | 1,622 ±177 | 50,471 |
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 603?
The median resident of Census Tract 603 is 38.9 years old; 23.3% are under 18 and 16.1% are 65 or older. The largest group is non-Hispanic white residents at 68.5%, then Hispanic or Latino residents (of any race) at 14.4%. 8.1% of residents were born outside the United States.
| Measure | Tract 603 | Westminster |
|---|---|---|
| Median age | 38.9 ±4.4 | 37.4 |
| Under 18 years | 23.3% ±2.6 pts | 19.3% |
| 65 years and over | 16.1% ±4.4 pts | 15.2% |
| Hispanic or Latino (any race) | 14.4% ±4.5 pts | 25.4% |
| White alone, not Hispanic | 68.5% ±5.6 pts | 63.9% |
| Black or African American alone, not Hispanic | 0.6% ±0.8 pts | 1.1% |
| Asian alone, not Hispanic | 8.2% ±3.3 pts | 4.4% |
| American Indian and Alaska Native alone, not Hispanic | 1.4% ±1.5 pts | 0.4% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.0 pts | 0.0% |
| Two or more races, not Hispanic | 5.1% ±2.7 pts | 4.1% |
| Some other race alone, not Hispanic | 1.8% ±2.4 pts | 0.7% |
| Born outside the United States | 8.1% ±2.8 pts | 8.6% |
| Speak a language other than English at home (age 5+) | 16.0% ±6.0 pts | 16.2% |
| Civilian veterans (age 18+) | 3.8% ±1.8 pts | 5.7% |
| With a disability | 9.6% ±3.5 pts | 11.6% |
| No health insurance coverage | 3.8% ±2.3 pts | 8.2% |
| High school graduate or higher (age 25+) | 97.2% ±1.8 pts | 92.9% |
| Bachelor's degree or higher (age 25+) | 52.5% ±8.1 pts | 44.6% |
| Graduate or professional degree (age 25+) | 16.0% ±4.7 pts | 14.3% |
| Lived in the same house a year earlier | 96.2% ±2.8 pts | 83.3% |
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 603 earn?
Half of the 1,581 households in Census Tract 603 earn less than $120,444 a year (±$13,614), against $110,656 across Jefferson County: 62nd highest of the county's 142 tracts with a reliable estimate.
| Measure | Tract 603 | Westminster |
|---|---|---|
| Median household income | $120,444 ±$13,614 | $100,272 |
| Mean household income | $128,092 ±$10,470 | $126,624 |
| Per capita income | $52,200 ±$4,013 | $53,904 |
| People below the poverty line | 2.9% ±2.1 pts | 7.3% |
| Children under 18 below the poverty line | 2.2% ±3.5 pts | 9.5% |
| Households receiving SNAP | 6.5% ±4.6 pts | 7.2% |
| Households with a computer | 99.4% ±0.7 pts | 96.5% |
| Households with a broadband subscription | 97.2% ±2.4 pts | 94.2% |
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 603?
Owners occupy 88.4% of Census Tract 603's occupied homes and renters 11.6%. The median owner-occupied home is valued at $567,300 by its owner (±$31,070). The median renter pays $2,788 a month including utilities, and 51.6% of renters pay 35% or more of their income on rent.
| Measure | Tract 603 | Westminster |
|---|---|---|
| Median home value (owner-occupied) | $567,300 ±$31,070 | $532,400 |
| Median gross rent | $2,788 ±$138 | $1,882 |
| Renters paying 35% or more of income on rent | 51.6% ±24.5 pts | 37.4% |
| Median monthly owner costs, with a mortgage | $2,117 ±$131 | $2,252 |
| Owner-occupied homes | 88.4% ±5.1 pts | 61.9% |
| Renter-occupied homes | 11.6% ±5.1 pts | 38.1% |
| Housing units | 1,622 ±177 | 50,471 |
| Single-family detached homes | 99.6% ±0.6 pts | 54.5% |
| Mobile homes | 0.0% ±2.6 pts | 1.0% |
| Built 2020 or later | 0.0% ±2.6 pts | 1.6% |
| Built 2010 to 2019 | 0.3% ±0.5 pts | 10.6% |
| Built 1939 or earlier | 2.3% ±3.5 pts | 0.8% |
| Households with no vehicle | 0.0% ±2.6 pts | 4.9% |
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 603 get to work?
68.5% of Census Tract 603's workers drive alone and 24.5% work from home. The average trip to work takes 28.4 minutes.
| Measure | Tract 603 | Westminster |
|---|---|---|
| In the labor force (age 16+) | 71.0% ±5.7 pts | 72.9% |
| Unemployment rate | 2.4% ±2.1 pts | 3.7% |
| Drove alone to work | 68.5% ±6.5 pts | 68.0% |
| Carpooled | 3.2% ±2.6 pts | 6.4% |
| Public transportation | 2.8% ±2.3 pts | 1.2% |
| Walked | 0.0% ±1.9 pts | 1.0% |
| Worked from home | 24.5% ±6.3 pts | 21.7% |
| Mean travel time to work | 28.4 min ±4.0 | 27.0 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 603 compare with the other tracts in Jefferson County?
Among Jefferson County's tracts with a reliable estimate, Census Tract 603 ranks as shown below (1 = highest).
| Measure | In Jefferson County | In Westminster |
|---|---|---|
| Population | 59th of 143 | 16th of 26 |
| Residents per square mile | 12th of 146 | 6th of 26 |
| Median household income | 62nd of 142 | 10th of 26 |
| Per capita income | 94th of 143 | 16th of 26 |
| Median home value | 95th of 140 | 12th of 25 |
| Median gross rent | 9th of 131 | 4th of 26 |
| Bachelor's degree or higher | 63rd of 142 | 11th of 26 |
| Median age | 88th of 143 | 12th of 26 |
| Owner-occupied share | 44th of 140 | 5th of 25 |
The tracts next to it on Jefferson County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 604 | 59th | $121,444±$12,486 · within the margin of this tract |
| Tract 98.27 | 60th | $121,279±$19,357 · within the margin of this tract |
| Tract 120.44 | 61st | $121,169±$20,718 · within the margin of this tract |
| Tract 603 | 62nd | $120,444±$13,614 |
| Tract 120.43 | 63rd | $120,297±$10,053 · within the margin of this tract |
| Tract 120.55 | 64th | $119,643±$7,302 · within the margin of this tract |
| Tract 103.04 | 65th | $118,833±$31,751 · 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 603?
2 of the 18 figures for Census Tract 603 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