Census tract · Douglas County
Census Tract 145.03, Douglas County, Colorado
Census Tract 145.03, GEOID 08035014503, in Douglas County, Colorado, mostly within Castle Rock (89% of its census blocks). 5,893 residents in the ACS 2020-2024 5-year estimates (±483); the 2020 Census counted 6,166.
Residents, 2020-2024
5,893
±483 (90% margin)
2020 Census count: 6,166
Median household income
$109,965
±$14,395 (90% margin)
Douglas County: $149,594
Median home value
$583,900
±$48,143 (90% margin)
Douglas County: $713,600
Median gross rent
$1,700
±$276 (90% margin)
Douglas County: $2,193
Where is Census Tract 145.03?
Census Tract 145.03 is one of 72 census tracts in Douglas County, Colorado. It covers 3.63 square miles of land, 1,699 residents per square mile in 2020. Its GEOID, 08035014503, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Castle Rock | 89% |
5 census tracts border Census Tract 145.03: Tract 140.13 ($181,386), Tract 140.17 ($161,250), Tract 141.23 ($97,207), Tract 144.10 ($150,081) and Tract 145.04 ($92,188). 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 145.03?
The 2020-2024 American Community Survey puts Census Tract 145.03's population at 5,893 (±483) in 2,377 households; the 2020 Census counted 6,166 residents and 2,417 housing units.
| Measure | Tract 145.03 | Castle Rock |
|---|---|---|
| Total population | 5,893 ±483 | 79,123 |
| Households | 2,377 ±240 | 28,219 |
| Average household size | 2.46 ±0.17 | 2.78 |
| Housing units | 2,420 ±230 | 29,159 |
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 145.03?
The median resident of Census Tract 145.03 is 41.1 years old; 16.6% are under 18 and 16.4% are 65 or older. The largest group is non-Hispanic white residents at 81.0%, then Hispanic or Latino residents (of any race) at 7.2%. 8.3% of residents were born outside the United States.
| Measure | Tract 145.03 | Castle Rock |
|---|---|---|
| Median age | 41.1 ±3.9 | 36.5 |
| Under 18 years | 16.6% ±3.5 pts | 26.1% |
| 65 years and over | 16.4% ±2.3 pts | 11.4% |
| Hispanic or Latino (any race) | 7.2% ±3.5 pts | 11.7% |
| White alone, not Hispanic | 81.0% ±4.5 pts | 77.8% |
| Black or African American alone, not Hispanic | 1.1% ±1.1 pts | 0.8% |
| Asian alone, not Hispanic | 1.0% ±1.2 pts | 2.5% |
| American Indian and Alaska Native alone, not Hispanic | 1.5% ±1.7 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.7 pts | 0.1% |
| Two or more races, not Hispanic | 6.7% ±2.7 pts | 6.3% |
| Some other race alone, not Hispanic | 1.5% ±2.4 pts | 0.7% |
| Born outside the United States | 8.3% ±4.3 pts | 5.6% |
| Speak a language other than English at home (age 5+) | 10.4% ±5.6 pts | 8.2% |
| Civilian veterans (age 18+) | 7.0% ±3.1 pts | 7.5% |
| With a disability | 9.9% ±3.3 pts | 7.5% |
| No health insurance coverage | 3.4% ±2.3 pts | 4.8% |
| High school graduate or higher (age 25+) | 96.8% ±2.1 pts | 97.1% |
| Bachelor's degree or higher (age 25+) | 50.9% ±5.8 pts | 55.9% |
| Graduate or professional degree (age 25+) | 18.7% ±5.3 pts | 18.8% |
| Lived in the same house a year earlier | 82.0% ±7.6 pts | 84.4% |
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 145.03 earn?
Half of the 2,377 households in Census Tract 145.03 earn less than $109,965 a year (±$14,395), against $149,594 across Douglas County: 58th highest of the county's 72 tracts with a reliable estimate. 7.3% of residents live below the poverty line.
| Measure | Tract 145.03 | Castle Rock |
|---|---|---|
| Median household income | $109,965 ±$14,395 | $145,197 |
| Mean household income | $146,817 ±$21,530 | $171,148 |
| Per capita income | $65,397 ±$11,050 | $62,170 |
| People below the poverty line | 7.3% ±3.3 pts | 3.8% |
| Children under 18 below the poverty line | 0.0% ±4.7 pts | 2.9% |
| Households receiving SNAP | 4.6% ±2.9 pts | 3.0% |
| Households with a computer | 97.9% ±2.0 pts | 98.4% |
| Households with a broadband subscription | 98.5% ±2.0 pts | 97.7% |
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 145.03?
Owners occupy 77.5% of Census Tract 145.03's occupied homes and renters 22.5%. The median owner-occupied home is valued at $583,900 by its owner (±$48,143). The median renter pays $1,700 a month including utilities, and 56.3% of renters pay 35% or more of their income on rent.
| Measure | Tract 145.03 | Castle Rock |
|---|---|---|
| Median home value (owner-occupied) | $583,900 ±$48,143 | $652,900 |
| Median gross rent | $1,700 ±$276 | $2,000 |
| Renters paying 35% or more of income on rent | 56.3% ±17.9 pts | 51.1% |
| Median monthly owner costs, with a mortgage | $2,396 ±$210 | $2,787 |
| Owner-occupied homes | 77.5% ±6.3 pts | 78.8% |
| Renter-occupied homes | 22.5% ±6.3 pts | 21.2% |
| Housing units | 2,420 ±230 | 29,159 |
| Single-family detached homes | 61.7% ±7.2 pts | 73.7% |
| Mobile homes | 0.0% ±1.7 pts | 0.5% |
| Built 2020 or later | 2.9% ±1.7 pts | 8.3% |
| Built 2010 to 2019 | 15.3% ±5.4 pts | 30.8% |
| Built 1939 or earlier | 0.0% ±1.7 pts | 0.3% |
| Households with no vehicle | 3.1% ±3.3 pts | 2.3% |
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 145.03 get to work?
70.4% of Census Tract 145.03's workers drive alone and 22.0% work from home. The average trip to work takes 28.2 minutes.
| Measure | Tract 145.03 | Castle Rock |
|---|---|---|
| In the labor force (age 16+) | 73.4% ±4.4 pts | 74.6% |
| Unemployment rate | 4.7% ±5.1 pts | 4.4% |
| Drove alone to work | 70.4% ±5.8 pts | 62.9% |
| Carpooled | 5.3% ±4.2 pts | 5.3% |
| Public transportation | 0.2% ±0.3 pts | 0.1% |
| Walked | 2.2% ±2.5 pts | 1.7% |
| Worked from home | 22.0% ±4.7 pts | 28.8% |
| Mean travel time to work | 28.2 min ±3.9 | 28.6 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 145.03 compare with the other tracts in Douglas County?
Among Douglas County's tracts with a reliable estimate, Census Tract 145.03 ranks as shown below (1 = highest).
| Measure | In Douglas County | In Castle Rock |
|---|---|---|
| Population | 25th of 72 | 8th of 13 |
| Residents per square mile | 42nd of 72 | 6th of 13 |
| Median household income | 58th of 72 | 9th of 13 |
| Per capita income | 45th of 72 | 7th of 13 |
| Median home value | 63rd of 72 | 11th of 13 |
| Median gross rent | 64th of 64 | 13th of 13 |
| Poverty rate | 5th of 14 | 2nd of 3 |
| Bachelor's degree or higher | 62nd of 72 | 11th of 13 |
| Median age | 31st of 72 | 4th of 13 |
| Owner-occupied share | 48th of 72 | 7th of 13 |
The tracts next to it on Douglas County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 141.14 | 55th | $127,250±$20,602 · within the margin of this tract |
| Tract 141.15 | 56th | $117,273±$34,385 · within the margin of this tract |
| Tract 140.10 | 57th | $110,339±$17,963 · within the margin of this tract |
| Tract 145.03 | 58th | $109,965±$14,395 |
| Tract 145.05 | 59th | $109,173±$20,734 · within the margin of this tract |
| Tract 143 | 60th | $109,063±$34,614 · within the margin of this tract |
| Tract 141.26 | 61st | $108,750±$19,335 · 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 145.03?
2 of the 18 figures for Census Tract 145.03 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