Brook Forest: Demographics & People
Brook Forest is home to 355 people, in 172 households. Population shrank 13.0% from 408 (2022) to 355 (2024). Median age 39.1 years. (1.4y younger than Jefferson County; 3.4y older than Colorado). Children under 18 are 20% of the population. Population is 86% White (non-Hispanic). The community is relatively homogeneous (Simpson index 0.13). 45% of households are family-led. County is losing 53 residents per year (2022-2023). County health: 26% adult obesity, 12% smoke.
- 2.1 people per household (vs Colorado avg 2.5).
- 55% non-family households (singles, roommates) (vs Colorado 38%).
- 60 dependents per 100 working-age (youth + seniors / 18-64) (vs Colorado 58).
Population & Trend
Population shrank 13.0% from 408 (2022) to 355 (2024). Estimated 2026 population: ~310 (extrapolated at -6.5%/yr trend). Census Bureau Vintage estimate: 256.
| Census data vintage | 2024 |
|---|---|
| Population | 9,397 people |
| Annual growth rate · Population change | -13.0% |
| Annual growth rate · Population (2022) | 408 |
| Annual growth rate · Population (2024) | 355 |
| Annual growth rate · Trend category | shrinking |
| Population | 355 people (vs Colorado 108,201) |
| Population Estimate | 256 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 39.1y is 0.2 years older than the U.S. median (38.9y). Children under 18 make up 20% — below the U.S. share of ~22%.
| Age Summary · Median age | 39.1 years (vs Colorado 35.7y) |
|---|---|
| Age Summary · Children Pct | 19.7% |
| Age Summary · Character | family-oriented |
| Age Summary · Total Pop | 355 |
| Age Summary · Under 18 | 70 |
| Age Summary · 18 To 34 | 38.0× |
| Age Summary · 35 To 64 | 184.0× |
| Age Summary · 65 Plus | 63 |
| Population under 18 | 70 |
| Median age | 39.1 years (vs Colorado 35.7y) |
Sources: Census ACS 5-Year 2024 — place-level B01001 query · Census ACS 5-Year 2023 · Refreshed 2026-04-29
Race, Ethnicity & Diversity
Of 355 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.13 (0 = single group, 1 = perfectly even distribution); this is read as relatively homogeneous.
| White residents | 372 |
|---|---|
| Black residents | 28 |
| Diversity Index · Diversity index (Simpson) | 13.0% |
| Diversity Index · Diversity label | relatively homogeneous |
| Diversity Index · Groups counted | 2 |
| Diversity Index · Largest group share | 93.0% |
| White (non-Hispanic) population | 86.5% (vs Colorado 65.2%) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Ancestry
Self-reported ancestry from Census ACS — what residents report as their ethnic origin, separate from race. Counts can exceed population because people can list multiple ancestries.
Top (7)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS).
| Residents born in this state | 128 |
|---|---|
| Residents born in another state | 218 |
| Share born in this state | 36.1% |
| Share born in another state | 63.9% |
| Native-born U.S. citizens | 61.4% |
| Naturalized citizens | 2.5% |
| Total foreign-born residents | 78 |
| From Europe | 17 |
Households & Family Composition
172 households. Averaging 1.8 people each — smaller than the U.S. average of 2.5. 45% are family households — below the U.S. share of ~65%. Of 102 families, 28% are married couples with children.
| Children under 18 | 54 |
|---|---|
| Total families | 102 |
| Married couples with children | 29 |
| Single-parent households | 12 |
| Average household size | 1.83 |
| Women who gave birth (past year) | 14.1% |
| Grandparents living with grandchildren | 8 |
| Family households | 77 households (vs Colorado 26,135) |
| Households that are families | 44.8% (vs Colorado 62.3%) |
| Total households | 172 households (vs Colorado 42,233) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Residential Stability & Migration
How long residents have lived here and where they came from. 11.3% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is losing 53 residents per year on net (IRS migration data).
| Moved within the county (past year) | 11.3% |
|---|---|
| Migration · People moving in (annual) | 8,722 |
| Migration · People moving out (annual) | 8,775 |
| Migration · Net migration (in − out) | -53 |
| Migration · Year | 2022-2023 |
Sources: IRS SOI Migration 2021-2022 · Refreshed 2026-04-12
Disability
Census ACS measures self-reported functional limitations — vision, hearing, mobility, cognitive, self-care, or independent-living. The U.S. baseline disability rate is about 12–13%; rates trend higher with median age.
| Residents with a disability | 11 |
|---|---|
| Disability rate | 2.1% |
Other
| Congressional District · District | 7 |
|---|---|
| Congressional District · Formatted | CO-07 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 08019 |
| Cdc Birth Rate · State Fips | 08 |
| Cdc Birth Rate · County Fips | 019 |
| Cdc Birth Rate · County | Clear Creek |
| Cdc Birth Rate · Birth Rate | 8.7% |
| Cdc Birth Rate · Lower Ci | 4.60 |
| Cdc Birth Rate · Upper Ci | 14.90 |
| Cdc Mortality · Fips | 08019 |
| Cdc Mortality · County | Clear Creek County |
| Cdc Mortality · Urban Rural | Large fringe metro |
| Cdc Mortality · Total Deaths 2020 2023 | 179 |
| Cdc Vaccination · Fips | 08019 |
| Cdc Vaccination · County | Clear Creek County |
| Cdc Vaccination · Dose1 Pop Pct | 57.5% |
| Cdc Vaccination · Series Complete Pct | 51.1% |
| Cdc Vaccination · Booster Pct | 58.7% |
| Cdc Vaccination · Population 2019 | 9,700 |
| Cdc Vaccination · Metro Status | Metro |
| Family Score · Score | 2.00 |
| Family Score · Schools | 2 |
| Family Score · Children Pct | 19.7% |
| Family Score · Rating | limited |
| Town Summary · Key Facts | population 355, shrinking, family-oriented, affluent, white collar |
| Town Summary · Population | 355 people (vs Colorado 108,201) |
| Town Summary · County | Clear Creek County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade