States › California › Contra Costa County › Blackhawk
Place · Contra Costa County, California
Blackhawk, CA
9,637 residents in the 2020 Census, 7,677 adults. Incorporated place or census-designated place; CDC PLACES 2025 release.
- Contra Costa County
- California
- Crude and age-adjusted estimates
CDC's PLACES project publishes model-based estimates of 40 health measures for Blackhawk, in Contra Costa County, California: 9,637 residents in the 2020 Census, 7,677 of them adults.
In the 2025 release it estimates that 23.9% of adults have obesity (95% confidence interval 19.8–28.0%), similar to Contra Costa County's 28.0%, in line with the California figure of 27.8% (site aggregate), lower than the national estimate of 32.8%. Where intervals overlap the figures are described as similar, because the model cannot separate them.
Diagnosed diabetes: 11.0% of adults (95% confidence interval 9.5–12.6%) in the 2025 release, similar to Contra Costa County's 11.3%, in line with the California figure of 11.7% (site aggregate), similar to the national estimate of 12.0%.
Across the 40 measures published for both, the interval for Blackhawk lies entirely above the Contra Costa County interval for 3 measures, entirely below it for 9 and overlaps it for 28.
Report card: 40 measures by CDC category
Crude prevalence is the estimated share of all adults. Age-adjusted prevalence is standardised to the 2000 US standard population so that areas with different age structures can be compared. CDC: "Age-adjusted estimates are only available at the county and place-level."
estimate with 95% intervalContra Costa Co.CA figureUS estimate
Health outcomes (12)vs Contra Costa Co.: 1 higher · 1 lower · 10 similar
Prevention (7)vs Contra Costa Co.: 2 higher · 1 lower · 4 similar
Health risk behaviors (4)vs Contra Costa Co.: 0 higher · 0 lower · 4 similar
Disability (7)vs Contra Costa Co.: 0 higher · 2 lower · 5 similar
Health status (3)vs Contra Costa Co.: 0 higher · 0 lower · 3 similar
Health-related social needs (7)vs Contra Costa Co.: 0 higher · 5 lower · 2 similar
Flags: Co. = Contra Costa County, St. = California figure (site aggregate, no interval: above, below or in line), US = national estimate. ↑ interval entirely above, ↓ entirely below, ≈ overlapping or containing the reference. Release column in colour: not published for this place in the 2025 release, most recent published release shown.
Compared with county, state and nation
| Measure (crude) | Blackhawk | Contra Costa County | California (site aggregate) | United States |
|---|---|---|---|---|
| Obesity | 23.9% 19.8–28.0 | 28.0% 23.8–32.5 · similar | 27.8% in line | 32.8% 32.4–33.1 · lower |
| Diabetes | 11.0% 9.5–12.6 | 11.3% 9.7–12.9 · similar | 11.7% in line | 12.0% 11.8–12.2 · similar |
| High Blood Pressure | 33.3% 29.8–36.6 | 31.2% 28.2–34.3 · similar | 30.5% in line | 34.4% 34.0–34.7 · similar |
| Current Asthma | 8.9% 7.8–10.0 | 9.4% 8.3–10.4 · similar | 9.3% in line | 9.8% 9.6–10.0 · similar |
| COPD | 4.4% 3.7–5.1 | 4.7% 3.9–5.6 · similar | 5.1% in line | 6.2% 6.1–6.3 · lower |
| Coronary Heart Disease | 5.9% 5.2–6.7 | 5.5% 4.8–6.2 · similar | 5.6% in line | 6.4% 6.2–6.5 · similar |
| Depression | 18.1% 15.6–20.7 | 19.1% 16.5–21.6 · similar | 20.1% in line | 20.2% 19.9–20.5 · similar |
| Current Cigarette Smoking | 6.7% 5.4–8.1 | 9.3% 7.5–11.1 · similar | 10.9% below | 11.4% 11.2–11.6 · lower |
| Binge Drinking | 13.6% 11.3–15.9 | 15.1% 12.8–17.7 · similar | 15.3% in line | 15.2% 15.0–15.5 · similar |
| Physical Inactivity | 18.7% 15.7–21.9 | 23.7% 20.0–27.3 · similar | 24.6% below | 24.5% 24.2–24.8 · lower |
| Health Insurance | 3.3% 2.7–4.0 | 7.8% 6.0–9.6 · lower | 10.6% below | 11.0% 10.7–11.3 · lower |
| General Health | 14.0% 11.9–16.1 | 18.5% 15.9–21.2 · similar | 22.1% below | 19.2% 18.9–19.5 · lower |
| Measure (age-adjusted) | Blackhawk | Contra Costa County | California (site aggregate) | United States |
|---|---|---|---|---|
| Obesity | 23.3% 19.4–27.2 | 27.8% 23.5–32.2 · similar | 27.9% below | 32.9% 32.5–33.2 · lower |
| Diabetes | 7.6% 6.6–8.7 | 9.6% 8.3–11.0 · similar | 10.7% below | 10.3% 10.1–10.5 · lower |
| High Blood Pressure | 24.8% 22.1–27.5 | 27.5% 24.7–30.3 · similar | 28.5% below | 30.7% 30.4–31.0 · lower |
| Current Asthma | 9.0% 7.9–10.1 | 9.4% 8.3–10.5 · similar | 9.3% in line | 9.8% 9.6–10.0 · similar |
| COPD | 3.1% 2.7–3.6 | 4.0% 3.4–4.7 · similar | 4.6% below | 5.3% 5.2–5.4 · lower |
| Coronary Heart Disease | 3.9% 3.4–4.3 | 4.5% 4.0–5.1 · similar | 5.0% below | 5.3% 5.2–5.4 · lower |
| Depression | 20.0% 17.3–22.7 | 19.7% 17.1–22.3 · similar | 20.4% in line | 20.7% 20.4–21.0 · similar |
| Current Cigarette Smoking | 6.8% 5.6–8.2 | 9.3% 7.4–11.1 · similar | 11.0% below | 11.6% 11.4–11.9 · lower |
| Binge Drinking | 17.1% 14.4–20.0 | 16.5% 14.0–19.3 · similar | 16.2% in line | 16.6% 16.3–16.9 · similar |
| Physical Inactivity | 16.8% 14.2–19.6 | 22.7% 19.1–26.2 · similar | 24.2% below | 23.7% 23.4–24.0 · lower |
| Health Insurance | 3.9% 3.2–4.7 | 8.1% 6.3–10.1 · lower | 10.7% below | 11.5% 11.2–11.9 · lower |
| General Health | 12.2% 10.5–14.0 | 17.6% 15.1–20.1 · lower | 21.6% below | 18.3% 18.0–18.6 · lower |
Twelve headline measures; the toggle above switches between crude and age-adjusted. State figures are population-weighted county estimates computed by this site and carry no interval; the county and US columns carry CDC's 95% intervals.
Estimates by release
What each PLACES release published for Blackhawk (crude prevalence with 95% interval). CDC advises that the estimates cannot be used to track local change over time: each release re-models a different survey year onto a fixed population, intervals usually overlap and the interval method changed in 2023. Listed for reference only. The 2022 and 2023 columns use 2010-vintage Census geographies for ZIP Codes and places (the same code may have covered a different area); 2024 onward use 2020 geographies.
| Measure | 2022 release | 2023 release | 2024 release | 2025 release |
|---|---|---|---|---|
| COPD | 4.4% 3.8–5.1 | 4.1% 3.4–4.8 | 5.1% 4.6–5.7 | 4.4% 3.7–5.1 |
| Coronary Heart Disease | 5.0% 4.6–5.4 | 4.5% 4.0–5.2 | 6.7% 6.0–7.3 | 5.9% 5.2–6.7 |
| Current Asthma | 8.5% 8.2–8.8 | 8.4% 7.4–9.6 | 8.8% 7.8–10.0 | 8.9% 7.8–10.0 |
| Depression | 14.9% 14.3–15.6 | 15.5% 12.9–18.3 | 16.6% 14.3–19.2 | 18.1% 15.6–20.7 |
| Diabetes | 8.5% 8.0–9.1 | 8.8% 7.4–10.1 | 11.3% 9.8–12.9 | 11.0% 9.5–12.6 |
| High Blood Pressure | 27.2% 26.3–28.1 | 27.0% 23.5–30.5 | 30.3% 26.5–34.0 | 33.3% 29.8–36.6 |
| Obesity | 24.8% 23.7–25.9 | 21.8% 17.5–26.5 | 24.7% 20.7–29.0 | 23.9% 19.8–28.0 |
| Health Insurance | 5.0% 4.4–5.7 | 3.0% 2.4–3.7 | 3.2% 2.6–3.8 | 3.3% 2.7–4.0 |
| Binge Drinking | 16.5% 16.0–16.9 | 15.0% 12.4–17.9 | 15.7% 13.2–18.5 | 13.6% 11.3–15.9 |
| Current Cigarette Smoking | 7.3% 5.9–8.7 | 6.9% 5.3–8.7 | 7.6% 6.6–8.8 | 6.7% 5.4–8.1 |
| Physical Inactivity | 13.7% 12.4–15.0 | 12.6% 10.2–15.3 | 15.7% 13.3–18.4 | 18.7% 15.7–21.9 |
| General Health | 8.8% 7.8–9.9 | 9.8% 8.4–11.5 | 12.8% 11.3–14.3 | 14.0% 11.9–16.1 |
Nearby
All 52 places and 43 ZIP Codes in Contra Costa County · California (1,545 places).
Questions and answers
What share of adults in Blackhawk have obesity, according to PLACES?
PLACES estimates 23.9% (95% confidence interval 19.8–28.0%) in the 2025 release, based on 2023 BRFSS responses modelled onto the area's adult population. It is a modelled estimate for the whole adult population of the area, not a count of diagnoses.
How common is diagnosed diabetes in Blackhawk?
PLACES estimates 11.0% of adults (95% confidence interval 9.5–12.6%) in the 2025 release. The national estimate in the same release is 12.0%.
Is Blackhawk different from Contra Costa County on obesity?
The 95% confidence intervals for Blackhawk and Contra Costa County overlap for obesity, so the estimates are described as similar; the model cannot separate them.
Can these figures describe a person who lives in Blackhawk?
No. CDC states: "We do not produce estimates for individuals; only aggregated results for counties, places, census tracts, or ZCTAs." The figures describe the expected prevalence across the area's adult population given its demographic make-up and its county and state; they say nothing about any resident.
Can Blackhawk be ranked or tracked over time with these figures?
CDC advises that the data "should not be used for ranking the overall health of any county, place, census tract, or ZCTA" and that the modelling procedure "does not support using the estimates to track changes at the local level over time". Areas can be compared on individual measures, with their confidence intervals; this site lists estimates by release for reference only.
Where does this data come from?
CDC PLACES: Local Data for Better Health, 2025 release (data updated 4 Dec 2025), which models Behavioral Risk Factor Surveillance System responses with Census population and American Community Survey data. Earlier releases (2022, 2023, 2024) are shown for reference. Boundaries and ZIP-to-county relationships are from the US Census Bureau.
Provenance
Source: Centers for Disease Control and Prevention, PLACES: Local Data for Better Health, 2025 release (data updated 4 Dec 2025), with the 2022, 2023, 2024 releases for reference; US government work, public domain. Dataset on data.cdc.gov. Boundaries and ZIP-to-county relationships: US Census Bureau. Percentages are shown to one decimal as CDC publishes them; state figures are population-weighted means computed by this site. The county is the one containing the centroid CDC publishes for the place, tested against the Census 20m county outlines. Processing errors are corrected at the next daily build; see corrections. Generated 1 Oct 2026.