Contra Costa County, CA health estimates

Name: ZIP Codes of Contra Costa County, CA: CDC PLACES estimates
Creator: Health by ZIP
License: https://www.usa.gov/government-works

California. 1,155,025 residents, 904,586 adults (the Census population estimates that PLACES uses). 43 ZIP Codes and 52 places with estimates.

Compare with another place ZIP Codes of the county (CSV)

Contra Costa County in California. Boundaries: US Census Bureau.

The figures are model-based estimates for the adults of an area. They are not measurements. They say nothing about one person.

We do not produce estimates for individuals; only aggregated results for counties, places, census tracts, or ZCTAs.
First, it is not adequate to simply compare point estimates. The confidence intervals should also be considered, and some are very broad.
Centers for Disease Control and Prevention, PLACES Frequently Asked Questions (page dated 11 Dec 2025, read on 2 Oct 2026)

PLACES 2025 release. Survey years (BRFSS): 2022 and 2023. CDC updated the data on 4 Dec 2025. What an estimate is. How to read an interval. The site gives no medical advice.

CDC estimates that 28.0% of the adults of Contra Costa County, CA have obesity.

The 95% confidence interval is 23.8% to 32.5%.

PLACES 2025, BRFSS 2023.

Report card: 40 measures by CDC category

Crude prevalence is the estimated share of all adults. Age-adjusted prevalence uses the 2000 US standard population, so that areas with different ages can be compared. CDC: Age-adjusted estimates are only available at the county and place-level.

95% confidence interval
estimate
California figure (site aggregate), no interval
US estimate

"Higher" or "lower": the two 95% confidence intervals do not overlap. "Similar": they overlap. Against the state figure, which has no interval, the words are "above", "below" and "in line".

Health outcomes (12)
Prevention (7)
Health risk behaviors (4)
Disability (7)
Health status (3)
Health-related social needs (7)

Health outcomes: Contra Costa County, CA
Measure	Estimate	95% interval	CA figure (site aggregate)	United States
All teeth lost among adults aged ≥65 yearsBRFSS 2022	8.2%	6.6 to 10.1	10.6%below	12.2%lowerinterval 11.8 to 12.6	8.4%	6.7 to 10.3	10.8%below	12.6%lowerinterval 12.2 to 13.0
Arthritis among adultsBRFSS 2023	21.8%	19.4 to 24.2	20.8%in line	25.4%lowerinterval 25.1 to 25.6	18.6%	16.5 to 20.7	19.0%in line	21.9%lowerinterval 21.6 to 22.1
Cancer (non-skin) or melanoma among adultsBRFSS 2023	7.0%	6.3 to 7.7	6.4%in line	7.9%lowerinterval 7.8 to 8.1	5.8%	5.3 to 6.4	5.7%in line	6.6%similar
Chronic obstructive pulmonary disease among adultsBRFSS 2023	4.7%	3.9 to 5.6	5.1%in line	6.2%lowerinterval 6.1 to 6.3	4.0%	3.4 to 4.7	4.6%in line	5.3%lowerinterval 5.2 to 5.4
Coronary heart disease among adultsBRFSS 2023	5.5%	4.8 to 6.2	5.6%in line	6.4%similar	4.5%	4.0 to 5.1	5.0%in line	5.3%lowerinterval 5.2 to 5.4
Current asthma among adultsBRFSS 2023	9.4%	8.3 to 10.4	9.3%in line	9.8%similar	9.4%	8.3 to 10.5	9.3%in line	9.8%similar
Depression among adultsBRFSS 2023	19.1%	16.5 to 21.6	20.1%in line	20.2%similar	19.7%	17.1 to 22.3	20.4%in line	20.7%similar
Diagnosed diabetes among adultsBRFSS 2023	11.3%	9.7 to 12.9	11.7%in line	12.0%similar	9.6%	8.3 to 11.0	10.7%in line	10.3%similar
High blood pressure among adultsBRFSS 2023	31.2%	28.2 to 34.3	30.5%in line	34.4%similar	27.5%	24.7 to 30.3	28.5%in line	30.7%lowerinterval 30.4 to 31.0
High cholesterol among adults who have ever been screenedBRFSS 2023	36.1%	32.8 to 39.4	35.4%in line	37.4%similar	31.4%	28.2 to 34.6	31.9%in line	32.2%similar
Obesity among adultsBRFSS 2023	28.0%	23.8 to 32.5	27.8%in line	32.8%similar	27.8%	23.5 to 32.2	27.9%in line	32.9%lowerinterval 32.5 to 33.2
Stroke among adultsBRFSS 2023	3.0%	2.7 to 3.4	3.1%in line	3.4%similar	2.6%	2.3 to 2.8	2.9%below	2.9%similar

Prevention: Contra Costa County, CA
Measure	Estimate	95% interval	CA figure (site aggregate)	United States
Cholesterol screening among adultsBRFSS 2023	87.6%	85.8 to 89.2	85.4%above	87.5%similar	85.8%	83.7 to 87.6	84.5%in line	85.6%similar
Colorectal cancer screening among adults aged 45–75 yearsBRFSS 2022	64.0%	59.5 to 68.4	57.5%above	66.3%similar	59.9%	55.4 to 64.5	53.5%above	54.1%higherinterval 53.7 to 54.6
Current lack of health insurance among adults aged 18-64 yearsBRFSS 2023	7.8%	6.0 to 9.6	10.6%below	11.0%lowerinterval 10.7 to 11.3	8.1%	6.3 to 10.1	10.7%below	11.5%lowerinterval 11.2 to 11.9
Mammography use among women aged 50-74 yearsBRFSS 2022	75.9%	68.9 to 82.0	75.7%in line	76.5%similar	76.0%	69.0 to 82.0	75.3%in line	76.0%similar
Taking medicine to control high blood pressure among adults with high blood pressureBRFSS 2023	72.9%	69.7 to 75.9	71.3%in line	77.0%lowerinterval 76.5 to 77.5	52.1%	48.1 to 56.2	52.2%in line	57.5%lowerinterval 56.8 to 58.2
Visited dentist or dental clinic in the past year among adultsBRFSS 2022	67.3%	64.0 to 70.4	62.8%above	63.9%similar	66.8%	63.5 to 69.9	62.6%above	63.4%similar
Visits to doctor for routine checkup within the past year among adultsBRFSS 2023	72.7%	69.3 to 75.9	71.9%in line	77.7%lowerinterval 77.4 to 78.0	70.2%	66.7 to 73.7	70.6%in line	75.7%lowerinterval 75.4 to 76.0

Health risk behaviors: Contra Costa County, CA
Measure	Estimate	95% interval	CA figure (site aggregate)	United States
Binge drinking among adultsBRFSS 2023	15.1%	12.8 to 17.7	15.3%in line	15.2%similar	16.5%	14.0 to 19.3	16.2%in line	16.6%similar
Current cigarette smoking among adultsBRFSS 2023	9.3%	7.5 to 11.1	10.9%in line	11.4%lowerinterval 11.2 to 11.6	9.3%	7.4 to 11.1	11.0%in line	11.6%lowerinterval 11.4 to 11.9
No leisure-time physical activity among adultsBRFSS 2023	23.7%	20.0 to 27.3	24.6%in line	24.5%similar	22.7%	19.1 to 26.2	24.2%in line	23.7%similar
Short sleep duration among adultsBRFSS 2022	35.1%	30.5 to 39.8	35.1%in line	36.0%similar	35.8%	31.1 to 40.5	35.5%in line	36.8%similar

Disability: Contra Costa County, CA
Measure	Estimate	95% interval	CA figure (site aggregate)	United States
Any disability among adultsBRFSS 2023	27.0%	23.4 to 30.5	30.4%in line	30.0%similar	25.8%	22.3 to 29.1	29.5%below	28.3%similar
Cognitive disability among adultsBRFSS 2023	12.2%	10.5 to 13.9	14.6%below	13.7%similar	12.7%	10.9 to 14.5	14.9%below	14.1%similar
Hearing disability among adultsBRFSS 2023	5.8%	5.1 to 6.6	5.9%in line	6.7%similar	5.0%	4.4 to 5.6	5.4%in line	5.8%lowerinterval 5.7 to 6.0
Independent living disability among adultsBRFSS 2023	7.0%	6.0 to 8.1	8.1%in line	7.9%similar	6.9%	5.9 to 7.9	8.0%below	7.6%similar
Mobility disability among adultsBRFSS 2023	12.2%	10.4 to 14.1	13.8%in line	13.5%similar	10.5%	9.0 to 12.1	12.8%below	11.7%similar
Self-care disability among adultsBRFSS 2023	3.2%	2.8 to 3.7	3.9%below	3.8%similar	2.9%	2.5 to 3.3	3.7%below	3.4%similar
Vision disability among adultsBRFSS 2023	4.6%	4.0 to 5.1	5.6%below	5.5%lowerinterval 5.4 to 5.7	4.3%	3.8 to 4.8	5.5%below	5.2%lowerinterval 5.1 to 5.4

Health status: Contra Costa County, CA
Measure	Estimate	95% interval	CA figure (site aggregate)	United States
Fair or poor self-rated health status among adultsBRFSS 2023	18.5%	15.9 to 21.2	22.1%below	19.2%similar	17.6%	15.1 to 20.1	21.6%below	18.3%similar
Frequent mental distress among adultsBRFSS 2023	15.3%	13.4 to 17.1	16.4%in line	15.6%similar	16.2%	14.2 to 18.2	16.9%in line	16.3%similar
Frequent physical distress among adultsBRFSS 2023	12.1%	10.5 to 13.7	13.4%in line	12.8%similar	11.3%	9.8 to 12.8	13.0%below	12.1%similar

Health-related social needs: Contra Costa County, CA
Measure	Estimate	95% interval	CA figure (site aggregate)	United States
Food insecurity in the past 12 months among adultsBRFSS 2023	13.2%	10.9 to 15.7	17.9%below	14.7%similar	13.8%	11.4 to 16.6	18.3%below	15.6%similar
Housing insecurity in the past 12 months among adultsBRFSS 2023	11.5%	9.7 to 13.6	14.9%below	11.7%similar	12.4%	10.4 to 14.7	15.6%below	12.9%similar
Lack of reliable transportation in the past 12 months among adultsBRFSS 2023	7.5%	6.4 to 8.7	9.3%below	7.7%similar	7.9%	6.8 to 9.3	9.5%below	8.3%similar
Lack of social and emotional support among adultsBRFSS 2023	25.3%	22.0 to 28.8	28.6%in line	23.3%similar	26.0%	22.6 to 29.6	28.9%in line	24.1%similar
Loneliness among adultsBRFSS 2023	35.0%	30.8 to 39.3	37.3%in line	32.0%similar	36.3%	32.0 to 40.6	37.8%in line	33.2%similar
Received food stamps in the past 12 months among adultsBRFSS 2023	11.1%	9.1 to 13.3	15.6%below	11.2%similar	11.5%	9.4 to 13.9	15.9%below	11.8%similar
Utility services shut-off threat in the past 12 months among adultsBRFSS 2023	5.9%	5.0 to 6.9	7.3%below	7.4%lowerinterval 7.2 to 7.6	6.3%	5.3 to 7.4	7.6%below	8.1%lowerinterval 7.9 to 8.4

ZIP Codes in Contra Costa County

Measure in the table

ZIP Codes in Contra Costa County, CA, in ZIP Code order
ZIP Code	Residents	Estimate	95% confidence interval	Against Contra Costa County
ZIP Code 94505	15,445	29.8%	25.1 to 34.5	similar
ZIP Code 94506	25,361	23.1%	19.2 to 27.0	similar
ZIP Code 94507	15,495	24.0%	19.9 to 28.3	similar
ZIP Code 94509	69,931	34.2%	29.2 to 39.4	similar
ZIP Code 94511	2,131	32.4%	27.3 to 37.5	similar
ZIP Code 94513	67,394	28.7%	24.2 to 33.4	similar
ZIP Code 94514	1,248	33.7%	28.7 to 38.8	similar
ZIP Code 94516	212	26.0%	21.5 to 30.7	similar
ZIP Code 94517	12,525	26.7%	22.2 to 31.4	similar
ZIP Code 94518	27,209	28.5%	24.0 to 33.1	similar
ZIP Code 94519	18,677	29.8%	25.2 to 34.5	similar
ZIP Code 94520	38,383	31.6%	26.7 to 36.5	similar
ZIP Code 94521	42,885	27.2%	22.8 to 31.8	similar
ZIP Code 94523	35,272	26.4%	22.2 to 30.7	similar
ZIP Code 94525	3,288	30.2%	25.5 to 35.1	similar
ZIP Code 94526	33,064	25.0%	21.0 to 29.5	similar
ZIP Code 94528	1,054	25.1%	20.9 to 30.0	similar
ZIP Code 94530	26,360	24.5%	20.5 to 28.7	similar
ZIP Code 94531	45,342	30.8%	26.1 to 35.6	similar
ZIP Code 94547	26,016	24.5%	20.5 to 28.6	similar
ZIP Code 94548	420	30.4%	25.6 to 35.4	similar
ZIP Code 94549	28,637	24.6%	20.5 to 29.1	similar
ZIP Code 94553	49,756	28.6%	24.0 to 33.2	similar
ZIP Code 94556	16,134	23.6%	19.6 to 27.8	similar
ZIP Code 94561	44,545	31.1%	26.3 to 36.0	similar
ZIP Code 94563	19,496	23.6%	19.6 to 27.8	similar
ZIP Code 94564	19,024	27.4%	23.0 to 32.0	similar
ZIP Code 94565	100,341	32.0%	27.2 to 36.8	similar
ZIP Code 94569	210	30.1%	25.2 to 35.4	similar
ZIP Code 94572	9,622	30.0%	25.5 to 34.7	similar
ZIP Code 94575	933	15.9%	12.6 to 19.7	lower
ZIP Code 94582	49,311	19.6%	16.2 to 23.1	lower
ZIP Code 94583	38,444	22.9%	19.0 to 27.0	similar
ZIP Code 94595	17,716	22.1%	18.3 to 26.1	similar
ZIP Code 94596	22,861	25.3%	21.2 to 29.7	similar
ZIP Code 94597	23,661	26.3%	22.0 to 30.8	similar
ZIP Code 94598	26,826	23.7%	19.7 to 27.9	similar
ZIP Code 94708	11,553	21.4%	18.5 to 24.8	similar
ZIP Code 94801	33,486	35.9%	30.7 to 41.1	similar
ZIP Code 94803	26,457	28.5%	24.1 to 33.1	similar
ZIP Code 94804	45,108	34.0%	29.1 to 38.8	similar
ZIP Code 94805	14,958	28.9%	24.4 to 33.5	similar
ZIP Code 94806	64,589	32.2%	27.4 to 37.1	similar

The dashed line in each drawing is Contra Costa County. The words are "higher" or "lower" when the two 95% confidence intervals do not overlap, and "similar" when they overlap. The table is in name order. The intervals of many rows overlap, so the table gives no rank.

A ZIP Code is in the county that holds the largest share of its land. A ZIP Code that is in two counties shows one time. Download the ZIP Codes of Contra Costa County as a CSV file, with all measures.

Cities and places in Contra Costa County

Measure in the table

Places in Contra Costa County, CA, in name order
Place	Residents	Estimate	95% confidence interval	Against Contra Costa County
Acalanes Ridge	1,285	25.0%	20.7 to 29.3	similar
Alamo	15,314	24.0%	19.9 to 28.3	similar
Alhambra Valley	805	28.4%	23.8 to 33.1	similar
Antioch	115,291	32.9%	28.0 to 37.9	similar
Bay Point	23,896	33.9%	29.0 to 39.0	similar
Bayview	1,782	29.3%	24.8 to 34.0	similar
Bethel Island	2,131	32.4%	27.3 to 37.5	similar
Blackhawk	9,637	23.9%	19.8 to 28.0	similar
Brentwood	64,292	28.6%	24.1 to 33.3	similar
Byron	1,140	34.2%	29.0 to 39.3	similar
Camino Tassajara	4,951	19.9%	16.3 to 23.4	lower
Castle Hill	1,271	25.2%	21.1 to 29.6	similar
Clayton	11,070	26.3%	21.9 to 31.0	similar
Clyde	729	31.5%	26.5 to 36.6	similar
Concord	125,410	29.1%	24.5 to 33.9	similar
Contra Costa Centre	6,808	25.2%	21.1 to 29.6	similar
Crockett	3,242	30.2%	25.5 to 35.1	similar
Danville	43,582	24.6%	20.6 to 29.0	similar
Diablo	1,255	25.5%	21.1 to 30.1	similar
Discovery Bay	15,358	29.8%	25.1 to 34.6	similar
East Richmond Heights	3,460	26.8%	22.6 to 31.4	similar
El Cerrito	25,962	24.4%	20.5 to 28.6	similar
El Sobrante	15,524	29.2%	24.7 to 33.8	similar
Hercules	26,016	24.5%	20.5 to 28.6	similar
Kensington	5,428	23.7%	19.6 to 28.1	similar
Knightsen	1,596	31.6%	26.7 to 36.7	similar
Lafayette	25,391	24.6%	20.5 to 29.0	similar
Martinez	37,287	28.2%	23.7 to 32.9	similar
Montalvin Manor	3,099	32.4%	27.5 to 37.4	similar
Moraga	16,870	23.1%	19.1 to 27.2	similar
Mountain View	2,622	29.4%	24.8 to 34.1	similar
North Gate	667	23.9%	19.8 to 28.2	similar
North Richmond	4,175	36.1%	30.9 to 41.5	similar
Oakley	43,357	31.0%	26.2 to 35.9	similar
Orinda	19,514	23.6%	19.6 to 27.8	similar
Pacheco	4,183	29.8%	25.0 to 34.6	similar
Pinole	19,022	27.4%	23.0 to 32.0	similar
Pittsburg	76,416	31.4%	26.7 to 36.1	similar
Pleasant Hill	34,613	26.5%	22.2 to 30.8	similar
Port Costa	190	30.2%	25.3 to 35.7	similar
Reliez Valley	3,354	24.7%	20.7 to 29.2	similar
Richmond	116,448	32.9%	28.0 to 37.8	similar
Rodeo	9,653	30.0%	25.5 to 34.7	similar
Rollingwood	3,015	31.7%	26.8 to 36.6	similar
San Miguel	3,591	25.5%	21.2 to 30.1	similar
San Pablo	32,127	33.4%	28.4 to 38.4	similar
San Ramon	84,605	21.1%	17.6 to 25.0	similar
Saranap	5,830	25.2%	20.9 to 29.5	similar
Shell Ridge	1,014	26.1%	21.9 to 30.7	similar
Tara Hills	5,364	28.9%	24.4 to 33.6	similar
Vine Hill	4,323	29.5%	24.8 to 34.3	similar
Walnut Creek	70,127	24.2%	20.1 to 28.4	similar

Estimates in earlier PLACES releases

The current modeling procedure does not support using the estimates to track changes at the local level over time.
Centers for Disease Control and Prevention, PLACES Frequently Asked Questions (page dated 11 Dec 2025, read on 2 Oct 2026)

The table lists what each PLACES release published for Contra Costa County, CA, for 12 of the 40 measures.

Contra Costa County, CA: crude prevalence and 95% confidence interval in each PLACES release
Measure	2022 release	2023 release	2024 release	2025 release
COPD	5.2%4.5 to 6.0	4.9%4.0 to 5.9	5.5%4.9 to 6.1	4.7%3.9 to 5.6
Coronary Heart Disease	5.5%5.1 to 6.0	5.1%4.5 to 5.8	6.0%5.3 to 6.6	5.5%4.8 to 6.2
Current Asthma	9.2%8.9 to 9.6	9.0%7.8 to 10.2	9.5%8.3 to 10.7	9.4%8.3 to 10.4
Depression	15.4%14.7 to 16.1	15.9%13.2 to 18.8	17.7%15.2 to 20.4	19.1%16.5 to 21.6
Diabetes	10.1%9.6 to 10.7	10.5%9.0 to 12.2	11.2%9.7 to 12.8	11.3%9.7 to 12.9
High Blood Pressure	26.5%25.7 to 27.3	27.9%24.4 to 31.4	27.9%24.5 to 31.3	31.2%28.2 to 34.3
Obesity	28.3%27.3 to 29.3	24.6%19.9 to 29.6	28.6%24.0 to 33.2	28.0%23.8 to 32.5
Health Insurance	10.6%9.1 to 12.3	7.7%6.1 to 9.6	5.6%5.0 to 6.2	7.8%6.0 to 9.6
Binge Drinking	16.5%16.0 to 16.9	14.9%12.3 to 17.8	18.0%15.1 to 21.2	15.1%12.8 to 17.7
Current Cigarette Smoking	9.9%8.4 to 11.4	9.5%7.5 to 11.8	10.4%9.0 to 11.8	9.3%7.5 to 11.1
Physical Inactivity	19.5%17.6 to 21.2	18.1%14.9 to 21.7	19.4%16.6 to 22.4	23.7%20.0 to 27.3
General Health	13.0%11.6 to 14.4	14.4%12.3 to 16.8	16.5%14.8 to 18.3	18.5%15.9 to 21.2

Official sources

PLACES: Local Data for Better HealthCenters for Disease Control and Prevention. The PLACES project of CDC. Checked 2 Oct 2026.
PLACES Data PortalCenters for Disease Control and Prevention. CDC page about the data portal and the data sets. Checked 2 Oct 2026.
PLACES county data, 2025 releaseCenters for Disease Control and Prevention. The data set of CDC for this kind of area. Checked 2 Oct 2026.
California Department of Public HealthThe health department of the state. Checked 1 Oct 2026.

The links open the pages of the agencies in a new tab.

Cite this page

Health by ZIP. Contra Costa County, CA: CDC PLACES estimates, 2025 release. Source: Centers for Disease Control and Prevention, PLACES: Local Data for Better Health. CDC updated the data on 4 Dec 2025. https://healthbyzip.com/county/ca/contra-costa-county/

The address of this page stays the same. CDC's own citation is at the foot of the page.

Where the figures come from

Source: Centers for Disease Control and Prevention, PLACES: Local Data for Better Health, 2025 release. CDC updated the data on 4 Dec 2025. The page shows the 2022, 2023, 2024 releases as a record. The data are a US government work in the public domain. Data set on data.cdc.gov. The boundaries and the links between ZIP Codes, counties and places come from the US Census Bureau. Percentages have one decimal, as CDC publishes them. A state figure is a site aggregate: the site computes it. The site corrects an error of its own processing at the next build. See corrections.

Questions about Contra Costa County, CA

How does the obesity estimate of Contra Costa County, CA compare with California?

The California figure is 27.8% (site aggregate).

It has no confidence interval.

The California figure is inside the interval of Contra Costa County, CA. The estimate is in line with it.

How does the obesity estimate of Contra Costa County, CA compare with the nation?

The US estimate is 32.8%.

The 95% confidence interval is 32.4% to 33.1%.

The two intervals overlap. The estimate for Contra Costa County, CA is similar.

What does CDC estimate for diagnosed diabetes in Contra Costa County, CA?

CDC estimates that 11.3% of the adults of Contra Costa County, CA have diagnosed diabetes.

The 95% confidence interval is 9.7% to 12.9%.

PLACES 2025, BRFSS 2023.

For how many measures is Contra Costa County, CA above or below the California figure?

Contra Costa County, CA and the California figure both have a value for 40 measures.

The estimate for Contra Costa County, CA is above the California figure for 3 measures.

It is below the California figure for 11 measures.

It is in line with the California figure for 26 measures.