Data / Rankings / High blood pressure in adults, local model estimate / Counties in California

Counties in California by high blood pressure in adults, local model estimate, 2023

Trinity County had the highest high blood pressure in adults, local model estimate of 58 counties in 2023, at 43.7%. Yolo County had the lowest, at 26%. The median was 32.4%. Source: the Centers for Disease Control and Prevention.

Highest43.7Trinity County
Lowest26Yolo County
Median32.458 counties

All counties, 2023

Trinity County: 43.7 %Trinity County43.7Sierra County: 42.8 %Sierra County42.8Modoc County: 41.3 %Modoc County41.3Plumas County: 40.4 %Plumas County40.4Lake County: 39.6 %Lake County39.6Siskiyou County: 39.4 %Siskiyou County39.4Mariposa County: 39 %Mariposa County39Mendocino County: 38.5 %Mendocino County38.5Calaveras County: 37.8 %Calaveras County37.8Amador County: 37.6 %Amador County37.6Nevada County: 37.5 %Nevada County37.5Tuolumne County: 36.8 %Tuolumne County36.8Del Norte County: 36 %Del Norte County36Shasta County: 35.9 %Shasta County35.9Tehama County: 35.9 %Tehama County35.9Alpine County: 35.7 %Alpine County35.7Inyo County: 35.1 %Inyo County35.1Lassen County: 33.7 %Lassen County33.7El Dorado County: 33.6 %El Dorado County33.6Riverside County: 33.3 %Riverside County33.3Solano County: 33.3 %Solano County33.3Sutter County: 33.3 %Sutter County33.3Imperial County: 33.2 %Imperial County33.2Madera County: 33.2 %Madera County33.2Napa County: 33 %Napa County33Humboldt County: 32.9 %Humboldt County32.9Glenn County: 32.7 %Glenn County32.7Placer County: 32.7 %Placer County32.7Marin County: 32.6 %Marin County32.6Butte County: 32.2 %Butte County32.2Colusa County: 32 %Colusa County32Kern County: 32 %Kern County32Monterey County: 32 %Monterey County32San Bernardino County: 31.9 %San Bernardino County31.9San Luis Obispo County: 31.8 %San Luis Obispo County31.8Stanislaus County: 31.8 %Stanislaus County31.8Fresno County: 31.7 %Fresno County31.7Sonoma County: 31.6 %Sonoma County31.6Mono County: 31.5 %Mono County31.5Contra Costa County: 31.2 %Contra Costa County31.2Merced County: 31.2 %Merced County31.2Tulare County: 31.2 %Tulare County31.2Sacramento County: 30.9 %Sacramento County30.9Yuba County: 30.9 %Yuba County30.9Ventura County: 30.7 %Ventura County30.7Santa Cruz County: 30.5 %Santa Cruz County30.5Kings County: 30.4 %Kings County30.4San Joaquin County: 30.4 %San Joaquin County30.4Santa Barbara County: 30.4 %Santa Barbara County30.4Los Angeles County: 30.2 %Los Angeles County30.2San Benito County: 29.9 %San Benito County29.9San Mateo County: 29.2 %San Mateo County29.2Orange County: 29.1 %Orange County29.1San Diego County: 28.7 %San Diego County28.7Alameda County: 28.5 %Alameda County28.5San Francisco County: 27 %San Francisco County27Santa Clara County: 27 %Santa Clara County27Yolo County: 26 %Yolo County26
%. Source: CDC, PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh and later releases), high blood pressure in adults, crude prevalence. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)
1Trinity County43.7
2Sierra County42.8
3Modoc County41.3
4Plumas County40.4
5Lake County39.6
6Siskiyou County39.4
7Mariposa County39
8Mendocino County38.5
9Calaveras County37.8
10Amador County37.6
11Nevada County37.5
12Tuolumne County36.8
13Del Norte County36
14Shasta County35.9
14Tehama County35.9
16Alpine County35.7
17Inyo County35.1
18Lassen County33.7
19El Dorado County33.6
20Riverside County33.3
20Solano County33.3
20Sutter County33.3
23Imperial County33.2
23Madera County33.2
25Napa County33
26Humboldt County32.9
27Glenn County32.7
27Placer County32.7
29Marin County32.6
30Butte County32.2
31Colusa County32
31Kern County32
31Monterey County32
34San Bernardino County31.9
35San Luis Obispo County31.8
35Stanislaus County31.8
37Fresno County31.7
38Sonoma County31.6
39Mono County31.5
40Contra Costa County31.2
40Merced County31.2
40Tulare County31.2
43Sacramento County30.9
43Yuba County30.9
45Ventura County30.7
46Santa Cruz County30.5
47Kings County30.4
47San Joaquin County30.4
47Santa Barbara County30.4
50Los Angeles County30.2
51San Benito County29.9
52San Mateo County29.2
53Orange County29.1
54San Diego County28.7
55Alameda County28.5
56San Francisco County27
56Santa Clara County27
58Yolo County26

Other periods

About this ranking

Percentage of adults who have ever been told by a doctor, nurse or other health professional that they have high blood pressure. Model-based estimate for adults aged 18 and over from CDC PLACES. Crude prevalence, not age-adjusted.

US counties and cities (incorporated places of 10,000 or more). CDC PLACES combines Behavioral Risk Factor Surveillance System (BRFSS) answers with local population data through multilevel regression and poststratification, so a county or city value is a model estimate, not a survey count. The year is the BRFSS survey year, not the release year. CDC says the method does not support tracking change in a place over time, and each annual release can change the model, so values for different years are not strictly comparable. A state is missing in a year when its BRFSS data did not meet standards (Kentucky and Pennsylvania in 2023, Florida in 2021). Connecticut counties appear as its nine planning regions from 2021; its eight former counties are not served. The question is asked in odd years only.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

Centers for Disease Control and Prevention (CDC). PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh and later releases), high blood pressure in adults, crude prevalence. https://www.cdc.gov/places/. Retrieved 2026-10-12. These data are available free from CDC. Use does not imply endorsement by CDC, ATSDR, HHS or the United States Government.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

Centers for Disease Control and Prevention. (2025). PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh and later releases), high blood pressure in adults, crude prevalence (Counties in California by high blood pressure in adults, local model estimate, 2023) [Data set]. Retrieved October 12, 2026, from https://www.cdc.gov/places/

MLA 9

PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh and later releases), high blood pressure in adults, crude prevalence, Counties in California by high blood pressure in adults, local model estimate, 2023. Centers for Disease Control and Prevention, 4 Dec. 2025, https://www.cdc.gov/places/. Invokely, https://invokely.ai/rankings/adult-high-blood-pressure-rate-county-estimate/california-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

Centers for Disease Control and Prevention. 2025. PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh and later releases), high blood pressure in adults, crude prevalence. Counties in California by high blood pressure in adults, local model estimate, 2023. Dataset. Accessed October 12, 2026. https://www.cdc.gov/places/. Also distributed by Invokely, https://invokely.ai/rankings/adult-high-blood-pressure-rate-county-estimate/california-counties.

Harvard

Centers for Disease Control and Prevention (2025) PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh and later releases), high blood pressure in adults, crude prevalence, Counties in California by high blood pressure in adults, local model estimate, 2023 [Dataset]. Available at: https://www.cdc.gov/places/, via Invokely: https://invokely.ai/rankings/adult-high-blood-pressure-rate-county-estimate/california-counties (Accessed: 12 October 2026).

BibTeX
@misc{centers_counties_in_california_by_2023,
  author = {{Centers for Disease Control and Prevention}},
  title = {{PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh and later releases), high blood pressure in adults, crude prevalence: Counties in California by high blood pressure in adults, local model estimate, 2023}},
  year = {2025},
  howpublished = {Data set},
  url = {https://www.cdc.gov/places/},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/adult-high-blood-pressure-rate-county-estimate/california-counties. Publisher attribution: Centers for Disease Control and Prevention (CDC). PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh and later releases), high blood pressure in adults, crude prevalence. https://www.cdc.gov/places/. Retrieved 2026-10-12. These data are available free from CDC. Use does not imply endorsement by CDC, ATSDR, HHS or the United States Government.},
}
RIS
TY  - DATA
AU  - Centers for Disease Control and Prevention
TI  - PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh and later releases), high blood pressure in adults, crude prevalence: Counties in California by high blood pressure in adults, local model estimate, 2023
PY  - 2025
DA  - 2025/12/04
PB  - Centers for Disease Control and Prevention
DB  - Invokely
UR  - https://www.cdc.gov/places/
L2  - https://invokely.ai/rankings/adult-high-blood-pressure-rate-county-estimate/california-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/adult-high-blood-pressure-rate-county-estimate/california-counties.
N1  - Publisher attribution: Centers for Disease Control and Prevention (CDC). PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh and later releases), high blood pressure in adults, crude prevalence. https://www.cdc.gov/places/. Retrieved 2026-10-12. These data are available free from CDC. Use does not imply endorsement by CDC, ATSDR, HHS or the United States Government.
ER  -
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Questions

Which county has the highest high blood pressure in adults, local model estimate?

Trinity County, with 43.7% in 2023, according to the Centers for Disease Control and Prevention.

Which county has the lowest high blood pressure in adults, local model estimate?

Yolo County, with 26% in 2023.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: Centers for Disease Control and Prevention, PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh and later releases), high blood pressure in adults, crude prevalence. Retrieved 2026-10-12.

High blood pressure in adults, local model estimate: other rankings

Counties in California: more rankings