Data / Rankings / High cholesterol in screened adults, local model estimate / Counties in California

Counties in California by high cholesterol in screened adults, local model estimate

Trinity County had the highest high cholesterol in screened adults, local model estimate of 58 counties in 2021, at 40.8%. Contra Costa County had the lowest, at 30.9%. The median was 34.6%. Source: the Centers for Disease Control and Prevention.

Highest40.8Trinity County
Lowest30.9Contra Costa County
Median34.658 counties

All counties, 2021

Trinity County: 40.8 %Trinity County40.8Sierra County: 40.4 %Sierra County40.4Modoc County: 40.2 %Modoc County40.2Mariposa County: 40 %Mariposa County40Plumas County: 39.6 %Plumas County39.6Calaveras County: 39.4 %Calaveras County39.4Siskiyou County: 39.3 %Siskiyou County39.3Nevada County: 39 %Nevada County39Amador County: 38.2 %Amador County38.2Mendocino County: 38.1 %Mendocino County38.1Lake County: 37.5 %Lake County37.5El Dorado County: 37.3 %El Dorado County37.3Tehama County: 37.2 %Tehama County37.2Tuolumne County: 37.2 %Tuolumne County37.2Del Norte County: 36.8 %Del Norte County36.8Inyo County: 36.8 %Inyo County36.8Sutter County: 36.6 %Sutter County36.6Alpine County: 36.3 %Alpine County36.3Humboldt County: 36.3 %Humboldt County36.3Napa County: 36 %Napa County36Los Angeles County: 35.6 %Los Angeles County35.6Colusa County: 35.1 %Colusa County35.1Orange County: 35 %Orange County35Glenn County: 34.9 %Glenn County34.9Marin County: 34.9 %Marin County34.9Shasta County: 34.9 %Shasta County34.9Placer County: 34.8 %Placer County34.8Ventura County: 34.8 %Ventura County34.8San Joaquin County: 34.6 %San Joaquin County34.6Madera County: 34.5 %Madera County34.5Monterey County: 34.5 %Monterey County34.5San Mateo County: 34.4 %San Mateo County34.4Mono County: 34.3 %Mono County34.3Imperial County: 34.1 %Imperial County34.1Santa Cruz County: 34.1 %Santa Cruz County34.1Tulare County: 34.1 %Tulare County34.1Butte County: 33.8 %Butte County33.8Riverside County: 33.8 %Riverside County33.8Sonoma County: 33.6 %Sonoma County33.6Stanislaus County: 33.6 %Stanislaus County33.6Merced County: 33.5 %Merced County33.5Alameda County: 33.4 %Alameda County33.4Kern County: 33.4 %Kern County33.4Lassen County: 33.4 %Lassen County33.4San Luis Obispo County: 33.4 %San Luis Obispo County33.4Santa Clara County: 33.3 %Santa Clara County33.3San Bernardino County: 33.1 %San Bernardino County33.1Solano County: 33.1 %Solano County33.1Fresno County: 33 %Fresno County33San Francisco County: 32.9 %San Francisco County32.9San Diego County: 32.8 %San Diego County32.8Santa Barbara County: 32.5 %Santa Barbara County32.5Yuba County: 32.4 %Yuba County32.4Kings County: 32.2 %Kings County32.2San Benito County: 31.9 %San Benito County31.9Sacramento County: 31.5 %Sacramento County31.5Yolo County: 31.5 %Yolo County31.5Contra Costa County: 30.9 %Contra Costa County30.9
%. Source: CDC, PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh and later releases), high cholesterol in screened adults, crude prevalence. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Trinity County40.8
2Sierra County40.4
3Modoc County40.2
4Mariposa County40
5Plumas County39.6
6Calaveras County39.4
7Siskiyou County39.3
8Nevada County39
9Amador County38.2
10Mendocino County38.1
11Lake County37.5
12El Dorado County37.3
13Tehama County37.2
13Tuolumne County37.2
15Del Norte County36.8
15Inyo County36.8
17Sutter County36.6
18Alpine County36.3
18Humboldt County36.3
20Napa County36
21Los Angeles County35.6
22Colusa County35.1
23Orange County35
24Glenn County34.9
24Marin County34.9
24Shasta County34.9
27Placer County34.8
27Ventura County34.8
29San Joaquin County34.6
30Madera County34.5
30Monterey County34.5
32San Mateo County34.4
33Mono County34.3
34Imperial County34.1
34Santa Cruz County34.1
34Tulare County34.1
37Butte County33.8
37Riverside County33.8
39Sonoma County33.6
39Stanislaus County33.6
41Merced County33.5
42Alameda County33.4
42Kern County33.4
42Lassen County33.4
42San Luis Obispo County33.4
46Santa Clara County33.3
47San Bernardino County33.1
47Solano County33.1
49Fresno County33
50San Francisco County32.9
51San Diego County32.8
52Santa Barbara County32.5
53Yuba County32.4
54Kings County32.2
55San Benito County31.9
56Sacramento County31.5
56Yolo County31.5
58Contra Costa County30.9

Other periods

About this ranking

Percentage of adults who have ever had their cholesterol checked and were told by a doctor, nurse or other health professional that it was high. 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 cholesterol in screened 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 cholesterol in screened adults, crude prevalence (Counties in California by high cholesterol in screened adults, local model estimate, 2021) [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 cholesterol in screened adults, crude prevalence, Counties in California by high cholesterol in screened adults, local model estimate, 2021. Centers for Disease Control and Prevention, 4 Dec. 2025, https://www.cdc.gov/places/. Invokely, https://invokely.ai/rankings/adult-high-cholesterol-rate-county-estimate/california-counties?period=2021. 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 cholesterol in screened adults, crude prevalence. Counties in California by high cholesterol in screened adults, local model estimate, 2021. Dataset. Accessed October 12, 2026. https://www.cdc.gov/places/. Also distributed by Invokely, https://invokely.ai/rankings/adult-high-cholesterol-rate-county-estimate/california-counties?period=2021.

Harvard

Centers for Disease Control and Prevention (2025) PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh and later releases), high cholesterol in screened adults, crude prevalence, Counties in California by high cholesterol in screened adults, local model estimate, 2021 [Dataset]. Available at: https://www.cdc.gov/places/, via Invokely: https://invokely.ai/rankings/adult-high-cholesterol-rate-county-estimate/california-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{centers_counties_in_california_by_2021,
  author = {{Centers for Disease Control and Prevention}},
  title = {{PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh and later releases), high cholesterol in screened adults, crude prevalence: Counties in California by high cholesterol in screened adults, local model estimate, 2021}},
  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-cholesterol-rate-county-estimate/california-counties?period=2021. 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 cholesterol in screened 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 cholesterol in screened adults, crude prevalence: Counties in California by high cholesterol in screened adults, local model estimate, 2021
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-cholesterol-rate-county-estimate/california-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/adult-high-cholesterol-rate-county-estimate/california-counties?period=2021.
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 cholesterol in screened 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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Rank Counties in California by high cholesterol in screened adults, local model estimate using official data, and cite the source.
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Questions

Which county has the highest high cholesterol in screened adults, local model estimate?

Trinity County, with 40.8% in 2021, according to the Centers for Disease Control and Prevention.

Which county has the lowest high cholesterol in screened adults, local model estimate?

Contra Costa County, with 30.9% in 2021.

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 cholesterol in screened adults, crude prevalence. Retrieved 2026-10-12.

High cholesterol in screened adults, local model estimate: other rankings

Counties in California: more rankings