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

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

McCormick County had the highest high blood pressure in adults, local model estimate of 46 counties in 2023, at 51.5%. Charleston County had the lowest, at 32.3%. The median was 42.5%. Source: the Centers for Disease Control and Prevention.

Highest51.5McCormick County
Lowest32.3Charleston County
Median42.546 counties

All counties, 2023

McCormick County: 51.5 %McCormick County51.5Allendale County: 50.1 %Allendale County50.1Williamsburg County: 49.9 %Williamsburg County49.9Marion County: 49.6 %Marion County49.6Fairfield County: 49.1 %Fairfield County49.1Marlboro County: 49.1 %Marlboro County49.1Lee County: 48.3 %Lee County48.3Clarendon County: 48.1 %Clarendon County48.1Dillon County: 47.4 %Dillon County47.4Union County: 47.4 %Union County47.4Orangeburg County: 47.3 %Orangeburg County47.3Bamberg County: 47.1 %Bamberg County47.1Hampton County: 46.7 %Hampton County46.7Barnwell County: 45.7 %Barnwell County45.7Calhoun County: 45.3 %Calhoun County45.3Chesterfield County: 44.6 %Chesterfield County44.6Darlington County: 44.6 %Darlington County44.6Colleton County: 44.1 %Colleton County44.1Georgetown County: 44.1 %Georgetown County44.1Chester County: 43.8 %Chester County43.8Abbeville County: 43.7 %Abbeville County43.7Jasper County: 43.3 %Jasper County43.3Florence County: 42.6 %Florence County42.6Newberry County: 42.4 %Newberry County42.4Saluda County: 42.4 %Saluda County42.4Horry County: 42 %Horry County42Sumter County: 41.6 %Sumter County41.6Greenwood County: 40.8 %Greenwood County40.8Laurens County: 40.5 %Laurens County40.5Edgefield County: 40.3 %Edgefield County40.3Kershaw County: 40.1 %Kershaw County40.1Cherokee County: 39.8 %Cherokee County39.8Oconee County: 39.8 %Oconee County39.8Aiken County: 38.9 %Aiken County38.9Beaufort County: 38.2 %Beaufort County38.2Spartanburg County: 38.2 %Spartanburg County38.2Anderson County: 38 %Anderson County38Lancaster County: 37.3 %Lancaster County37.3Lexington County: 37.1 %Lexington County37.1Richland County: 36.5 %Richland County36.5Berkeley County: 36.4 %Berkeley County36.4Greenville County: 35.6 %Greenville County35.6York County: 35.5 %York County35.5Dorchester County: 35.3 %Dorchester County35.3Pickens County: 34.9 %Pickens County34.9Charleston County: 32.3 %Charleston County32.3
%. 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 (%)
1McCormick County51.5
2Allendale County50.1
3Williamsburg County49.9
4Marion County49.6
5Fairfield County49.1
5Marlboro County49.1
7Lee County48.3
8Clarendon County48.1
9Dillon County47.4
9Union County47.4
11Orangeburg County47.3
12Bamberg County47.1
13Hampton County46.7
14Barnwell County45.7
15Calhoun County45.3
16Chesterfield County44.6
16Darlington County44.6
18Colleton County44.1
18Georgetown County44.1
20Chester County43.8
21Abbeville County43.7
22Jasper County43.3
23Florence County42.6
24Newberry County42.4
24Saluda County42.4
26Horry County42
27Sumter County41.6
28Greenwood County40.8
29Laurens County40.5
30Edgefield County40.3
31Kershaw County40.1
32Cherokee County39.8
32Oconee County39.8
34Aiken County38.9
35Beaufort County38.2
35Spartanburg County38.2
37Anderson County38
38Lancaster County37.3
39Lexington County37.1
40Richland County36.5
41Berkeley County36.4
42Greenville County35.6
43York County35.5
44Dorchester County35.3
45Pickens County34.9
46Charleston County32.3

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 South Carolina 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 South Carolina 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/south-carolina-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 South Carolina 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/south-carolina-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 South Carolina 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/south-carolina-counties (Accessed: 12 October 2026).

BibTeX
@misc{centers_counties_in_south_carolina_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 South Carolina 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/south-carolina-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 South Carolina 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/south-carolina-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/adult-high-blood-pressure-rate-county-estimate/south-carolina-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?

McCormick County, with 51.5% in 2023, according to the Centers for Disease Control and Prevention.

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

Charleston County, with 32.3% 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 South Carolina: more rankings