Data / Rankings / Diagnosed diabetes in adults, local model estimate / Counties in Maryland

Counties in Maryland by diagnosed diabetes in adults, local model estimate, 2023

Dorchester County had the highest diagnosed diabetes in adults, local model estimate of 24 counties in 2023, at 16.6%. Carroll County had the lowest, at 10.3%. The median was 13.1%. Source: the Centers for Disease Control and Prevention.

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Highest16.6Dorchester County
Lowest10.3Carroll County
Median13.124 counties

Map of counties, 2023

Allegany County: 13.3 %Anne Arundel County: 10.4 %Baltimore County: 13.1 %Calvert County: 10.9 %Caroline County: 14.2 %Carroll County: 10.3 %Cecil County: 13.2 %Charles County: 13.4 %Dorchester County: 16.6 %Frederick County: 10.6 %Garrett County: 14.1 %Harford County: 11.6 %Howard County: 10.4 %Kent County: 13.7 %Montgomery County: 10.8 %Prince George's County: 15.2 %Queen Anne's County: 11.6 %St. Mary's County: 11.4 %Somerset County: 14.2 %Talbot County: 13.1 %Washington County: 13.3 %Wicomico County: 12.6 %Worcester County: 13.7 %Baltimore city: 14.4 %
  • Under 11
  • 11 to 13
  • 13 to 14
  • 14 and over
%, 2023. Source: CDC, PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2023

Dorchester County: 16.6 %Dorchester County16.6Prince George's County: 15.2 %Prince George's County15.2Baltimore city: 14.4 %Baltimore city14.4Caroline County: 14.2 %Caroline County14.2Somerset County: 14.2 %Somerset County14.2Garrett County: 14.1 %Garrett County14.1Kent County: 13.7 %Kent County13.7Worcester County: 13.7 %Worcester County13.7Charles County: 13.4 %Charles County13.4Allegany County: 13.3 %Allegany County13.3Washington County: 13.3 %Washington County13.3Cecil County: 13.2 %Cecil County13.2Baltimore County: 13.1 %Baltimore County13.1Talbot County: 13.1 %Talbot County13.1Wicomico County: 12.6 %Wicomico County12.6Harford County: 11.6 %Harford County11.6Queen Anne's County: 11.6 %Queen Anne's County11.6St. Mary's County: 11.4 %St. Mary's County11.4Calvert County: 10.9 %Calvert County10.9Montgomery County: 10.8 %Montgomery County10.8Frederick County: 10.6 %Frederick County10.6Anne Arundel County: 10.4 %Anne Arundel County10.4Howard County: 10.4 %Howard County10.4Carroll County: 10.3 %Carroll County10.3Dorchester County: 16.6 %Dorchester County16.6Prince George's County: 15.2 %Prince George's County15.2Baltimore city: 14.4 %Baltimore city14.4Caroline County: 14.2 %Caroline County14.2Somerset County: 14.2 %Somerset County14.2Garrett County: 14.1 %Garrett County14.1Kent County: 13.7 %Kent County13.7Worcester County: 13.7 %Worcester County13.7Charles County: 13.4 %Charles County13.4Allegany County: 13.3 %Allegany County13.3Washington County: 13.3 %Washington County13.3Cecil County: 13.2 %Cecil County13.2Baltimore County: 13.1 %Baltimore County13.1Talbot County: 13.1 %Talbot County13.1Wicomico County: 12.6 %Wicomico County12.6Harford County: 11.6 %Harford County11.6Queen Anne's County: 11.6 %Queen Anne's County11.6St. Mary's County: 11.4 %St. Mary's County11.4Calvert County: 10.9 %Calvert County10.9Montgomery County: 10.8 %Montgomery County10.8Frederick County: 10.6 %Frederick County10.6Anne Arundel County: 10.4 %Anne Arundel County10.4Howard County: 10.4 %Howard County10.4Carroll County: 10.3 %Carroll County10.3
%. Source: CDC, PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1Dorchester County16.6+1.2 pts
2Prince George's County15.2+0.7 pts
3Baltimore city14.4+0.1 pts
4Caroline County14.2+0.2 pts
4Somerset County14.2-0.4 pts
6Garrett County14.1+0.4 pts
7Kent County13.7+0.9 pts
7Worcester County13.7-0.6 pts
9Charles County13.4+0.2 pts
10Allegany County13.3-0.4 pts
10Washington County13.3+0.4 pts
12Cecil County13.2+0.4 pts
13Baltimore County13.1+0.7 pts
13Talbot County13.10 pts
15Wicomico County12.6-0.4 pts
16Harford County11.6+0.8 pts
16Queen Anne's County11.6+0.6 pts
18St. Mary's County11.4-0.5 pts
19Calvert County10.9-0.1 pts
20Montgomery County10.8+0.2 pts
21Frederick County10.6-0.6 pts
22Anne Arundel County10.4+0.6 pts
22Howard County10.4+0.4 pts
24Carroll County10.3-0.1 pts

Other periods

About this ranking

Percentage of adults who report being told by a doctor or other health professional that they have diabetes, other than diabetes only during pregnancy. 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 2022; its eight former counties are not served. City values for 2021 come from the 2023 release, built on 2010 Census place boundaries; later years use 2020 boundaries.

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, h3ej-a9ec and later releases), diagnosed diabetes 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, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence (Counties in Maryland by diagnosed diabetes 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, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence, Counties in Maryland by diagnosed diabetes 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-diabetes-rate-county-estimate/maryland-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, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence. Counties in Maryland by diagnosed diabetes 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-diabetes-rate-county-estimate/maryland-counties.

Harvard

Centers for Disease Control and Prevention (2025) PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence, Counties in Maryland by diagnosed diabetes in adults, local model estimate, 2023 [Dataset]. Available at: https://www.cdc.gov/places/, via Invokely: https://invokely.ai/rankings/adult-diabetes-rate-county-estimate/maryland-counties (Accessed: 12 October 2026).

BibTeX
@misc{centers_counties_in_maryland_by_2023,
  author = {{Centers for Disease Control and Prevention}},
  title = {{PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence: Counties in Maryland by diagnosed diabetes 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-diabetes-rate-county-estimate/maryland-counties. Publisher attribution: Centers for Disease Control and Prevention (CDC). PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), diagnosed diabetes 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, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence: Counties in Maryland by diagnosed diabetes 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-diabetes-rate-county-estimate/maryland-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/adult-diabetes-rate-county-estimate/maryland-counties.
N1  - Publisher attribution: Centers for Disease Control and Prevention (CDC). PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), diagnosed diabetes 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 diagnosed diabetes in adults, local model estimate?

Dorchester County, with 16.6% in 2023, according to the Centers for Disease Control and Prevention.

Which county has the lowest diagnosed diabetes in adults, local model estimate?

Carroll County, with 10.3% 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, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence. Retrieved 2026-10-12.

Diagnosed diabetes in adults, local model estimate: other rankings

Counties in Maryland: more rankings