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

Prairie County had the highest diagnosed diabetes in adults, local model estimate of 56 counties in 2023, at 16.2%. Gallatin County had the lowest, at 6.7%. The median was 11.6%. Source: the Centers for Disease Control and Prevention.

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Highest16.2Prairie County
Median11.656 counties

Map of counties, 2023

Beaverhead County: 10.5 %Big Horn County: 15.1 %Blaine County: 14.3 %Broadwater County: 10.4 %Carbon County: 11.8 %Carter County: 12.3 %Cascade County: 10.4 %Chouteau County: 12.2 %Custer County: 10.5 %Daniels County: 11.2 %Dawson County: 10.1 %Deer Lodge County: 12.9 %Fallon County: 10.2 %Fergus County: 11.4 %Flathead County: 9.3 %Gallatin County: 6.7 %Garfield County: 11.5 %Glacier County: 15.5 %Golden Valley County: 14.7 %Granite County: 12.3 %Hill County: 12.1 %Jefferson County: 10.3 %Judith Basin County: 12.9 %Lake County: 12.2 %Lewis and Clark County: 9.3 %Liberty County: 13.1 %Lincoln County: 14 %McCone County: 11.1 %Madison County: 10.6 %Meagher County: 12.5 %Mineral County: 12.8 %Missoula County: 8.3 %Musselshell County: 12.7 %Park County: 10.5 %Petroleum County: 12.4 %Phillips County: 12 %Pondera County: 13.6 %Powder River County: 11.9 %Powell County: 11.3 %Prairie County: 16.2 %Ravalli County: 10.4 %Richland County: 9.2 %Roosevelt County: 14.1 %Rosebud County: 13.6 %Sanders County: 13.7 %Sheridan County: 11.5 %Silver Bow County: 10.2 %Stillwater County: 10.8 %Sweet Grass County: 10.9 %Teton County: 11 %Toole County: 11.5 %Treasure County: 12.5 %Valley County: 11.6 %Wheatland County: 13 %Wibaux County: 11.6 %Yellowstone County: 9.5 %
  • Under 10
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  • 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

Prairie County: 16.2 %Prairie County16.2Glacier County: 15.5 %Glacier County15.5Big Horn County: 15.1 %Big Horn County15.1Golden Valley County: 14.7 %Golden Valley County14.7Blaine County: 14.3 %Blaine County14.3Roosevelt County: 14.1 %Roosevelt County14.1Lincoln County: 14 %Lincoln County14Sanders County: 13.7 %Sanders County13.7Pondera County: 13.6 %Pondera County13.6Rosebud County: 13.6 %Rosebud County13.6Liberty County: 13.1 %Liberty County13.1Wheatland County: 13 %Wheatland County13Deer Lodge County: 12.9 %Deer Lodge County12.9Judith Basin County: 12.9 %Judith Basin County12.9Mineral County: 12.8 %Mineral County12.8Musselshell County: 12.7 %Musselshell County12.7Meagher County: 12.5 %Meagher County12.5Treasure County: 12.5 %Treasure County12.5Petroleum County: 12.4 %Petroleum County12.4Carter County: 12.3 %Carter County12.3Granite County: 12.3 %Granite County12.3Chouteau County: 12.2 %Chouteau County12.2Lake County: 12.2 %Lake County12.2Hill County: 12.1 %Hill County12.1Phillips County: 12 %Phillips County12Powder River County: 11.9 %Powder River County11.9Carbon County: 11.8 %Carbon County11.8Valley County: 11.6 %Valley County11.6Wibaux County: 11.6 %Wibaux County11.6Garfield County: 11.5 %Garfield County11.5Sheridan County: 11.5 %Sheridan County11.5Toole County: 11.5 %Toole County11.5Fergus County: 11.4 %Fergus County11.4Powell County: 11.3 %Powell County11.3Daniels County: 11.2 %Daniels County11.2McCone County: 11.1 %McCone County11.1Teton County: 11 %Teton County11Sweet Grass County: 10.9 %Sweet Grass County10.9Stillwater County: 10.8 %Stillwater County10.8Madison County: 10.6 %Madison County10.6Beaverhead County: 10.5 %Beaverhead County10.5Custer County: 10.5 %Custer County10.5Park County: 10.5 %Park County10.5Broadwater County: 10.4 %Broadwater County10.4Cascade County: 10.4 %Cascade County10.4Ravalli County: 10.4 %Ravalli County10.4Jefferson County: 10.3 %Jefferson County10.3Fallon County: 10.2 %Fallon County10.2Silver Bow County: 10.2 %Silver Bow County10.2Dawson County: 10.1 %Dawson County10.1Yellowstone County: 9.5 %Yellowstone County9.5Flathead County: 9.3 %Flathead County9.3Lewis and Clark County: 9.3 %Lewis and Clark County9.3Richland County: 9.2 %Richland County9.2Missoula County: 8.3 %Missoula County8.3Gallatin County: 6.7 %Gallatin County6.7Prairie County: 16.2 %Prairie County16.2Glacier County: 15.5 %Glacier County15.5Big Horn County: 15.1 %Big Horn County15.1Golden Valley County: 14.7 %Golden Valley County14.7Blaine County: 14.3 %Blaine County14.3Roosevelt County: 14.1 %Roosevelt County14.1Lincoln County: 14 %Lincoln County14Sanders County: 13.7 %Sanders County13.7Pondera County: 13.6 %Pondera County13.6Rosebud County: 13.6 %Rosebud County13.6Liberty County: 13.1 %Liberty County13.1Wheatland County: 13 %Wheatland County13Deer Lodge County: 12.9 %Deer Lodge County12.9Judith Basin County: 12.9 %Judith Basin County12.9Mineral County: 12.8 %Mineral County12.8Musselshell County: 12.7 %Musselshell County12.7Meagher County: 12.5 %Meagher County12.5Treasure County: 12.5 %Treasure County12.5Petroleum County: 12.4 %Petroleum County12.4Carter County: 12.3 %Carter County12.3Granite County: 12.3 %Granite County12.3Chouteau County: 12.2 %Chouteau County12.2Lake County: 12.2 %Lake County12.2Hill County: 12.1 %Hill County12.1Phillips County: 12 %Phillips County12Powder River County: 11.9 %Powder River County11.9Carbon County: 11.8 %Carbon County11.8Valley County: 11.6 %Valley County11.6Wibaux County: 11.6 %Wibaux County11.6Garfield County: 11.5 %Garfield County11.5Sheridan County: 11.5 %Sheridan County11.5Toole County: 11.5 %Toole County11.5Fergus County: 11.4 %Fergus County11.4Powell County: 11.3 %Powell County11.3Daniels County: 11.2 %Daniels County11.2McCone County: 11.1 %McCone County11.1Teton County: 11 %Teton County11Sweet Grass County: 10.9 %Sweet Grass County10.9Stillwater County: 10.8 %Stillwater County10.8Madison County: 10.6 %Madison County10.6Beaverhead County: 10.5 %Beaverhead County10.5Custer County: 10.5 %Custer County10.5Park County: 10.5 %Park County10.5Broadwater County: 10.4 %Broadwater County10.4Cascade County: 10.4 %Cascade County10.4Ravalli County: 10.4 %Ravalli County10.4Jefferson County: 10.3 %Jefferson County10.3Fallon County: 10.2 %Fallon County10.2Silver Bow County: 10.2 %Silver Bow County10.2Dawson County: 10.1 %Dawson County10.1Yellowstone County: 9.5 %Yellowstone County9.5Flathead County: 9.3 %Flathead County9.3Lewis and Clark County: 9.3 %Lewis and Clark County9.3Richland County: 9.2 %Richland County9.2Missoula County: 8.3 %Missoula County8.3Gallatin County: 6.7 %Gallatin County6.7
%. 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
1Prairie County16.2-0.1 pts
2Glacier County15.5+0.5 pts
3Big Horn County15.1+1.5 pts
4Golden Valley County14.7+0.4 pts
5Blaine County14.3+1 pts
6Roosevelt County14.1+0.7 pts
7Lincoln County14+1.5 pts
8Sanders County13.7+0.4 pts
9Pondera County13.6+2.2 pts
9Rosebud County13.6+1.1 pts
11Liberty County13.1-0.2 pts
12Wheatland County13+0.6 pts
13Deer Lodge County12.9+1.8 pts
13Judith Basin County12.9+1.3 pts
15Mineral County12.8+1.1 pts
16Musselshell County12.7+1 pts
17Meagher County12.5+1.3 pts
17Treasure County12.5+0.9 pts
19Petroleum County12.4+0.6 pts
20Carter County12.3+0.4 pts
20Granite County12.3+0.4 pts
22Chouteau County12.2+0.8 pts
22Lake County12.2+0.2 pts
24Hill County12.1+1.6 pts
25Phillips County12+1.3 pts
26Powder River County11.9-0.2 pts
27Carbon County11.8+1.2 pts
28Valley County11.6+0.4 pts
28Wibaux County11.6+0.2 pts
30Garfield County11.5+0.7 pts
30Sheridan County11.5+1.3 pts
30Toole County11.5+1.6 pts
33Fergus County11.4+0.7 pts
34Powell County11.3+0.8 pts
35Daniels County11.2+0.2 pts
36McCone County11.1+1.1 pts
37Teton County11+0.8 pts
38Sweet Grass County10.9+0.5 pts
39Stillwater County10.8+1.1 pts
40Madison County10.6+0.2 pts
41Beaverhead County10.5+0.6 pts
41Custer County10.5+0.6 pts
41Park County10.5+0.8 pts
44Broadwater County10.4-1.1 pts
44Cascade County10.4+0.9 pts
44Ravalli County10.4+0.3 pts
47Jefferson County10.3+0.4 pts
48Fallon County10.2+1 pts
48Silver Bow County10.2+0.7 pts
50Dawson County10.1+0.7 pts
51Yellowstone County9.5+0.2 pts
52Flathead County9.3+0.9 pts
52Lewis and Clark County9.3+1.1 pts
54Richland County9.2-0.1 pts
55Missoula County8.3+1 pts
56Gallatin County6.7+0.5 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 Montana 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 Montana 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/montana-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 Montana 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/montana-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 Montana 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/montana-counties (Accessed: 12 October 2026).

BibTeX
@misc{centers_counties_in_montana_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 Montana 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/montana-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 Montana 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/montana-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/adult-diabetes-rate-county-estimate/montana-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?

Prairie County, with 16.2% in 2023, according to the Centers for Disease Control and Prevention.

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

Gallatin County, with 6.7% 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 Montana: more rankings