Health by ZIP

Fergus County, MT health estimates

Montana. 11,772 residents, 9,316 adults (the Census population estimates that PLACES uses). 9 ZIP Codes and 7 places with estimates.

Compare with another placeZIP Codes of the county (CSV)

Fergus County in Montana. Boundaries: US Census Bureau.

The figures are model-based estimates for the adults of an area. They are not measurements. They say nothing about one person.

We do not produce estimates for individuals; only aggregated results for counties, places, census tracts, or ZCTAs.

First, it is not adequate to simply compare point estimates. The confidence intervals should also be considered, and some are very broad.

Centers for Disease Control and Prevention, PLACES Frequently Asked Questions (page dated 11 Dec 2025, read on 2 Oct 2026)

PLACES 2025 release. Survey years (BRFSS): 2022 and 2023. CDC updated the data on . What an estimate is. How to read an interval. The site gives no medical advice.

CDC estimates that 31.2% of the adults of Fergus County, MT have obesity.

The 95% confidence interval is 25.6% to 38.3%.

PLACES 2025, BRFSS 2023.

Report card: 40 measures by CDC category

Crude prevalence is the estimated share of all adults. Age-adjusted prevalence uses the 2000 US standard population, so that areas with different ages can be compared. CDC: Age-adjusted estimates are only available at the county and place-level.

"Higher" or "lower": the two 95% confidence intervals do not overlap. "Similar": they overlap. Against the state figure, which has no interval, the words are "above", "below" and "in line".

Health outcomes: Fergus County, MT
MeasureEstimate and interval on a scale of 0 to 50%Estimate95% intervalMT figure (site aggregate)United States
All teeth lost among adults aged ≥65 yearsBRFSS 202214.5%11.6 to 17.412.3%in line12.2%similar15.1%12.1 to 18.012.5%in line12.6%similar
Arthritis among adultsBRFSS 202330.9%27.7 to 34.428.4%in line25.4%higherinterval 25.1 to 25.623.5%20.9 to 26.524.2%in line21.9%similar
Cancer (non-skin) or melanoma among adultsBRFSS 202310.7%9.6 to 11.99.3%above7.9%higherinterval 7.8 to 8.17.5%6.7 to 8.37.5%in line6.6%similar
Chronic obstructive pulmonary disease among adultsBRFSS 20238.5%7.0 to 10.07.0%in line6.2%higherinterval 6.1 to 6.36.5%5.4 to 7.75.9%in line5.3%similar
Coronary heart disease among adultsBRFSS 20238.0%7.0 to 9.16.6%above6.4%higherinterval 6.2 to 6.55.5%4.8 to 6.25.2%in line5.3%similar
Current asthma among adultsBRFSS 202311.1%9.8 to 12.511.1%in line9.8%similar11.3%10.1 to 12.811.2%in line9.8%higherinterval 9.6 to 10.0
Depression among adultsBRFSS 202323.1%20.0 to 26.924.9%in line20.2%similar25.1%21.7 to 29.125.9%in line20.7%higherinterval 20.4 to 21.0
Diagnosed diabetes among adultsBRFSS 202311.4%9.7 to 13.39.9%in line12.0%similar8.4%7.2 to 9.88.3%in line10.3%lowerinterval 10.1 to 10.5
High blood pressure among adultsBRFSS 202337.3%33.5 to 41.531.9%above34.4%similar29.7%26.4 to 33.627.8%in line30.7%similar
High cholesterol among adults who have ever been screenedBRFSS 202334.6%30.8 to 39.032.8%in line37.4%similar26.9%23.6 to 30.827.6%in line32.2%lowerinterval 31.9 to 32.6
Obesity among adultsBRFSS 202331.2%25.6 to 38.331.4%in line32.8%similar31.2%25.4 to 38.431.6%in line32.9%similar
Stroke among adultsBRFSS 20234.2%3.6 to 4.83.5%above3.4%higherinterval 3.3 to 3.53.0%2.7 to 3.42.9%in line2.9%similar
Prevention: Fergus County, MT
MeasureEstimate and interval on a scale of 0 to 90%Estimate95% intervalMT figure (site aggregate)United States
Cholesterol screening among adultsBRFSS 202383.9%81.4 to 86.382.5%in line87.5%lowerinterval 87.3 to 87.879.2%75.9 to 82.380.2%in line85.6%lowerinterval 85.3 to 85.8
Colorectal cancer screening among adults aged 45–75 yearsBRFSS 202265.9%60.7 to 70.763.8%in line66.3%similar57.8%52.4 to 62.857.3%in line54.1%similar
Current lack of health insurance among adults aged 18-64 yearsBRFSS 20239.4%7.1 to 12.19.3%in line11.0%similar9.8%7.5 to 12.89.6%in line11.5%similar
Mammography use among women aged 50-74 yearsBRFSS 202276.5%68.6 to 83.074.8%in line76.5%similar74.5%66.3 to 81.473.8%in line76.0%similar
Taking medicine to control high blood pressure among adults with high blood pressureBRFSS 202376.6%73.4 to 79.673.4%in line77.0%similar52.4%48.0 to 57.151.8%in line57.5%similar
Visited dentist or dental clinic in the past year among adultsBRFSS 202263.6%59.7 to 67.263.3%in line63.9%similar63.7%59.8 to 67.362.7%in line63.4%similar
Visits to doctor for routine checkup within the past year among adultsBRFSS 202373.8%69.9 to 77.772.4%in line77.7%similar68.9%64.5 to 73.369.7%in line75.7%lowerinterval 75.4 to 76.0
Health risk behaviors: Fergus County, MT
MeasureEstimate and interval on a scale of 0 to 40%Estimate95% intervalMT figure (site aggregate)United States
Binge drinking among adultsBRFSS 202318.7%15.7 to 22.320.3%in line15.2%higherinterval 15.0 to 15.522.5%19.0 to 26.722.5%in line16.6%higherinterval 16.3 to 16.9
Current cigarette smoking among adultsBRFSS 202314.6%11.7 to 17.613.6%in line11.4%higherinterval 11.2 to 11.615.1%12.2 to 18.414.1%in line11.6%higherinterval 11.4 to 11.9
No leisure-time physical activity among adultsBRFSS 202323.8%19.4 to 28.520.6%in line24.5%similar21.7%17.7 to 26.419.6%in line23.7%similar
Short sleep duration among adultsBRFSS 202229.0%23.5 to 35.031.4%in line36.0%lowerinterval 35.7 to 36.330.2%24.5 to 36.432.4%in line36.8%lowerinterval 36.5 to 37.2
Disability: Fergus County, MT
MeasureEstimate and interval on a scale of 0 to 40%Estimate95% intervalMT figure (site aggregate)United States
Any disability among adultsBRFSS 202332.9%28.2 to 37.630.9%in line30.0%similar29.7%25.4 to 34.529.2%in line28.3%similar
Cognitive disability among adultsBRFSS 202314.2%12.1 to 16.514.3%in line13.7%similar15.6%13.1 to 18.315.0%in line14.1%similar
Hearing disability among adultsBRFSS 202310.2%9.0 to 11.68.6%above6.7%higherinterval 6.6 to 6.97.5%6.6 to 8.57.2%in line5.8%higherinterval 5.7 to 6.0
Independent living disability among adultsBRFSS 20238.6%7.3 to 9.98.0%in line7.9%similar8.3%7.0 to 9.77.8%in line7.6%similar
Mobility disability among adultsBRFSS 202315.1%12.6 to 17.812.9%in line13.5%similar11.5%9.5 to 13.410.9%in line11.7%similar
Self-care disability among adultsBRFSS 20234.0%3.4 to 4.73.5%in line3.8%similar3.4%2.9 to 4.03.2%in line3.4%similar
Vision disability among adultsBRFSS 20235.0%4.3 to 5.84.6%in line5.5%similar4.4%3.8 to 5.14.3%in line5.2%similar
Health status: Fergus County, MT
MeasureEstimate and interval on a scale of 0 to 30%Estimate95% intervalMT figure (site aggregate)United States
Fair or poor self-rated health status among adultsBRFSS 202319.5%16.3 to 22.718.3%in line19.2%similar17.6%14.7 to 20.817.4%in line18.3%similar
Frequent mental distress among adultsBRFSS 202316.4%14.3 to 18.617.2%in line15.6%similar18.7%16.2 to 21.318.5%in line16.3%similar
Frequent physical distress among adultsBRFSS 202315.1%13.0 to 17.214.0%in line12.8%similar13.5%11.7 to 15.413.1%in line12.1%similar

ZIP Codes in Fergus County

ZIP Codes in Fergus County, MT, in ZIP Code order
ZIP CodeResidentsEstimate95% confidence intervalAgainst Fergus County
ZIP Code 5903249129.2%23.5 to 35.2similar
ZIP Code 594249029.0%23.1 to 35.1similar
ZIP Code 5943039330.3%24.4 to 36.6similar
ZIP Code 594419230.0%23.6 to 36.8similar
ZIP Code 5945123031.1%24.9 to 37.9similar
ZIP Code 594578,89431.5%25.3 to 38.0similar
ZIP Code 5946460729.4%23.5 to 35.8similar
ZIP Code 5947125330.7%24.5 to 37.5similar
ZIP Code 5948935730.0%23.8 to 36.5similar

The dashed line in each drawing is Fergus County. The words are "higher" or "lower" when the two 95% confidence intervals do not overlap, and "similar" when they overlap. The table is in name order. The intervals of many rows overlap, so the table gives no rank.

A ZIP Code is in the county that holds the largest share of its land. A ZIP Code that is in two counties shows one time. Download the ZIP Codes of Fergus County as a CSV file, with all measures.

Cities and places in Fergus County

Places in Fergus County, MT, in name order
PlaceResidentsEstimate95% confidence intervalAgainst Fergus County
Denton20529.2%22.9 to 35.9similar
Grass Range11028.5%22.4 to 35.1similar
Lewistown5,95231.9%25.6 to 38.7similar
Lewistown Heights36433.1%26.5 to 40.1similar
Moore19429.5%23.3 to 36.2similar
Roy9631.0%24.5 to 37.6similar
Winifred17229.7%23.6 to 36.3similar

The dashed line in each drawing is Fergus County. The words are "higher" or "lower" when the two 95% confidence intervals do not overlap, and "similar" when they overlap. The table is in name order. The intervals of many rows overlap, so the table gives no rank.

Estimates in earlier PLACES releases

The current modeling procedure does not support using the estimates to track changes at the local level over time.

Centers for Disease Control and Prevention, PLACES Frequently Asked Questions (page dated 11 Dec 2025, read on 2 Oct 2026)

The table lists what each PLACES release published for Fergus County, MT, for 12 of the 40 measures.

Fergus County, MT: crude prevalence and 95% confidence interval in each PLACES release
Measure2022 release2023 release2024 release2025 release
COPD7.9%6.6 to 9.27.9%6.4 to 9.58.3%7.4 to 9.38.5%7.0 to 10.0
Coronary Heart Disease8.3%7.4 to 9.27.8%6.6 to 8.98.2%7.3 to 9.28.0%7.0 to 9.1
Current Asthma9.8%9.3 to 10.39.8%8.5 to 11.110.4%9.1 to 11.711.1%9.8 to 12.5
Depression21.8%20.6 to 23.121.4%17.5 to 25.221.5%18.2 to 25.123.1%20.0 to 26.9
Diabetes10.6%9.6 to 11.510.7%8.8 to 12.510.7%9.1 to 12.311.4%9.7 to 13.3
High Blood Pressure33.9%32.3 to 35.336.1%31.5 to 40.435.4%31.3 to 39.337.3%33.5 to 41.5
Obesity29.7%28.0 to 31.332.1%25.4 to 38.832.4%26.0 to 39.231.2%25.6 to 38.3
Health Insurance11.8%9.6 to 14.38.3%6.3 to 10.65.2%4.5 to 5.99.4%7.1 to 12.1
Binge Drinking18.9%18.1 to 19.719.2%15.8 to 22.619.4%15.9 to 23.218.7%15.7 to 22.3
Current Cigarette Smoking15.8%13.2 to 18.516.4%13.0 to 20.114.8%12.8 to 16.814.6%11.7 to 17.6
Physical Inactivity22.2%19.5 to 24.824.0%19.3 to 29.025.5%21.6 to 29.723.8%19.4 to 28.5
General Health13.6%11.6 to 15.815.5%12.8 to 18.317.6%15.6 to 19.719.5%16.3 to 22.7

Official sources

The links open the pages of the agencies in a new tab.

Cite this page

Health by ZIP. Fergus County, MT: CDC PLACES estimates, 2025 release. Source: Centers for Disease Control and Prevention, PLACES: Local Data for Better Health. CDC updated the data on 4 Dec 2025. https://healthbyzip.com/county/mt/fergus-county/

The address of this page stays the same. CDC's own citation is at the foot of the page.

Where the figures come from

Source: Centers for Disease Control and Prevention, PLACES: Local Data for Better Health, 2025 release. CDC updated the data on . The page shows the 2022, 2023, 2024 releases as a record. The data are a US government work in the public domain. Data set on data.cdc.gov. The boundaries and the links between ZIP Codes, counties and places come from the US Census Bureau. Percentages have one decimal, as CDC publishes them. A state figure is a site aggregate: the site computes it. The site corrects an error of its own processing at the next build. See corrections.

Questions about Fergus County, MT

How does the obesity estimate of Fergus County, MT compare with Montana?

The Montana figure is 31.4% (site aggregate).

It has no confidence interval.

The Montana figure is inside the interval of Fergus County, MT. The estimate is in line with it.

How does the obesity estimate of Fergus County, MT compare with the nation?

The US estimate is 32.8%.

The 95% confidence interval is 32.4% to 33.1%.

The two intervals overlap. The estimate for Fergus County, MT is similar.

What does CDC estimate for diagnosed diabetes in Fergus County, MT?

CDC estimates that 11.4% of the adults of Fergus County, MT have diagnosed diabetes.

The 95% confidence interval is 9.7% to 13.3%.

PLACES 2025, BRFSS 2023.

For how many measures is Fergus County, MT above or below the Montana figure?

Fergus County, MT and the Montana figure both have a value for 40 measures.

The estimate for Fergus County, MT is above the Montana figure for 5 measures.

It is below the Montana figure for 0 measures.

It is in line with the Montana figure for 35 measures.