How many people live in Carter County, MT?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 1,400 people living in Carter County, MT. That makes Carter County the 50th-most populous county in Montana. It is home to 0.12% of people living in the state.
1.4K
population of Carter County, MT (2024)
0.12%
County share of the Montana population (2024)
About 1,400 people lived in Carter County, MT in 2024.
Population estimates, 2000–2024
What are Carter County, MT’s age demographics?
About 405 Carter County, MT residents are aged 65 and older in 2024. That represents 28.9% of its population. For comparison, the age group represents 21.1% of Montana’s population and 18% in the US overall.
Another 301 Carter County residents, or 21.5% of the population, were children under 18. For comparison, the age group represents 20.5% of Montana’s population and 21.6% in the US overall.
A higher share of Carter County, MT's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are Carter County, MT’s racial and ethnic demographics?
Non-Hispanic white residents make up 94.1% of the Carter County, MT population, higher than the national share of 57.5%. Carter County, MT also has a larger share of people identifying as non-Hispanic two or more races (3%) than the US overall (2.5%).
In contrast, Carter County’s Hispanic population accounts for 1.4%, below the 20% nationwide, and the non-Hispanic Black or African American population makes up 0.29% of the county, compared with 12.6% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Carter County, MT has a higher share of a non-Hispanic white population than Montana as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Carter County, MT is Ekalaka with about 405 residents in 2024.
Cities and towns in Carter County, MT ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Ekalaka | 405 |
| 2. | Balance of Carter County | 994 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
