How many people live in Boundary County, ID?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 14,000 people living in Boundary County, ID. That makes Boundary County the 25th-most populous county in Idaho. It is home to 0.69% of people living in the state.
14K
population of Boundary County, ID (2024)
0.69%
County share of the Idaho population (2024)
About 14,000 people lived in Boundary County, ID in 2024.
Population estimates, 2000–2024
What are Boundary County, ID’s age demographics?
About 3,300 Boundary County residents are aged 65 and older in 2024. That represents 23.4% of its population. For comparison, the age group represents 17.7% of Idaho’s population and 18% in the US overall.
Another 3,300 Boundary County residents, or 23.2% of the population, were children under 18. For comparison, the age group represents 23.4% of Idaho’s population and 21.6% in the US overall.
A lower share of Boundary County, ID's population is aged 25–44 than the US as a whole.
Population estimates by age group, (2024)
What are Boundary County, ID’s racial and ethnic demographics?
Non-Hispanic white residents make up 86.3% of the Boundary County, ID population, higher than the national share of 57.5%. Boundary County, ID also has a larger share of people identifying as non-Hispanic American Indian and Alaska Native (1.4%) than the US overall (0.72%).
In contrast, Boundary County’s Hispanic population accounts for 6.1%, below the 20% nationwide, and the non-Hispanic Black or African American population makes up 0.65% 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.
Boundary County, ID has a higher share of a non-Hispanic white population than Idaho as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Boundary County, ID is Bonners Ferry with about 2,800 residents in 2024.
Cities and towns in Boundary County, ID ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Bonners Ferry | 2,788 |
| 2. | Moyie Springs | 1,225 |
| 3. | Balance of Boundary County | 10,027 |
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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.
