Boundary County's estimated 2026 population is 14,766 with a growth rate of 2.52% in the past year according to the most recent United States census data. Boundary County is the 23rd largest county in Idaho. The 2010 population was 10,998 and has seen a growth of 34.26% since that time.
Data after 2023 is projected based on recent change
The racial composition of Boundary County includes 88.78% White, and smaller percentages for other race, Asian, Native American, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.
White (88.78%)
Two or more races (4.38%)
Other race (2.76%)
Asian (1.69%)
Native American (1.59%)
Black or African American (0.74%)
Native Hawaiian or Pacific Islander (0.06%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 11,271 | 88.78% |
| Two or more races | 556 | 4.38% |
| Other race | 350 | 2.76% |
| Asian | 215 | 1.69% |
| Native American | 202 | 1.59% |
| Black or African American | 94 | 0.74% |
| Native Hawaiian or Pacific Islander | 7 | 0.06% |
Married
Widowed
Divorced
Separated
Never Married
Boundary County's average per capita income is $41,921. Household income levels show a median of $62,438. The poverty rate stands at 17.17%.
Name | Median | Mean |
|---|---|---|
| Married Families | $84,800 | - |
| Families | $73,370 | $85,193 |
| Households | $62,438 | $75,791 |
| Non Families | $28,646 | $44,737 |
Average Income
Median Household Income
Poverty Rate