Boundary County is a county of 13,172 people in Idaho. Density works out to 10 people per square mile. The median age is 43.7, about 5 years above the US median. About 24% of adults have finished a four-year degree. Growth has run 33% since 2000, or 3,301 more people. Owners hold 75% of the housing stock.
At a glance
Lower income
median household income $67,237, below the US median
US median: $82,259
Older
median age 43.7
US median: 38.9
Less educated
24% hold a bachelor's degree
US average: 36%
Less affordable
home values up 123%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Boundary County
What changed most since 1990
Median home value (2024 dollars)$116,403 → $410,500(+253%)US over the same years: +67%
Median age32.7 → 43.7(+11.0 years)US over the same years: +6.0 years
White share93.4% → 81.5%(−11.9 pts)US over the same years: −17.8 pts
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)17.8%(204)
US avg: 26.4%
Gulf War (1990s)36%(413)
US avg: 24.3%
Vietnam era36%(413)
US avg: 33.1%
Korean War5.5%(63)
US avg: 4.5%
World War II1.2%(14)
US avg: 1%
Share of the 1,146 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Boundary County, decade by decade
Boundary County population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
8,332
$51,990
$116,403
13.3%
15.7
2000
9,871
$56,927
$184,351
14.7%
16.2
2010
10,972
$54,251
$251,174
12.9%
18.5
2020
12,056
$54,928
$284,829
18.0%
28.7
2024
13,172
$67,237
$410,500
24.0%
40.2
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
