Ada County, ID Map
Official Census boundary of Ada County, Idaho (FIPS 16001). Turn on flood zones, contours, land cover and school districts, measure distances, or click any spot to inspect it.
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Ada County Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
518,935
Households
202,543
Median household income
$91,502
Median age
38.4 years
Median home value
$512,300
Median gross rent
$1,577/mo
Owner-occupied homes
70.8%
Bachelor's degree or higher
44.6%
Below poverty level
8.3%
Land area
1,052.2 sq mi
Population density
493 / sq mi