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Plan My Home MoveTreasure Valley area guide
Canyon County's largest city on the south side of the valley.
Canyon County · About 20 miles southwest of downtown Boise, just off I-84.
Nampa sits south of the Boise River in Canyon County, with its own downtown, its own job base, and a more working-class feel than the Ada County cities. It gives buyers more house for the money and puts Mountain Home, the Oregon line, and the western valleys on the same highway.
Canyon County population
235,006
2-bedroom rent standard (FY2026)
$1,655/mo
Sales tax on a home purchase
6%
The rent standard is the figure federal housing programs use for Boise City, ID HUD Metro FMR Area, which covers Ada, Canyon, Boise and Owyhee counties; private landlords set their own rents. City-level population, income, and home-value figures for Nampa are published by the U.S. Census Bureau on Census QuickFacts for Nampa. Property taxes are set locally, so we ask for the actual tax bill rather than publishing an average — the calculators below use your own numbers.
Use these directly rather than a search result — they are the sources for anything we did not publish here.
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Discuss Commercial Real EstateCanyon County has generally been the more affordable side of the valley, but the difference varies by neighborhood and home size. Check the Canyon County Assessor for the specific property and run your own numbers through the cost of living calculator.
It has a real job base of its own — distribution, healthcare, manufacturing, and the college — alongside people who commute into Ada County. If your work is in Boise, weigh the I-84 commute at your actual travel time.
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This guide is general information for planning a move — not tax, legal, or school-enrollment advice. Figures come from the official sources listed on this page; confirm details for a specific address before you decide. Data last reviewed 2026-10-28.