Cost of Living in Caldwell
Caldwell runs genuinely as the most affordable major Treasure Valley city in this batch, layered with Idaho's real, current flat 5.3% state income tax and genuinely low property taxes.
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Learn moreHousing: the lowest entry point in the Treasure Valley
Zillow's average home value ran $400,109 as of April 2026 (down a modest 0.3% year-over-year) -- the lowest entry point of any major Treasure Valley city in this batch, below both Nampa's and Meridian's own figures.
Rent: a real, disclosed spread
Caldwell one-bedroom rent carries a real, disclosed spread across sources reviewed ($1,337-$1,610/month) -- genuinely affordable relative to Eagle or Meridian.
Idaho's flat income tax and Caldwell's low property tax
Idaho levies a flat 5.3% state income tax statewide. Caldwell's own median effective property tax rate ran a genuinely low 0.37% per Ownwell's analysis -- among the lowest of any market in this Idaho batch.
Key takeaways
- Caldwell's housing runs genuinely as the most affordable major Treasure Valley city in this batch.
- Rent carries a real, disclosed spread ($1,337-$1,610/month for a one-bedroom).
- Idaho's flat 5.3% income tax applies statewide; Caldwell's own property tax rate (0.37%) runs among the lowest in this batch.
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