2022 CSA (combined statistical area) census estimates:
Boise/Mountain Home/Ontario
899,574
(Ada, Boise, Canyon, Gem, Owyhee, Elmore, Payette, Malheur OR)
Spokane/Spokane Valley/Coeur d'Alene
781,497
(Kootenai, Spokane WA, Stevens WA)
Idaho Falls/Rexburg/Blackfoot
284,485
(Bingham, Bonneville, Butte, Jefferson, Fremont, Madison)
Pullman/Moscow
88,597
(Latah, Whitman WA)
Boise was just short of passing 900,000 last year.
https://www.census.gov/data/tables/t...cal-areas.html