Ada County holds Boise, Meridian, Eagle, Kuna, Star and Garden City, with about 546,141 residents on July 1, 2025 in Census estimates, Idaho's most populous county by a wide margin.
18.1% of residents are 65 or older and the median age is 39.1. Most of the valley's hospitals, specialists and licensed assisted living are here, so the county page links out to each city and each part of Boise.
How many seniors and licensed care options does Ada County, Idaho have?
Ada County had about 98,764 residents aged 65 and older (18.1% of 546,141), including 10,184 aged 85 and older, on July 1, 2025, and IDHW lists 65 senior-serving RALFs while CMS lists 14 certified nursing homes there.
| Found in Ada County | Not found in Ada County | |
|---|---|---|
| Licensed or certified with a local address | Senior assisted living (RALFs): 65, Nursing homes: 14, Home health offices: 9, Hospice offices: 13 | — |
| No local listing on file | — | All categories present |
| Secured memory care beds | 886 beds in 38 buildings | — |
Population: U.S. Census Bureau, Vintage 2025 county population estimates by age (July 1, 2025).
Where is licensed senior care located inside Ada County?
Ada County's 65 senior RALFs are spread across 6 cities, led by Boise with 34.
Who helps seniors and caregivers in Ada County, Idaho?
Ada County is part of Area 3, served by the Southwest Idaho Area Agency on Aging ((208) 898-7060, toll-free (844) 850-2883), which covers Ada, Adams, Boise, Canyon, Elmore, Gem, Owyhee, Payette, Valley and Washington counties and runs Adult Protective Services and the long-term care ombudsman for the region.
Assisted living complaints go to IDHW's RALF program at (208) 364-1962; Medicaid applications go through IDHW at (877) 456-1233. The Idaho Commission on Aging's state office is in Boise at 6305 W. Overland Rd., Ste. 110, Boise, ID 83709.
How far is Boise from a hospital and from downtown Boise?
From Boise, the county seat, the nearest acute-care hospital is Boise VA Medical Center, about 3.8 miles away in a straight line.
Next come St. Luke's Boise Medical Center (about 4 miles) and Saint Alphonsus Regional Medical Center (about 7 miles). These are approximate straight-line distances, not driving routes.