Local supply and market context for residential assisted living in Diamond Bar.
Updated July 2026
Diamond Bar, CA has 16 licensed assisted living homes (92 beds, averaging 5.8 per home). It sits in Los Angeles County, a moderate RAL market scoring 6.5/10, with 616,913 seniors 75+ growing 6.9%.
Licensed homes
16
Diamond Bar
Licensed beds
92
total
Avg home size
5.8 beds
per home
County opportunity
6.5/10
Moderate
The Diamond Bar assisted living market
Diamond Bar has 16 licensed assisted living homes totaling 92 beds — an average of 5.8 beds per home, skewing toward small residential (RAL-style) homes. As part of Los Angeles County, it draws on a 75+ population of 616,913 growing 6.9%, with a senior median income of $64,269. See the full Los Angeles County market or all California top markets.
Frequently asked questions
How many assisted living homes are in Diamond Bar, CA?
Diamond Bar has 16 licensed assisted living homes with about 92 total beds.
Is Diamond Bar a good place to open an assisted living home?
Diamond Bar is in Los Angeles County, which scores 6.5/10 (Moderate) on RAL Market Scout; its 75+ population is growing 6.9%. Current local supply is 16 homes.
What county is Diamond Bar in?
Diamond Bar is in Los Angeles County, California.
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Sources: Home and bed counts from the California licensing roster (RAL Market Scout pipeline). County demand, growth, and income from U.S. Census ACS. Snapshot: 2026-07. Informational only — not legal, financial, or investment advice.