More older adults are living in senior housing and the supply of units for elderly Americans is not keeping up with expected demand, according to leaders at a national company specializing in these services. Seniorly, which has an online directory of senior living communities and partners with local advisors, recently released a study on the 782 Most and Least Expensive Cities for Assisted Living in 2024 after analyzing data across its network. The study cited analytics from the National Investment Center for Seniors Housing and Care which found that the total number of occupied senior housing units in the primary markets reached more than 603,000 units in the first quarter of 2024.