Williamson County, Illinois · County Market Snapshot
Assisted living in Williamson County, Illinois
Demand, supply, and opportunity for small assisted living homes in Williamson County — from the RAL Market Scout dataset.
Updated July 2026
Williamson County, IL scores 7.9/10 (Strong) for assisted living opportunity. It has 5,549 residents aged 75+, growing 5.9%, against 10 licensed homes — a strong small-home market on RAL Market Scout's demand-vs-supply scoring.
Opportunity score
7.9/10
Strong
Population 75+
5,549
5.9% growth
Licensed homes
10
current supply
Demand rating
4.6/10
Low
Why Williamson County ranks here
Williamson County scores 7.9/10 (Strong) because its 5,549 seniors 75+ are growing 5.9% against just 10 licensed homes, with referral capacity of 4.0 per 1,000 seniors from nearby hospitals, hospice, and home-health agencies. A senior median income of $46,501 and median home value of $156,400 signal the local private-pay base.
Williamson County demand & supply detail
Population 75+
5,549
75+ growth (10-yr)
5.9%
Dementia prevalence (65+)
7.0%
Licensed assisted living homes
10
Referral facilities nearby (hospital · hospice · SNF · home health · FQHC)
Licensed assisted living homes in Williamson County
Facility
City
Beds
SUNSHINE GARDENS
Marion
63
VILLAS OF HOLLY BROOK HERRIN
Carterville
50
ANCHOR OF MARION (THE)
Marion
39
REFLECTIONS MEMORY CARE - HERRIN
Carterville
32
VOYAGE SENIOR LIVING OF HERRIN-MARKET
Herrin
28
VOYAGE SENIOR LIVING - MARION SOUTH
Marion
27
FIFTH SEASON RES., RADCLIFFE
Marion
26
VOYAGE SENIOR LIVING OF HERRIN-AFFORDABLE
Herrin
24
HAWTHORNE INN OF PARKWAY
Marion
17
PREMIER SENIOR LIVING
Carterville
7
Frequently asked questions
How many assisted living homes are in Williamson County?
Williamson County has 10 licensed assisted living homes, serving 5,549 residents aged 75 and older.
Is Williamson County a good market for assisted living?
Williamson County scores 7.9 out of 10 (Strong) on RAL Market Scout, which weighs 75+ demand and projected senior growth against current bed supply. Its 75+ population is growing 5.9%.
How fast is the senior population growing in Williamson County?
The 75+ population in Williamson County is projected to change 5.9% over the coming decade, with dementia prevalence around 7.0% of seniors 65+.
Go deeper on Williamson County
RAL Market Scout maps demand and supply down to the ZIP and builds a full site report for any specific address in Williamson County.
Sources: Licensed-home count from the Illinois state roster (RAL Market Scout pipeline). 75+ population, growth, income, and home value from U.S. Census ACS. Dementia prevalence from CMS chronic-condition data. Opportunity score is RAL Market Scout's model. Snapshot: 2026-07. Informational only — not legal, financial, or investment advice.