HUD Open Data · FY 2026
What is the Fair Market Rent in Williamson County, IL?
Last updated: FY2026, effective October 1, 2025
In Williamson County, Illinois, the FY2026 Fair Market Rent for a two-bedroom is $1,037 a month. Rents run from $753 for a studio up to $1,386 for a four-bedroom, with the full breakdown by unit size below. HUD sets these rates each year, and housing authorities use them to set Section 8 voucher payment standards. Source: U.S. HUD, Office of Policy Development and Research, FY2026 Fair Market Rents, effective October 1, 2025.
2-Bedroom FMR in Williamson County and Neighbouring Counties
| Unit size | Monthly FMR (FY 2026) |
|---|---|
| Studio / Efficiency | $753 |
| 1 Bedroom | $790 |
| 2 Bedrooms | $1,037 |
| 3 Bedrooms | $1,369 |
| 4 Bedrooms | $1,386 |
How does Williamson County compare?
2-bedroom Fair Market Rent ranked against all counties in Illinois.
Higher rent than 64% of counties in Illinois · 38th of 102
| # | County | Value |
|---|---|---|
| 1 | Kendall County | $2,050 |
| 2 | Will County | $1,781 |
| 2 | Lake County | $1,781 |
| … 34 more … | ||
| 38 | Williamson County(you are here) | $1,037 |
| … 61 more … | ||
| 59 | Macoupin County | $916 |
| 59 | Mason County | $916 |
| 59 | Lee County | $916 |
More data for Williamson County, Illinois
No nearby counties with Fair Market Rent data are available in our database.
Frequently asked questions
What is the Fair Market Rent in Williamson County, IL for 2026?
In Williamson County, Illinois, a two-bedroom has a Fair Market Rent of $1,037 a month for FY2026, and rents range from $753 for a studio to $1,386 for a four-bedroom. The full breakdown by unit size is in the table above. Source: U.S. HUD, Office of Policy Development and Research, FY2026 Fair Market Rents.
What is the 2-bedroom Fair Market Rent in Williamson County, IL?
A two-bedroom in Williamson County, Illinois has a Fair Market Rent of $1,037 a month under HUD's FY2026 figures.
When do Fair Market Rents in Williamson County become effective?
FY2026 Fair Market Rents became effective October 1, 2025 and apply through September 30, 2026.
How does HUD calculate Fair Market Rents?
HUD calculates FMRs as the 40th percentile of gross rents paid by recent movers for standard-quality units in a metropolitan area or non-metropolitan county. Data comes from the American Community Survey (ACS).
How do I find Fair Market Rent by ZIP code in Williamson County, IL?
Every ZIP code in Williamson County has its own Fair Market Rent page — see the "ZIP codes in Williamson County" list above. Each ZIP page lists studio through 4-bedroom FMRs for FY2026.
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