Zip Codes in Illinois Where Section 8 Pays More Than Market Rent

How these numbers are calculated

• Voucher rent is the HUD FY2026 2-bedroom Small Area Fair Market Rent (SAFMR) where it applies, otherwise the county or metro Fair Market Rent. This is the basis housing authorities use to set payment standards, typically 90 to 110 percent of it, and it is a gross rent that includes a utility allowance.
• Typical market rent is the Zillow Observed Rent Index (ZORI) for the ZIP code as of June 2026, a smoothed measure of asking rents across all home types and sizes. Rent data provided by Zillow Research.
• Premium compares the 2-bedroom voucher rent against that blended market figure, which is the conservative comparison. Premiums for 3 and 4 bedroom homes are often larger.
• The premium is a screening signal, not a guarantee. Housing authorities run a rent reasonableness review against unassisted comparables before approving any contract rent, and the payment standard is a ceiling, not an entitlement. Always verify with the local housing authority.

Sources: HUD Fair Market Rents and Zillow Research (ZORI). FMRs effective October 1 each year; ZORI updates monthly.

Frequently asked questions

Which ZIP code in Illinois has the biggest Section 8 premium?

61866 (Rantoul) currently shows the largest gap: the 2-bedroom voucher rent basis is $1,122 against a typical market rent of $808, a +39% premium.

How many ZIP codes in Illinois pay above market rent?

Of the 280 Illinois ZIP codes with both HUD and market rent data, 95 currently show a voucher rent basis above the typical asking rent.

Can I actually charge the full amount shown here?

Not automatically. The housing authority sets a payment standard between 90 and 110 percent of the FMR or SAFMR, and every lease passes a rent reasonableness review against comparable unassisted units. Treat the premium as a screening signal for where to look, then verify with the local housing authority.