Grundy County, IL home prices

Grundy County, IL: the typical home is worth $322,238 as of 2026-05, up +4.5% over the past year and n/a since 2000. Listings run about $186/sq ft. Rent…

Data as of May 2026 · by the Real Estate Price Map data team · methodology & sources

1979: $86,441 → 2026: $322,238 (3.7×) pre-2000 estimated via FHFA index

Market read

At $322,238, homes in Grundy County sit 103% above the Illinois median ($158,388) and 38% above the US median ($233,954). That ranks #9 of 102 Illinois counties by price.

Prices are holding steady (+4.5% in the last year) — a balanced market.

Homes here move at a steady pace — a median 38 days on the market, with 15% of listings cutting their asking price.

At 3.5× local income, that's more affordable than the typical US county (~3.8×).

Prices here sit roughly in line with what local incomes and rents imply at the typical US multiple.

Renting looks cheaper — buying the typical home runs ~$1,591/mo (P&I, 20% down) vs $1,356/mo to rent.

Home value history

Zillow ZHVI, monthly from 2000 · recessions shaded. See the full 1975 history on the interactive map →

Nearby counties

Kendall County, IL ($397,038) · Will County, IL ($375,899) · La Salle County, IL ($194,342) · Livingston County, IL ($170,420) · Kankakee County, IL ($223,735) · DuPage County, IL ($444,011)