Knox County, IL home prices
Knox County, IL: the typical home is worth $119,977 as of 2026-05, up +17.0% over the past year and n/a since 2000. Listings run about $95/sq ft. Rent…
Knox County is accelerating and undervalued — very affordable for what people here earn.
Real Estate Price Map scores, derived from the data on this page · how we calculate them
1976: $39,678 → 2026: $119,977 (3.0×) pre-2000 estimated via FHFA index
Market read
At $119,977, homes in Knox County sit 24% below the Illinois median ($158,388) and 49% below the US median ($233,954). That ranks #81 of 102 Illinois counties by price.
Prices are climbing fast (+17.0% in the last year) — a seller's market.
Homes here move at a steady pace — a median 47 days on the market, with 14% of listings cutting their asking price.
At 2.1× local income, that's more affordable than the typical US county (~3.8×).
Against the typical US price-to-income and price-to-rent, homes here look ~39% cheap for local incomes and rents — a relative bargain.
Buying looks cheaper than renting — ~$592/mo to buy (P&I, 20% down) vs $861/mo to rent.
Home value history
Zillow ZHVI, monthly from 2000 · recessions shaded. See the full 1975 history on the interactive map →
Nearby counties
Warren County, IL ($116,364) · Stark County, IL ($137,060) · Peoria County, IL ($164,333) · Henry County, IL ($170,732) · Fulton County, IL ($103,599) · Mercer County, IL ($169,283)
Frequently asked questions
What is the average home price in Knox County, IL?
Are home prices in Knox County rising or falling?
Is Knox County affordable?
What is the rental yield in Knox County?
How fast do homes sell in Knox County?
| Year | Median home value |
|---|---|
| 2009 | $81,185 |
| 2010 | $76,091 |
| 2011 | $75,705 |
| 2012 | $74,651 |
| 2013 | $80,194 |
| 2014 | $81,508 |
| 2015 | $82,774 |
| 2016 | $83,192 |
| 2017 | $83,685 |
| 2018 | $85,098 |
| 2019 | $84,421 |
| 2020 | $92,821 |
| 2021 | $98,233 |
| 2022 | $100,213 |
| 2023 | $96,979 |
| 2024 | $101,469 |
| 2025 | $102,652 |
| 2026 | $116,029 |