DeKalb County, IL home prices

DeKalb County, IL: the typical home is worth $297,572 as of 2026-05, up +6.0% over the past year and n/a since 2000. Listings run about $193/sq ft. Rent…

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

1978: $64,293 → 2026: $297,572 (4.6×) pre-2000 estimated via FHFA index

Market read

At $297,572, homes in DeKalb County sit 88% above the Illinois median ($158,388) and 27% above the US median ($233,954). That ranks #10 of 102 Illinois counties by price.

Prices are holding steady (+6.0% in the last year) — a balanced market.

Homes here move at a steady pace — a median 39 days on the market, with 11% of listings cutting their asking price.

At 4.3× local income, that's pricier than the typical US county (~3.8×).

Against the typical US price-to-income and price-to-rent, homes here look ~12% expensive for local incomes and rents.

Rent and buy are close — ~$1,469/mo to buy (P&I, 20% down) vs $1,287/mo to rent.

Home value history

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

Nearby counties

Kane County, IL ($382,854) · Kendall County, IL ($397,038) · Lee County, IL ($184,555) · Boone County, IL ($286,605) · Ogle County, IL ($228,072) · McHenry County, IL ($368,900)