Mercer County, IL home prices

Mercer County, IL: the typical home is worth $169,283 as of 2026-05, up +8.7% over the past year and n/a since 2000. Listings run about $82/sq ft. Rent…

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

1991: $69,519 → 2026: $169,283 (2.4×) pre-2000 estimated via FHFA index

Market read

At $169,283, homes in Mercer County sit 7% above the Illinois median ($158,388) and 28% below the US median ($233,954). That ranks #40 of 102 Illinois counties by price.

Prices are climbing fast (+8.7% in the last year) — a seller's market.

Homes here move at a steady pace — a median 43 days on the market, with 10% of listings cutting their asking price.

At 2.2× 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 ~42% cheap for local incomes and rents — a relative bargain.

Home value history

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

Nearby counties

Rock Island County, IL ($158,998) · Warren County, IL ($116,364) · Louisa County, IA ($172,248) · Muscatine County, IA ($203,173) · Henderson County, IL ($124,943) · Des Moines County, IA ($149,889)