Housing · Big Rock
Big Rock, IL housing market
The typical Big Rock home is worth about $423,000, up 5.3% in a year, 42% above the Illinois typical home.
Home values, sales, trends and how Big Rock compares with the towns next door — updated as new data is published.
The market right now
Big Rock at a glance
Typical home value
$423K
▲ 5.3% in a year · Zillow
Ten-year trend
Typical home value, 2016–2026
Big RockIllinois
Show as a table
| January | Big Rock | Illinois |
|---|---|---|
| 2017 | $249,000 | $181,000 |
| 2018 | $263,000 | $190,000 |
| 2019 | $272,000 | $195,000 |
| 2020 | $273,000 | $200,000 |
| 2021 | $294,000 | $215,000 |
| 2022 | $328,000 | $236,000 |
| 2023 | $347,000 | $248,000 |
| 2024 | $368,000 | $263,000 |
| 2025 | $395,000 | $278,000 |
| 2026 | $416,000 | $290,000 |
| August 2026 | $423,000 | $298,000 |
Nearby
Big Rock and its neighbors
The towns that share a border. Tap one to see its housing page.
| Town | Typical value | 1-yr change | Days on market | Median income |
|---|---|---|---|---|
| Big Rock | $423K | +5.3% | — | $158,250 |
| Sugar Grove | $460K | +4.2% | — | $125,078 |
Affordability
2.7 years of income
The typical Big Rock home costs about 2.7 years of the town's median household income, less than across Illinois (3.6 years).
Home value ÷ ACS median household income.
The homes
Owners, rent & taxes
Homeownership
93.2%
Illinois: 67.1%
Median tax bill
$7,708
Illinois: $5,298
Median rent
$1,653
Illinois: $1,274
Typical home built
1962
Illinois: 1971
U.S. Census Bureau, ACS 2020-2024.
On the market
Recent listings in Big Rock
Listed in the past 60 days. Each opens on the listing site.
Home values: Zillow Home Value Index (ZHVI), Zillow Research, August 2026. Sales, days on market and supply: Redfin Data Center. Income, ownership, taxes and rent: U.S. Census Bureau, American Community Survey. Listings link to their publishers.