ZIP codes
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Flat Rock, IL Demographics & ZIP Codes
Flat Rock, Illinois demographics and median household income by ZIP code (in Crawford County) — 1 ZIP codes — population 1,905 — median income $74,167 — avg. home value $105,400. Compare income, housing, and population across ZIP codes on US5.
Population
1,905
Median household income (avg.)
$74,167
99% of U.S. median
Average home value
$105,400
30% of U.S. median
Median age (avg.)
40.8
Flat Rock demographics
Flat Rock, Illinois covers 1 ZIP code primarily in Crawford County, with a combined ZIP-area population of about 1,905.
Across ZIP codes with age data, the average median age is about 40.8 years.
Median household income in Flat Rock
The average median household income across ZIP codes in Flat Rock, Illinois is about $74,167 — about 5% below the IL ZIP average ($78,143), and about even with the U.S. median ($75,149).
The highest median household income among listed ZIPs is about $74,167 in 62427.
Housing in Flat Rock
For housing in Flat Rock, Illinois, the average median home value is about $105,400.
The most populous ZIP in this set is 62427 (about 1,905 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in Flat Rock
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 62427 | Flat Rock | Crawford County | IL | 1,905 | $74,167 | $105,400 |
Frequently asked questions
What are the demographics of Flat Rock?
Flat Rock, Illinois has a combined ZIP-area population of about 1,905 across 1 ZIP codes (primarily Crawford County). Browse the ZIP table below for population, income, and housing by code.
What is the median household income in Flat Rock?
The average median household income across ZIP codes in Flat Rock, Illinois is about $74,167, about 5% below the state ZIP average ($78,143), and near the U.S. median ($75,149). Average median home value is about $105,400.
How many ZIP codes are in Flat Rock?
Flat Rock, Illinois includes 1 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Flat Rock?
This page lists ZIP codes in Flat Rock, Illinois with population, median household income, and home value. Select a ZIP for a full demographics profile.