ZIP codes
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Rock City, IL Demographics & ZIP Codes
Rock City, Illinois demographics and median household income by ZIP code (in Stephenson County) — 1 ZIP codes — population 1,325 — median income $83,542 — avg. home value $173,000. Compare income, housing, and population across ZIP codes on US5.
Population
1,325
Median household income (avg.)
$83,542
111% of U.S. median
Average home value
$173,000
50% of U.S. median
Average rent
$614
53% of U.S. median
Median age (avg.)
52.4
Rock City demographics
Rock City, Illinois covers 1 ZIP code primarily in Stephenson County, with a combined ZIP-area population of about 1,325.
Across ZIP codes with age data, the average median age is about 52.4 years.
Median household income in Rock City
The average median household income across ZIP codes in Rock City, Illinois is about $83,542 — about 7% above the IL ZIP average ($78,143), and about 11% above the U.S. median ($75,149).
The highest median household income among listed ZIPs is about $83,542 in 61070.
Housing in Rock City
For housing in Rock City, Illinois, the average median home value is about $173,000 and the average median rent is about $614.
The most populous ZIP in this set is 61070 (about 1,325 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in Rock City
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 61070 | Rock | Stephenson County | IL | 1,325 | $83,542 | $173,000 |
Frequently asked questions
What are the demographics of Rock City?
Rock City, Illinois has a combined ZIP-area population of about 1,325 across 1 ZIP codes (primarily Stephenson County). Browse the ZIP table below for population, income, and housing by code.
What is the median household income in Rock City?
The average median household income across ZIP codes in Rock City, Illinois is about $83,542, about 7% above the state ZIP average ($78,143), and about 11% above the U.S. median ($75,149). Average median home value is about $173,000.
How many ZIP codes are in Rock City?
Rock City, 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 Rock City?
This page lists ZIP codes in Rock City, Illinois with population, median household income, and home value. Select a ZIP for a full demographics profile.