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Sterling, IL Demographics & ZIP Codes
Sterling, Illinois demographics and median household income by ZIP code (in Whiteside County) — 1 ZIP codes — population 20,916 — median income $60,854 — avg. home value $121,000. Compare income, housing, and population across ZIP codes on US5.
Population
20,916
Median household income (avg.)
$60,854
81% of U.S. median
Average home value
$121,000
35% of U.S. median
Average rent
$605
52% of U.S. median
Median age (avg.)
43.3
Sterling demographics
Sterling, Illinois covers 1 ZIP code primarily in Whiteside County, with a combined ZIP-area population of about 20,916.
Across ZIP codes with age data, the average median age is about 43.3 years.
Median household income in Sterling
The average median household income across ZIP codes in Sterling, Illinois is about $60,854 — about 22% below the IL ZIP average ($78,143), and about 19% below the U.S. median ($75,149).
The highest median household income among listed ZIPs is about $60,854 in 61081.
Housing in Sterling
For housing in Sterling, Illinois, the average median home value is about $121,000 and the average median rent is about $605.
The most populous ZIP in this set is 61081 (about 20,916 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in Sterling
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 61081 | Sterling | Whiteside County | IL | 20,916 | $60,854 | $121,000 |
Frequently asked questions
What are the demographics of Sterling?
Sterling, Illinois has a combined ZIP-area population of about 20,916 across 1 ZIP codes (primarily Whiteside County). Browse the ZIP table below for population, income, and housing by code.
What is the median household income in Sterling?
The average median household income across ZIP codes in Sterling, Illinois is about $60,854, about 22% below the state ZIP average ($78,143), and about 19% below the U.S. median ($75,149). Average median home value is about $121,000.
How many ZIP codes are in Sterling?
Sterling, 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 Sterling?
This page lists ZIP codes in Sterling, Illinois with population, median household income, and home value. Select a ZIP for a full demographics profile.