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St. Augustine, IL Demographics & ZIP Codes
St. Augustine, Illinois demographics and median household income by ZIP code (in Knox County) — 1 ZIP codes — population 238 — median income $57,353 — avg. home value $78,100. Compare income, housing, and population across ZIP codes on US5.
Population
238
Median household income (avg.)
$57,353
76% of U.S. median
Average home value
$78,100
22% of U.S. median
Median age (avg.)
51.4
St. Augustine demographics
St. Augustine, Illinois covers 1 ZIP code primarily in Knox County, with a combined ZIP-area population of about 238.
Across ZIP codes with age data, the average median age is about 51.4 years.
Median household income in St. Augustine
The average median household income across ZIP codes in St. Augustine, Illinois is about $57,353 — about 27% below the IL ZIP average ($78,143), and about 24% below the U.S. median ($75,149).
The highest median household income among listed ZIPs is about $57,353 in 61474.
Housing in St. Augustine
For housing in St. Augustine, Illinois, the average median home value is about $78,100.
The most populous ZIP in this set is 61474 (about 238 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in St. Augustine
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 61474 | St. Augustine | Knox County | IL | 238 | $57,353 | $78,100 |
Frequently asked questions
What are the demographics of St. Augustine?
St. Augustine, Illinois has a combined ZIP-area population of about 238 across 1 ZIP codes (primarily Knox County). Browse the ZIP table below for population, income, and housing by code.
What is the median household income in St. Augustine?
The average median household income across ZIP codes in St. Augustine, Illinois is about $57,353, about 27% below the state ZIP average ($78,143), and about 24% below the U.S. median ($75,149). Average median home value is about $78,100.
How many ZIP codes are in St. Augustine?
St. Augustine, 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 St. Augustine?
This page lists ZIP codes in St. Augustine, Illinois with population, median household income, and home value. Select a ZIP for a full demographics profile.