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Knoxville, IA Demographics & ZIP Codes
Knoxville, Iowa demographics and median household income by ZIP code (in Marion County) — 1 ZIP codes — population 11,374 — median income $76,887 — avg. home value $169,900. Compare income, housing, and population across ZIP codes on US5.
Population
11,374
Median household income (avg.)
$76,887
102% of U.S. median
Average home value
$169,900
49% of U.S. median
Average rent
$665
57% of U.S. median
Median age (avg.)
42.8
Knoxville demographics
Knoxville, Iowa covers 1 ZIP code primarily in Marion County, with a combined ZIP-area population of about 11,374.
Across ZIP codes with age data, the average median age is about 42.8 years.
Median household income in Knoxville
The average median household income across ZIP codes in Knoxville, Iowa is about $76,887 — about 4% above the IA ZIP average ($74,194), and about even with the U.S. median ($75,149).
The highest median household income among listed ZIPs is about $76,887 in 50138.
Housing in Knoxville
For housing in Knoxville, Iowa, the average median home value is about $169,900 and the average median rent is about $665.
The most populous ZIP in this set is 50138 (about 11,374 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in Knoxville
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 50138 | Knoxville | Marion County | IA | 11,374 | $76,887 | $169,900 |
Frequently asked questions
What are the demographics of Knoxville?
Knoxville, Iowa has a combined ZIP-area population of about 11,374 across 1 ZIP codes (primarily Marion County). Browse the ZIP table below for population, income, and housing by code.
What is the median household income in Knoxville?
The average median household income across ZIP codes in Knoxville, Iowa is about $76,887, about 4% above the state ZIP average ($74,194), and near the U.S. median ($75,149). Average median home value is about $169,900.
How many ZIP codes are in Knoxville?
Knoxville, Iowa 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 Knoxville?
This page lists ZIP codes in Knoxville, Iowa with population, median household income, and home value. Select a ZIP for a full demographics profile.