ZIP codes
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Fort Knox, KY Demographics & ZIP Codes
Fort Knox, Kentucky demographics and median household income by ZIP code (in Hardin County) — 1 ZIP codes — population 8,715 — median income $74,224. Compare income, housing, and population across ZIP codes on US5.
Population
8,715
Median household income (avg.)
$74,224
99% of U.S. median
Average home value
—
Average rent
$1,218
105% of U.S. median
Median age (avg.)
24.3
Fort Knox demographics
Fort Knox, Kentucky covers 1 ZIP code primarily in Hardin County, with a combined ZIP-area population of about 8,715.
Across ZIP codes with age data, the average median age is about 24.3 years.
Median household income in Fort Knox
The average median household income across ZIP codes in Fort Knox, Kentucky is about $74,224 — about 30% above the KY ZIP average ($57,217), and about even with the U.S. median ($75,149).
The highest median household income among listed ZIPs is about $74,224 in 40121.
Housing in Fort Knox
For housing in Fort Knox, Kentucky, the average median rent is about $1,218.
The most populous ZIP in this set is 40121 (about 8,715 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in Fort Knox
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 40121 | Fort Knox | Hardin County | KY | 8,715 | $74,224 | — |
Frequently asked questions
What are the demographics of Fort Knox?
Fort Knox, Kentucky has a combined ZIP-area population of about 8,715 across 1 ZIP codes (primarily Hardin County). Browse the ZIP table below for population, income, and housing by code.
What is the median household income in Fort Knox?
The average median household income across ZIP codes in Fort Knox, Kentucky is about $74,224, about 30% above the state ZIP average ($57,217), and near the U.S. median ($75,149).
How many ZIP codes are in Fort Knox?
Fort Knox, Kentucky 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 Fort Knox?
This page lists ZIP codes in Fort Knox, Kentucky with population, median household income, and home value. Select a ZIP for a full demographics profile.