| ZIP Code | 40121 |
|---|---|
| City | Fort Knox |
| State | Kentucky (KY) |
| County | Hardin County |
| Area Code | 502 |
| Elevation | 685 ft |
| Latitude | 37.926895 |
|---|---|
| Longitude | -85.95981 |
| Timezone | New York (DST) |
| FIPS | 21093 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 24.3 yrs ↓ 10% since 2019 |
|---|---|
| Avg Household Size | 3.21 |
| Below Poverty | 6.5% ▼ 35% below avg |
| College Grads | 57.6% ▲ 49% above avg |
| Unemployment | 3.6% ▼ 26% below avg |
| No HS Diploma | 63 (1.5%) |
| HS Graduate | 510 (12.2%) |
| Some College | 304 (7.3%) |
| Associates | 900 (21.5%) |
| Bachelors | 652 (15.6%) |
| Graduate Degree | 1,758 (42%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $74,224 ≈ Avg ↑ 25% since 2019 |
|---|---|
| Median Rent | $1,234/mo ↑ 13% since 2019 |
| Total Units | 2,468 |
| Vacant Units | 266 |
| Avg HH Size | 3.21 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 2,468 |
|---|---|
| Vacant | 266 |
| Owner Occupied | 0.7% |
| Renter Occupied | 99.3% |
| Avg HH Size | 3.21 |
ZIP code 40121 is located in Fort Knox, Kentucky, within Hardin County. With a population of 8,715, this is a lightly populated ZIP code with a young community — the median age is 24.3 years. Economically, 40121 is a solidly middle-class ZIP code: the median household income of $74,224 is near the national average.
Renters can expect to pay around $1,234 per month in median rent. This is predominantly a renter community, with 99.3% of occupied units rented — typical of urban and transitional neighborhoods.
The population of 40121 is majority White (50.27%). Residents are well-educated — 57.6% hold a bachelor's degree or higher, which is above the national average. Poverty affects a relatively small share of residents at 6.5%. Household income has grown by 25% since 2019.
The unemployment rate in 40121 stands at 3.6%, which is below the national average. As in most parts of the country, driving alone is the dominant commute mode at 70%.
Overall, ZIP code 40121 in Fort Knox, KY is characterized as solidly middle-class, well-educated, and a young community.