PlainZIP

Fort Knox, KY

Single-footprint Census roll-up for Fort Knox, KY: 1 USPS ZIP, population 10,124. Open the primary ZIP for household income, housing tenure, and commute from ACS 2023 5-Year Estimates.

U.S. Census Bureau, SimpleMaps US ZIP Code Database, delivery-area ZIP coverage

ACS city ledger plate

Sheet FORT-KNOX-KY · Fort Knox, KY 1 ZIPs · 10,124 pop · #8438/25278 · Hardin County

INC-HIGH · RANK-UPPER · PHOTO-FINISH · BOOK-ONE · OWN-RENT · POP-TOWN · SPREAD-UNK · HOME-UNK

  • INC-HIGH $82,663
  • RANK-UPPER #8438/25278
  • PHOTO-FINISH ≈ Rineyville
  • BOOK-ONE 1 ZIP
  • OWN-RENT 0% owners
  • POP-TOWN 10,124
  • SPREAD-UNK Single-ZIP book
  • HOME-UNK Homes pending

Nearest income peer: Rineyville, KY (+ $2,057 income $)

Instrument codes from this city’s ACS household income, national rank, county-peer gap, ZIP book, owner tenure, population scale, intra-city income spread, and home-value band, not a moving recommendation.

Income neighbourhood around Fort Knox

Lowest/highest poles plus county-sharing cities nearest Fort Knox on average ZIP median household income. Full ladder: /cities.

median HH income

What this shows County-sharing peers only, not the full US city board. Open a near peer when the gap is small; open the poles when the mosaic is wide.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2026-08-25

National city placement

According to ACS 5-Year Estimates, Fort Knox, KY sits among US cities with an above-median household income, on a town-scale population base, across a single-ZIP footprint.

Top 33%
household income vs 25,278 US cities
10,124
city population (Census)
1
USPS ZIP codes covered
$82,663
avg ZIP median income

Income percentile ranks this city's average ZIP median household income against 25,278 US cities with ACS income on at least one ZIP. Scale and ZIP-spread words come from Census population and USPS ZIP coverage.

Above-median income on a short ZIP list (1) - lead code 40121 (10,124 residents). Household income $82,663 is the roll-up; open the ZIP for tenure and commute.

Owner-occupancy is comparatively low (0.0%) for this income tier, rent $1,502 may matter more than the home-value average.

Within Kentucky, Garfield is the closest lower-income city and Cerulean the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Fort Knox.

Population concentration

Fort Knox reads through its lone ZIP, 40121

10,124 ACS residents, one ZIP: 40121 is not the leading code inside Fort Knox, it is the only one on file. Treat the ZIP page as the primary source for anything below the city-wide total.

Census ZBP business roll-up

Sparse ZBP book inside single-ZIP Fort Knox

Citywide ZBP: 55 establishments, 1,015 employees , annual payroll $55,488k (~5 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 40121 (55 units) ; leading NAICS Professional, scientific, and technical services (14) · also Administrative and support and waste management and remediation services · Accommodation and food services .

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ZIP Codes in Fort Knox, KY

These ZIP codes sit in Hardin County, which covers 12 ZIP codes in all; 1 of them fall in Fort Knox. See the Hardin County roll-up →

Fort Knox sits in the upper half of Hardin County on income: Elizabethtown, Radcliff and Vine Grove report less, while Glendale reports more. West Point marks the far end of that range at $50,577, 39% below Fort Knox.

ZIP Code Population Median income Establishments Density
40121 10,124 $82,663 55 115
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Fort Knox roll-ups here are for informational purposes only and do not constitute financial or relocation advice. ACS and Census ZBP figures are estimates; confirm the current table against Census before a money or move decision involving Fort Knox, .