US5.com
  1. Home
  2. States
  3. Kentucky
  4. ZIP 40121
  5. People & Community
Fort Knox CDP, KY

ZIP 40121 — People & Community

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Middle ClassLow Snow Area

Demographics, education attainment, health access, and community lifestyle

Population & Demographics in 40121

40121 has a population of 8,715 with a median age of 24.3 yrs (55.6% male).

Race & Ethnicity
White
59.4%-4% vs US avg
x
Black
16.0%+29% vs US avg
x
Asian
2.3%-61% vs US avg
x
Hispanic
25.1%+34% vs US avg
x
Age Groups
0–17
32.3%+47% vs US avg
x
18–64
66.0%+7% vs US avg
x
65+
1.7%-90% vs US avg
x
Education
Less than HS
4.3%-61% vs US avg
x
High school
12.3%-53% vs US avg
x
Some college
41.3%+43% vs US avg
x
Bachelor's+
42.1%+25% vs US avg
x
Marital Status
Married
54.0%+12% vs US avg
x
Never married
39.2%+16% vs US avg
x
Divorced
5.9%-43% vs US avg
x
Widowed / Separated
0.9%
x
Diversity Index
56/100

Higher = more diverse (Simpson index from race/ethnicity)

Social & household profile

Poverty, nativity, veterans, disability, family structure, and births (ACS).

Poverty Rate
8.0%-30% vs US avg
x
Foreign Born
52.7%+279% vs US avg
x
Veterans
21.9%+266% vs US avg
x
Disability
12.0%-10% vs US avg
x
Single Parent
12.5%+54% vs US avg
x
Recent Births
74.9%+1192% vs US avg
x
Top ancestry
EnglishGermanIrish

Health & Community Indicators in 40121

Poverty Rate
8.0%-30% vs US avg
x
Veterans
21.9%+266% vs US avg
x
Foreign Born
52.7%+279% vs US avg
x
Single Parent
12.5%+54% vs US avg
x
Disability
12.0%-10% vs US avg
x
Uninsured
4.8%-40% vs US avg
x
SNAP Benefits
6.3%-46% vs US avg
x
Private School
0.5%-95% vs US avg
x
Recent Births
74.9%+1192% vs US avg
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population8,715
Median age24.3
Poverty rate8.0%
Demographics statistics
Demographics
White59.4%
Hispanic25.1%
Black16.0%
Asian2.3%
Foreign-born52.7%