42712 vs 40121 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 42712, Orange = ZIP 40121.
Quick verdict: ZIP 42712 is more affordable rent, lower unemployment, higher work-from-home share. ZIP 40121 is wealthier, lower poverty rate, more diverse, more educated.
Quick Facts
ZIP 42712
Big Clifty CDP, KY
View full profile →- Population1,787
- Median Income$46,926
- Median Home Value$146k
- Median Rent$435
- Median Age50.1 yrs
- Poverty Rate18.4%
ZIP 40121
Fort Knox CDP, KY
View full profile →- Population8,715
- Median Income$74,224
- Median Home Value—
- Median Rent$1,218
- Median Age24.3 yrs
- Poverty Rate8.0%
Visual comparison (same scale)
Population
1,7878,715
Median Income
$46,926$74,224
Median Home Value
$146k—
Median Rent
$435$1,218
Median Age
50.1 yrs24.3 yrs
Poverty Rate
18.4%8.0%
Demographics
ZIP 42712
Big Clifty CDP, KY
View full profile →- White %97.9%
- Black %0.0%
- Asian %0.6%
- Hispanic %1.6%
- Age 0–17 %12.1%
- Age 18–64 %64.6%
- Age 65+ %23.2%
- Bachelor's+ %14.1%
- Diversity Index4/100
ZIP 40121
Fort Knox CDP, KY
View full profile →- White %59.4%
- Black %16.0%
- Asian %2.3%
- Hispanic %25.1%
- Age 0–17 %32.3%
- Age 18–64 %66.0%
- Age 65+ %1.7%
- Bachelor's+ %42.1%
- Diversity Index56/100
Visual comparison (same scale)
White %
97.9%59.4%
Black %
0.0%16.0%
Asian %
0.6%2.3%
Hispanic %
1.6%25.1%
Age 0–17 %
12.1%32.3%
Age 18–64 %
64.6%66.0%
Age 65+ %
23.2%1.7%
Bachelor's+ %
14.1%42.1%
Diversity Index
4/10056/100
Economy
ZIP 42712
Big Clifty CDP, KY
View full profile →- Median Income$46,926
- Unemployment %5.9%
- IRS Net Migration+67
- Work From Home %3.4%
ZIP 40121
Fort Knox CDP, KY
View full profile →- Median Income$74,224
- Unemployment %10.4%
- IRS Net Migration+325
- Work From Home %3.4%
Visual comparison (same scale)
Median Income
$46,926$74,224
Unemployment %
5.9%10.4%
IRS Net Migration
+67+325
Work From Home %
3.4%3.4%
Housing
ZIP 42712
Big Clifty CDP, KY
View full profile →- Median Home Value$146k
- Median Rent$435
- Owner Occupied %88.8%
- Broadband %72.1%
- Vacant %20.1%
- Median Year Built1991
ZIP 40121
Fort Knox CDP, KY
View full profile →- Median Home Value—
- Median Rent$1,218
- Owner Occupied %0.7%
- Broadband %93.5%
- Vacant %10.8%
- Median Year Built1977
Visual comparison (same scale)
Median Home Value
$146k—
Median Rent
$435$1,218
Owner Occupied %
88.8%0.7%
Broadband %
72.1%93.5%
Vacant %
20.1%10.8%
Median Year Built
19911977
Climate & Location
ZIP 42712
Big Clifty CDP, KY
View full profile →- Snow Days/Year0 days
- Elevation (ft)600 ft
- Nearest Airport27.9 miles (44.8 km)
- Distance to Coast287.6 miles (462.8 km)
ZIP 40121
Fort Knox CDP, KY
View full profile →- Snow Days/Year0 days
- Elevation (ft)615 ft
- Nearest Airport4.1 miles (6.6 km)
- Distance to Coast260.7 miles (419.6 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
600 ft615 ft
Nearest Airport
27.9 miles (44.8 km)4.1 miles (6.6 km)
Distance to Coast
287.6 miles (462.8 km)260.7 miles (419.6 km)
Infrastructure
ZIP 42712
Big Clifty CDP, KY
View full profile →- Work From Home %3.4%
- Walkability (0–100)22
- Broadband %72.1%
ZIP 40121
Fort Knox CDP, KY
View full profile →- Work From Home %3.4%
- Walkability (0–100)29
- Broadband %93.5%
Visual comparison (same scale)
Work From Home %
3.4%3.4%
Walkability (0–100)
2229
Broadband %
72.1%93.5%
Frequently Asked Questions
How do ZIP 42712 and 40121 compare?
ZIP 42712 is more affordable rent, lower unemployment, higher work-from-home share. ZIP 40121 is wealthier, lower poverty rate, more diverse, more educated.
What do the blue and orange colors mean?
Blue represents the first ZIP (42712), orange the second (40121). The same colors are used in the map markers and comparison bars.
Where does this data come from?
Data is from the U.S. Census Bureau and other federal sources. See our Methodology page for details.
How can I compare other ZIP codes?
From any ZIP page, use the "Compare with Another ZIP" tool, or go to /compare/XXXXX-vs-YYYYY (replace with two 5-digit ZIP codes).
Continue exploring