37921 vs 50138 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 37921, Orange = ZIP 50138.
Quick verdict: ZIP 37921 is higher home values, more diverse. ZIP 50138 is wealthier, more affordable rent, lower poverty rate, lower unemployment, more educated, higher work-from-home share.
Quick Facts
ZIP 37921
Knoxville city, TN
View full profile →- Population29,064
- Median Income$57,813
- Median Home Value$204k
- Median Rent$898
- Median Age34.0 yrs
- Poverty Rate17.1%
ZIP 50138
Knoxville city, IA
View full profile →- Population11,374
- Median Income$76,887
- Median Home Value$170k
- Median Rent$665
- Median Age42.8 yrs
- Poverty Rate8.7%
Visual comparison (same scale)
Population
29,06411,374
Median Income
$57,813$76,887
Median Home Value
$204k$170k
Median Rent
$898$665
Median Age
34.0 yrs42.8 yrs
Poverty Rate
17.1%8.7%
Demographics
ZIP 37921
Knoxville city, TN
View full profile →- White %68.4%
- Black %19.2%
- Asian %0.7%
- Hispanic %8.7%
- Age 0–17 %25.6%
- Age 18–64 %61.2%
- Age 65+ %13.2%
- Bachelor's+ %26.6%
- Diversity Index49/100
ZIP 50138
Knoxville city, IA
View full profile →- White %95.2%
- Black %0.3%
- Asian %0.8%
- Hispanic %2.0%
- Age 0–17 %20.8%
- Age 18–64 %58.0%
- Age 65+ %21.2%
- Bachelor's+ %28.4%
- Diversity Index9/100
Visual comparison (same scale)
White %
68.4%95.2%
Black %
19.2%0.3%
Asian %
0.7%0.8%
Hispanic %
8.7%2.0%
Age 0–17 %
25.6%20.8%
Age 18–64 %
61.2%58.0%
Age 65+ %
13.2%21.2%
Bachelor's+ %
26.6%28.4%
Diversity Index
49/1009/100
Economy
ZIP 37921
Knoxville city, TN
View full profile →- Median Income$57,813
- Unemployment %3.7%
- IRS Net Migration+1,031
- Work From Home %10.7%
ZIP 50138
Knoxville city, IA
View full profile →- Median Income$76,887
- Unemployment %2.4%
- IRS Net Migration+652
- Work From Home %10.8%
Visual comparison (same scale)
Median Income
$57,813$76,887
Unemployment %
3.7%2.4%
IRS Net Migration
+1,031+652
Work From Home %
10.7%10.8%
Housing
ZIP 37921
Knoxville city, TN
View full profile →- Median Home Value$204k
- Median Rent$898
- Owner Occupied %60.9%
- Broadband %84.4%
- Vacant %11.2%
- Median Year Built1978
ZIP 50138
Knoxville city, IA
View full profile →- Median Home Value$170k
- Median Rent$665
- Owner Occupied %79.8%
- Broadband %83.5%
- Vacant %8.1%
- Median Year Built1971
Visual comparison (same scale)
Median Home Value
$204k$170k
Median Rent
$898$665
Owner Occupied %
60.9%79.8%
Broadband %
84.4%83.5%
Vacant %
11.2%8.1%
Median Year Built
19781971
Climate & Location
ZIP 37921
Knoxville city, TN
View full profile →- Snow Days/Year0 days
- Elevation (ft)830 ft
- Nearest Airport11.6 miles (18.7 km)
- Distance to Coast201.2 miles (323.8 km)
ZIP 50138
Knoxville city, IA
View full profile →- Snow Days/Year0 days
- Elevation (ft)895 ft
- Nearest Airport32.8 miles (52.8 km)
- Distance to Coast260.8 miles (419.7 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
830 ft895 ft
Nearest Airport
11.6 miles (18.7 km)32.8 miles (52.8 km)
Distance to Coast
201.2 miles (323.8 km)260.8 miles (419.7 km)
Infrastructure
ZIP 37921
Knoxville city, TN
View full profile →- Work From Home %10.7%
- Walkability (0–100)47
- Broadband %84.4%
ZIP 50138
Knoxville city, IA
View full profile →- Work From Home %10.8%
- Walkability (0–100)37
- Broadband %83.5%
Visual comparison (same scale)
Work From Home %
10.7%10.8%
Walkability (0–100)
4737
Broadband %
84.4%83.5%
Frequently Asked Questions
How do ZIP 37921 and 50138 compare?
ZIP 37921 is higher home values, more diverse. ZIP 50138 is wealthier, more affordable rent, lower poverty rate, lower unemployment, more educated, higher work-from-home share.
What do the blue and orange colors mean?
Blue represents the first ZIP (37921), orange the second (50138). 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).
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