51010 vs 51056 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 51010, Orange = ZIP 51056.
Quick verdict: ZIP 51056 is wealthier, higher home values, lower poverty rate, lower unemployment, more diverse, more educated, higher work-from-home share.
Quick Facts
ZIP 51010
Castana city, IA
View full profile →- Population416
- Median Income$92,083
- Median Home Value$108k
- Median Rent—
- Median Age57.5 yrs
- Poverty Rate4.6%
ZIP 51056
Smithland city, IA
View full profile →- Population332
- Median Income$100,395
- Median Home Value$151k
- Median Rent$475
- Median Age57.6 yrs
- Poverty Rate3.9%
Visual comparison (same scale)
Population
416332
Median Income
$92,083$100,395
Median Home Value
$108k$151k
Median Rent
—$475
Median Age
57.5 yrs57.6 yrs
Poverty Rate
4.6%3.9%
Demographics
ZIP 51010
Castana city, IA
View full profile →- White %96.4%
- Black %0.0%
- Asian %0.0%
- Hispanic %3.6%
- Age 0–17 %14.7%
- Age 18–64 %64.4%
- Age 65+ %20.9%
- Bachelor's+ %10.6%
- Diversity Index7/100
ZIP 51056
Smithland city, IA
View full profile →- White %90.1%
- Black %0.0%
- Asian %0.0%
- Hispanic %3.9%
- Age 0–17 %12.3%
- Age 18–64 %54.2%
- Age 65+ %33.4%
- Bachelor's+ %21.3%
- Diversity Index18/100
Visual comparison (same scale)
White %
96.4%90.1%
Black %
0.0%0.0%
Asian %
0.0%0.0%
Hispanic %
3.6%3.9%
Age 0–17 %
14.7%12.3%
Age 18–64 %
64.4%54.2%
Age 65+ %
20.9%33.4%
Bachelor's+ %
10.6%21.3%
Diversity Index
7/10018/100
Economy
ZIP 51010
Castana city, IA
View full profile →- Median Income$92,083
- Unemployment %1.0%
- IRS Net Migration+24
- Work From Home %5.1%
ZIP 51056
Smithland city, IA
View full profile →- Median Income$100,395
- Unemployment %0.0%
- IRS Net Migration+19
- Work From Home %8.8%
Visual comparison (same scale)
Median Income
$92,083$100,395
Unemployment %
1.0%0.0%
IRS Net Migration
+24+19
Work From Home %
5.1%8.8%
Housing
ZIP 51010
Castana city, IA
View full profile →- Median Home Value$108k
- Median Rent—
- Owner Occupied %86.3%
- Broadband %85.8%
- Vacant %16.1%
- Median Year Built1953
ZIP 51056
Smithland city, IA
View full profile →- Median Home Value$151k
- Median Rent$475
- Owner Occupied %98.2%
- Broadband %76.2%
- Vacant %11.8%
- Median Year Built1951
Visual comparison (same scale)
Median Home Value
$108k$151k
Median Rent
—$475
Owner Occupied %
86.3%98.2%
Broadband %
85.8%76.2%
Vacant %
16.1%11.8%
Median Year Built
19531951
Climate & Location
ZIP 51010
Castana city, IA
View full profile →- Snow Days/Year0 days
- Elevation (ft)1,400 ft
- Nearest Airport32.4 miles (52.1 km)
- Distance to Coast370.6 miles (596.5 km)
ZIP 51056
Smithland city, IA
View full profile →- Snow Days/Year0 days
- Elevation (ft)1,200 ft
- Nearest Airport24.3 miles (39.1 km)
- Distance to Coast362.5 miles (583.4 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
1,400 ft1,200 ft
Nearest Airport
32.4 miles (52.1 km)24.3 miles (39.1 km)
Distance to Coast
370.6 miles (596.5 km)362.5 miles (583.4 km)
Infrastructure
ZIP 51010
Castana city, IA
View full profile →- Work From Home %5.1%
- Walkability (0–100)22
- Broadband %85.8%
ZIP 51056
Smithland city, IA
View full profile →- Work From Home %8.8%
- Walkability (0–100)22
- Broadband %76.2%
Visual comparison (same scale)
Work From Home %
5.1%8.8%
Walkability (0–100)
2222
Broadband %
85.8%76.2%
Frequently Asked Questions
How do ZIP 51010 and 51056 compare?
ZIP 51056 is wealthier, higher home values, lower poverty rate, lower unemployment, more diverse, more educated, higher work-from-home share.
What do the blue and orange colors mean?
Blue represents the first ZIP (51010), orange the second (51056). 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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