ZIP 57221 vs ZIP 57233

Source:

Bryant, SD – Erwin, SD

This side-by-side compares ZIP 57221 (Bryant, SD) and ZIP 57233 (Erwin, SD) using the same Census ACS 5-Year table fields for both, no averages swapped in, no national proxies. ZIP 57221 has a population of 808 at 3 people per square mile, while ZIP 57233 has 118 at 1 per square mile. That difference in population size and density alone reshapes how every other metric should be interpreted, a higher-income ZIP with 1,200 residents behaves very differently from one with 45,000.

On income and education, ZIP 57221 reports a median household income of $73,988 against $82,917 in ZIP 57233, with per-capita income of $42,426 vs $18,478. The share of adults holding a bachelor's degree or higher is 17.2% in 57221 and 5.2% in 57233. Poverty rate reads 16.9% vs 0.0%, and unemployment 0.6% vs 0.0% - these four fields alone drive most of the difference in the scorecard grades you will see for each ZIP.

Housing separates these two ZIPs further: median home value sits at $227,100 in 57221 versus - in 57233, with median rent of $925 and - per month respectively. Homeownership rate is 77.7% vs 86.0%. When reading the comparison table below, focus on paired metrics rather than single winners, a ZIP with lower home values and lower income is not strictly "worse" if rent-to-income ratios and commute times land in the same zone. Every value is pulled from the exact same ACS table so the two columns are genuinely comparable.

Compare different ZIP codes:

vs
Metric
57221
Bryant, SD
57233
Erwin, SD
Population 808 118
Median Household Income $73,988 $82,917
Per Capita Income $42,426 $18,478
Median Age 26.8 15.4
Bachelor's Degree or Higher 17.2% 5.2%
Poverty Rate 16.9% 0.0%
Unemployment Rate 0.6% 0.0%
Median Home Value $227,100 -
Median Rent (monthly) $925 -
Homeownership Rate 77.7% 86.0%
Population Density (per sq mi) 3 1

Values highlighted in green indicate the better metric where applicable. Source: U.S. Census Bureau ACS 2023.

Full Profile
57221
Bryant, SD
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Full Profile
57233
Erwin, SD
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What are common questions about this comparison?

How do ZIP codes 57221 and 57233 compare?
ZIP 57221 (Bryant, SD) has a population of 808 and a median household income of $73,988. ZIP 57233 (Erwin, SD) has a population of 118 and a median household income of $82,917.
Which ZIP code has higher income, 57221 or 57233?
ZIP 57233 (Erwin, SD) has a higher median household income of $82,917 compared to $73,988 for ZIP 57221.
How do I compare two ZIP codes on PlainZIP?
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All data sourced from the U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023).

PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.

Data sourced from official U.S. Census ACS and HUD-USPS ZIP crosswalk data. See our methodology for details. Retrieved and formatted by PlainZIP Editorial.