US Census Data

ZIP 57321 vs ZIP 57331

A side-by-side comparison of ZIP Code 57321 and ZIP Code 57331: population, income, housing, and more.

ZIP 57321 and ZIP 57331 are ZIP Code areas in South Dakota. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

ZIP 57321 has the higher population (399 vs 301 in ZIP 57331). ZIP 57331 has the higher median household income ($111,875 vs $81,786 in ZIP 57321). ZIP 57321 has the higher median home value ($252,000 vs $226,700 in ZIP 57331).

Population, income & housing

ZIP 57321ZIP 57331
Population399301
Median age38.2 yrs49.7 yrs
Median household income$81,786$111,875
Median home value$252,000$226,700
Housing units125144
Homeownership rate100.0%76.0%
Bachelor's degree or higher24.8%10.9%
Unemployment rate0.0%0.0%

Trends (ACS 5-year, 2019–2023)

ZIP 57321ZIP 57331
Population431 → 399 (-7.4%)494 → 301 (-39.1%)
Median household income$63,750 → $81,786 (+28.3%)$74,479 → $111,875 (+50.2%)
Median home value$103,300 → $252,000 (+143.9%)$151,100 → $226,700 (+50.0%)
Median gross rent$515 → $179 (-65.2%)

ZIP 57321

Population
431399
Median household income
$63,750$81,786
Median home value
$103,300$252,000

ZIP 57331

Population
494301
Median household income
$74,479$111,875
Median home value
$151,100$226,700
Median gross rent
$515$179

Age & race/ethnicity

Age distribution (share)

ZIP 57321ZIP 57331
Under 58.3%10.6%
5 to 1720.6%9.3%
18 to 248.5%1.0%
25 to 347.0%11.3%
35 to 4415.3%9.6%
45 to 548.5%20.3%
55 to 6425.8%21.9%
65 to 745.5%10.3%
75 and over0.5%5.6%

Race & ethnicity (share)

ZIP 57321ZIP 57331
White (non-Hispanic)98.7%100.0%
Black or African American1.3%0.0%
American Indian & Alaska Native0.0%0.0%
Asian0.0%0.0%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.0%0.0%
Two or more races0.0%0.0%
Hispanic or Latino0.0%0.0%

Educational attainment (age 25+)

Share of adults 25+

ZIP 57321ZIP 57331
No high school diploma4.4%2.9%
High school graduate34.4%57.1%
Some college or associate's36.4%29.0%
Bachelor's degree18.4%8.4%
Graduate or professional degree6.4%2.5%

Commute to work

How workers get to work (share)

ZIP 57321ZIP 57331
Drove alone59.6%78.1%
Carpooled24.7%5.6%
Public transit0.0%0.0%
Walked1.8%6.9%
Bicycle0.0%0.0%
Worked from home13.9%9.4%
Other means0.0%0.0%

Housing

Units in structure (share)

ZIP 57321ZIP 57331
1-unit, detached96.0%90.3%
1-unit, attached0.0%0.0%
2 to 4 units0.0%4.9%
5 to 19 units0.0%0.0%
20 or more units0.0%0.0%
Mobile home & other4.0%4.9%

Poverty & households

ZIP 57321ZIP 57331
Poverty rate7.6%5.0%
Average household size3.992.33
Mean commute (minutes)2222
Median year structure built19501987

Full profiles

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