De Smet, SD · standard
ZIP Code 57231
Kingsbury County, South Dakota - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 1,695
- 2/sq mi
- $78,646
- Median income
- $212,200
- Median home value
- 24.8%
- Bachelor's or higher
The verdict
De Smet pairs an above-median household income with below-median home values, in a rural, homeowner-dominated area.
- Top 40%
- household income, US ZIPs
- 47th pct
- home value, US ZIPs
- 2
- people per sq mi
- 87%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 57231 against every reporting US ZIP.
ZIP code 57231 covers 706.3 square miles in De Smet, Kingsbury County, South Dakota (a standard USPS delivery area), with a modest 1,695 residents on file, a density of 2 people per square mile, in the Chicago time zone.
ZIP 57231 lands in the middle-income range, with a median household income of $78,646 (3% above the South Dakota average), while per-capita income is $41,058. Local economic indicators show a 8.8% poverty rate alongside 0.0% unemployment. Median home value sits at $212,200 (11% above the state average), median rent at $725 a month, and owner-occupancy at 86.7%.
Educational attainment sits below the national norm: 24.8% of adults hold a bachelor's degree or higher, the median age is 44.2, and the average commute is -. South Dakota and national benchmarks, shown above, are the best way to contextualize 57231, not the raw numbers alone.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Top industries in ZIP 57231
Top 5 sectors by establishment count in De Smet, SD
Which industries have the most business establishments in ZIP 57231.
- Retail trade
Retail trade
14 establishments
- Construction
Construction
11 establishments
- Other services (except public administration)
Other services (except public administration)
10 establishments
- Health care and social assistance
Health care and social assistance
9 establishments
- Finance and insurance
Finance and insurance
7 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 57231, De Smet, SD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
1,695
Population
706.3
Area (sq mi)
2
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 57231?
44.2
Median Age
48.7%
Male
51.3%
Female
0.3%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$78,646
Median Household Income
+3% vs state
$41,058
Per Capita Income
8.8%
Poverty Rate
0.0%
Unemployment Rate
How ZIP 57231 ranks nationally
De Smet, SD household income vs. every US ZIP code
Median household income, the full national distribution, with this ZIP marked
$78,646 Top 40% higher than 60% of 30,318 US ZIPs
Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
877
Total Housing Units
721
Occupied Units
156
Vacant Units
2.32
Avg Household Size
Occupancy Type
$212,200
Median Home Value
+11% vs state
$725
Median Rent
1967
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 77 business establishments in ZIP 57231, employing approximately 720 people with a combined annual payroll of $37,019,000.
77
Businesses
720
Employees
$37.0M
Annual Payroll
10
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Retail trade | 14 | 18.2% |
| Construction | 11 | 14.3% |
| Other services (except public administration) | 10 | 13.0% |
| Health care and social assistance | 9 | 11.7% |
| Finance and insurance | 7 | 9.1% |
| Manufacturing | 6 | 7.8% |
| Arts, entertainment, and recreation | 4 | 5.2% |
| Wholesale trade | 3 | 3.9% |
| Transportation and warehousing | 3 | 3.9% |
| Accommodation and food services | 3 | 3.9% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
More ZIP Codes in Kingsbury County
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Frequently Asked Questions
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Read our methodology to see how this data is sourced, computed, and verified.