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 Low-density area
- $78,646
- Median income Near-median income area
- $212,200
- Median home value Near-median home value
- 24.8%
- Bachelor's or higher Near-average bachelor's attainment
National ZIP placement
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 average South Dakota ZIP), while per-capita income is $41,058. The poverty rate is 8.8%, with unemployment at 0.0%; those measures add context to the income figure. Median home value is $212,200 (11% above the average South Dakota ZIP) and median rent is $725; 86.7% of occupied homes are owner-occupied.
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 -. No nearby ZIP peer set is available for this delivery area, so the South Dakota and national benchmarks above are the appropriate context for 57231.
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 ZIP avg
$41,058
Per Capita Income
8.8%
Poverty Rate
0.0%
Unemployment Rate
How ZIP 57231 ranks among South Dakota ZIPs
De Smet, SD household income vs. every South Dakota ZIP code
Median household income among 337 reporting South Dakota ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$78,646 Top 41% higher than 59% of 337 South Dakota ZIPs
Each bar is a $20K-wide band; taller bars hold more South Dakota 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?
Housing stock: occupied vs vacant
877housing units
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 ZIP avg
$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.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 57231, both outside SD so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (1,695 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Kingsbury County
Related Areas
Frequently Asked Questions
What county is ZIP code 57231 in?
ZIP code 57231 (De Smet) is located in Kingsbury County, South Dakota. Kingsbury County contains multiple ZIP codes, see the full list at /counties/kingsbury-sd.
What is the population of ZIP code 57231?
ZIP code 57231 in De Smet, SD has a population of 1,695 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 57231?
The median household income in ZIP 57231 is $78,646, which is 3% above the national average of $76,288.
What is the average home value in ZIP 57231?
The median home value in ZIP 57231 is $212,200, which is 24% below the national average of $278,155.
What is the demographic makeup of ZIP 57231?
The largest racial group in ZIP 57231 is White at 96.0%. Hispanic or Latino residents make up 0.1% of the population.
How many businesses are in ZIP code 57231?
ZIP code 57231 has 77 business establishments employing approximately 720 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 57231?
The top industries by establishment count in ZIP 57231 are: Retail trade (14), Construction (11), Other services (except public administration) (10). There are 10 industry sectors represented in total.
What is the education level in ZIP code 57231?
In ZIP code 57231, 68.1% of residents aged 25+ have a high school diploma or higher, and 24.8% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 57231?
In ZIP code 57231, approximately 86.7% of occupied housing units are owner-occupied and 13.3% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 57231?
The poverty rate in ZIP code 57231 is 8.8% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
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What to do with ZIP 57231's numbers, next.
- See how ZIP 57231 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where De Smet, SD ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
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ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.