US > South Dakota > Kingsbury County > Iroquois, SD 57353

57353 ZIP Code Profile, Map, Data & Demographics

Related Place Profiles:
Bancroft, SD | Esmond, SD | Iroquois, SD | Manchester, SD
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ZIP Code 57353: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Iroquois, SD 57353

Acceptable Alternative
Bancroft, SD 57353

Not Acceptable, USPS
Esmond, SD 57353
Manchester, SD 57353

  • ZIP Code Type: STANDARD
  • County: Kingsbury County
  • Centroid: Latitude 44.365, Longitude -97.849
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes

ZIP Code 57353 has segments in 3 Counties (Beadle, Clark, Kingsbury).

  • Businesses Addresses: 34
  • PO Box Addresses: 15
  • Residential Addresses: 299
    • Multi-Family Addresses: 8
    • Single Family Addresses: 291

The ZIP Code maps and database are updated 4 times per year.
Database updated: October 1, 2025, Maps updated: May 1, 2024.

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Iroquois, SD 57353 Data & Demographics (As of July 1, 2025)

POPULATION

Total Population 830 (100%)
Population in Households 730 (88.0%)
Population in Families 644 (77.6%)
Population in Group Quarters1 100 (12.0%)
Population Density 3
Diversity Index2 17
 
 

INCOME

Median Household Income $64,641
Average Household Income $84,784
% of Income for Mortgage4 26%
Per Capita Income $30,418
Wealth Index5 64
Socioeconomic Status Index6 Moderate (52.5)
 

HOUSING

Total HU (Housing Units) 334 (100%)
Owner Occupied HU 243 (72.8%)
Renter Occupied HU 38 (11.4%)
Vacant Housing Units 53 (15.9%)
Median Home Value $270,238
Average Home Value $312,634
Housing Affordability Index3 85
 

HOUSEHOLDS

Total Households 281
Average Household Size 2.60
Family Households 205
Average Family Size 3.00
NOTES
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
  6. The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

GROWTH RATE / YEAR

 2020-2025 2025-2030
Population -0.59% -0.29%
Households -0.47% -0.21%
Families   0.39%
Median Household Income   1.13%
Per Capita Income   1.34%
Owner Occupied HU   -0.41%

Iroquois, SD 57353 - Peer Comparisons by Rank and Percentile

The table below compares 57353 to the other 371 ZIP Codes in South Dakota by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 159 57th
Population Density # 259 32nd
Median Household Income # 272 27th
Housing Affordability Index # 105 28th
Per Capita Income # 294 21st
Diversity Index # 253 32nd

Additional comparisons and rankings can be made with a VERY EASY TO USE South Dakota Census Data Comparison Tool.


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