Oacoma, SD 57365 ZIP Code Profile

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Oacoma, SD

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ZIP Code 57365: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Oacoma, SD 57365

  • ZIP Code Type: STANDARD
  • County: Lyman County
  • Centroid: Latitude 43.798, Longitude -99.398
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes
  • Businesses Addresses: 20
  • PO Box Addresses: 164
  • Residential Addresses: 46
    • Multi-Family Addresses: 0
    • Single Family Addresses: 46

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


57365 ZIP Code Map

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Oacoma, SD 57365 Data & Demographics (As of July 1, 2017)


Total Population 477
Daytime Population: Workers 362
Daytime Population: Residents 225
Total Daytime Population (TDP) 587
Ratio TDP/Total Population1 1.23
Population in Households 477
Population in Familes 381
Population in Group Qrtrs 0
Population Density2 75
Diversity Index3 25


Median Household Income $53,548
Average Household Income $62,711
Per Capita Income $28,397


Total Housing Units 249 (100%)
Owner Occupied HU 171 (68.7%)
Renter Occupied HU 45 (18.1%)
Vacant Housing Units 33 (13.3%)
Median Home Value $91,532
Average Home Value $132,018


Total Households 216
Average Household Size 2.21
Family Households 144
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. 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 race 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.


2010-2017 2017-2022
Population 0.78% 0.62%
Households 0.72% 0.55%
Families 0.49% 0.55%
Median Household Income   1.11%
Per Capita Income   2.54%

Oacoma, SD 57365 - Peer Comparisons by Rank and Percentile

The table below compares 57365 to the other 368 ZIP Codes in South Dakota by rank and percentile using July 1, 2017 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 # 222 40th
Population Density # 37 90th
Diversity Index # 91 75th
Median Household Income # 141 62nd
Per Capita Income # 176 52nd

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

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