Trail City, SD 57657 ZIP Code Profile


ZIP Code 57657: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Trail City, SD 57657

  • ZIP Code Type: STANDARD
  • County: Corson County
  • Centroid: Latitude 45.414, Longitude -100.705
  • Time Zone: Mountain Time Zone (UTC -7 hours)
  • Observes DST: Yes

ZIP Code 57657 has segments in 2 Counties (Corson, Dewey).

  • Businesses Addresses: 6
  • PO Box Addresses: 25
  • Residential Addresses: 40
    • Multi-Family Addresses: 0
    • Single Family Addresses: 40

The ZIP Code maps and database are updated 4 times per year.
Database updated: May 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.


57657 ZIP Code Map

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Trail City, SD 57657 Data & Demographics (As of July 1, 2017)


Total Population 113
Daytime Population: Workers 9
Daytime Population: Residents 72
Total Daytime Population (TDP) 81
Ratio TDP/Total Population1 0.72
Population in Households 113
Population in Familes 96
Population in Group Qrtrs 0
Population Density2 1
Diversity Index3 56


Median Household Income $31,395
Average Household Income $57,355
Per Capita Income $22,840


Total Housing Units 49 (100%)
Owner Occupied HU 29 (59.2%)
Renter Occupied HU 16 (32.7%)
Vacant Housing Units 4 ( 8.2%)
Median Home Value $75,000
Average Home Value $117,241


Total Households 45
Average Household Size 2.51
Family Households 33
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 0.76% 0.53%
Households 0.96% 0.44%
Families 0.87% 0.0%
Median Household Income   7.07%
Per Capita Income   3.77%

Trail City, SD 57657 - Peer Comparisons by Rank and Percentile

The table below compares 57657 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 # 340 8th
Population Density # 348 6th
Diversity Index # 17 96th
Median Household Income # 351 5th
Per Capita Income # 310 16th

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

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