Timber Lake, SD 57656 ZIP Code Profile

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Timber Lake, SD

ZIP Code 57656: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Timber Lake, SD 57656

  • ZIP Code Type: STANDARD
  • County: Dewey County
  • Centroid: Latitude 45.428, Longitude -101.074
  • Time Zone: Mountain Time Zone (UTC -7 hours)
  • Observes DST: Yes
  • Businesses Addresses: 55
  • PO Box Addresses: 254
  • Residential Addresses: 85
    • Multi-Family Addresses: 0
    • Single Family Addresses: 85

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.


57656 ZIP Code Map

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Timber Lake, SD 57656 Data & Demographics (As of July 1, 2017)


Total Population 941
Daytime Population: Workers 250
Daytime Population: Residents 521
Total Daytime Population (TDP) 771
Ratio TDP/Total Population1 0.82
Population in Households 941
Population in Familes 794
Population in Group Qrtrs 0
Population Density2 2
Diversity Index3 58


Median Household Income $38,784
Average Household Income $65,194
Per Capita Income $24,110


Total Housing Units 402 (100%)
Owner Occupied HU 256 (63.7%)
Renter Occupied HU 92 (22.9%)
Vacant Housing Units 54 (13.4%)
Median Home Value $71,053
Average Home Value $115,332


Total Households 348
Average Household Size 2.7
Family Households 245
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 0.63% 0.5%
Households 0.57% 0.46%
Families 0.46% 0.4%
Median Household Income   6.68%
Per Capita Income   3.97%

Timber Lake, SD 57656 - Peer Comparisons by Rank and Percentile

The table below compares 57656 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 # 148 60th
Population Density # 264 29th
Diversity Index # 12 97th
Median Household Income # 326 12th
Per Capita Income # 287 22nd

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

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