Groton, SD 57445 ZIP Code Profile

Related Place Profiles:
Groton, SD | James, SD | Putney, SD

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ZIP Code 57445: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Groton, SD 57445

Not Acceptable, USPS
James, SD 57445
Putney, SD 57445

  • ZIP Code Type: STANDARD
  • County: Brown County
  • Centroid: Latitude 45.452, Longitude -98.101
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes
  • Businesses Addresses: 71
  • PO Box Addresses: 217
  • Residential Addresses: 603
    • Multi-Family Addresses: 13
    • Single Family Addresses: 590

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.


57445 ZIP Code Map

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Groton, SD 57445 Data & Demographics (As of July 1, 2017)


Total Population 2,200
Daytime Population: Workers 711
Daytime Population: Residents 958
Total Daytime Population (TDP) 1,669
Ratio TDP/Total Population1 0.76
Population in Households 2,096
Population in Familes 1,736
Population in Group Qrtrs 104
Population Density2 9
Diversity Index3 9


Median Household Income $62,360
Average Household Income $79,251
Per Capita Income $31,770


Total Housing Units 967 (100%)
Owner Occupied HU 663 (68.6%)
Renter Occupied HU 209 (21.6%)
Vacant Housing Units 95 ( 9.8%)
Median Home Value $134,829
Average Home Value $173,944


Total Households 872
Average Household Size 2.4
Family Households 581
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 0.56% 0.6%
Households 0.72% 0.77%
Families 0.51% 0.61%
Median Household Income   2.32%
Per Capita Income   3.08%

Groton, SD 57445 - Peer Comparisons by Rank and Percentile

The table below compares 57445 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 # 67 82nd
Population Density # 133 64th
Diversity Index # 279 24th
Median Household Income # 40 89th
Per Capita Income # 76 80th

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

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