57266 ZIP Code Profile, Map, Data & Demographics

Related Place Profiles:
Summit, SD
Advertisement

ZIP Code 57266: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Summit, SD 57266

  • ZIP Code Type: STANDARD
  • County: Roberts County
  • Centroid: Latitude 45.387, Longitude -97.044
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes

ZIP Code 57266 has segments in 2 Counties (Grant, Roberts).

  • Businesses Addresses: 20
  • PO Box Addresses: 107
  • Residential Addresses: 146
    • Multi-Family Addresses: 0
    • Single Family Addresses: 146

The ZIP Code maps and database are updated 4 times per year.
Database updated: March 1, 2026, Maps updated: May 1, 2024.

Advertisement

Summit, SD 57266 Data & Demographics

Source: 2020-2024 American Community Survey 5-Year Estimates

POPULATION

Total Population 626 (100%)
Population Density 5 per sq mi
Diversity Index1 41
 
 

INCOME

Median Household Income $72,500
Per Capita Income $27,829
Median Home Value $162,500
 

HOUSING

Total HU (Housing Units) 254 (100%)
Owner Occupied HU 153 (60.2%)
Renter Occupied HU 53 (20.9%)
Vacant Housing Units 48 (18.9%)
 

HOUSEHOLDS

Total Households 206
Average Household Size 3.04
Family Households 132 (64.1%)
NOTES
  1. The Diversity Index estimates the likelihood that two persons chosen at random from the same area belong to different race or ethnic groups, based on five groups: Hispanic/Latino, Non-Hispanic White, Non-Hispanic Black, Non-Hispanic Asian, and Non-Hispanic Other/Multiracial. A value of 0 indicates the population belongs entirely to one group. Higher values indicate a more evenly mixed population. Calculated from U.S. Census Bureau ACS 5-year estimates (table B03002).

Summit, SD 57266 - Peer Comparisons by Rank and Percentile

The table below compares 57266 to the other 33,772 ZIP Codes in the United States by rank and percentile using 2020-2024 American Community Survey 5-Year Estimates 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 # 25495 25th
Population Density # 30231 10th
Median Household Income # 16690 51st
Per Capita Income # 27086 20th
Diversity Index # 11419 66th

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


Popular Places Near ZIP Code 57266


Use HTL Address Research for a South Dakota Address and get...

Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. 2020-2024 American Community Survey 5-Year Estimates, data includes home values, household income, percentage of homes owned, rented or vacant, etc.



Quick & Easy Ways to...

  1. Get Current Demographic Data for Cities, Towns, and ZIP Codes
  2. View Boundary Maps, for Cities, Towns, and ZIP Codes
  3. Locate Physical, Cultural, and Historical Features

South Dakota Census Data Comparison Tool

Compare South Dakota 2020-2024 American Community Survey 5-Year Estimates Data
Data:
Locations:
Highest or Lowest:
Results:

More Tools and Resources:

  1. For information about schools and school attendance zones, use the HTL Address Tool
  2. Our new HTL Neighborhood Explorer provides lots of detail about any neighborhood.
  3. The new 2-Minute Introduction and Concise Guide to Big Data which will help you make the most effective use of HomeTownLocator Tools.
  4. See the References & Data Sources page for more information about methodology and sources of data.



Advertisement