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zipcodes.pro — CITY/SD/SUMMIT

Summit ZIP code, South Dakota

The ZIP code for Summit, SD is 57266, and its area code is 605.

USPS city name
1 ZIP code
Population
359
Area code
605

Summit in numbers

About 359 people live in Summit, in 122 households. The median household income is $60,000 a year, 20% below the South Dakota median of $75,081 (US: $80,734). The median owner-occupied home is valued at $98,100 (62% below the South Dakota median), and median gross rent is $763 a month. The median age is 29.5; 4.9% of adults 25 and over hold a bachelor's degree or higher (31.9% across South Dakota); the average commute takes 26 minutes.

Population359Summit359
Households122Summit122
Median age29.5Summit29.5South Dakota38.0US 38.9
Median household income$60,000Summit$60,000South Dakota$75,081US $80,734
Median home value$98,100Summit$98,100South Dakota$257,400US $332,700
Median gross rent$763Summit$763South Dakota$946US $1,413
Bachelor's degree or higher4.9%Summit4.9%South Dakota31.9%US 35.7%
Mean commute26.2 minSummit26.2 minSouth Dakota17.8 minUS 26.4 min
Population density655 / sq miSummit655 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Summit town. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Summit

ZIP codes with the USPS city name Summit
ZIP City Type Population Median income Median home
57266 Summit , SD Standard 626 $72,500 $162,500

Map of Summit ZIP codes

57266

The ZIP codes of Summit, SD, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Summit

The nearest larger towns are Wilmot (381 people, 11 mi), Agency Village (980 people, 19 mi) and Milbank (3,525 people, 21 mi).

Towns near Summit
TownPopulationDistance
Milbank 3,525 20.6 mi
Sisseton 2,670 24.7 mi
Watertown 23,044 28.0 mi

More nearby: every ZIP code in Grant County · South Dakota ZIP codes

Cite this page

zipcodes.pro. “Summit, SD ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/sd/summit

Underlying data is public domain or openly licensed — sources, vintages and licences.