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zipcodes.pro — CITY/SD/WATERTOWN

Watertown ZIP code, South Dakota

The ZIP code for Watertown, SD is 57201, and its area code is 605.

USPS city name
1 ZIP code
Population
23,044
Area code
605

Watertown in numbers

About 23,044 people live in Watertown, in 10,394 households, the 5th-largest of South Dakota's 439 census places. The median household income is $69,600 a year, 7% below the South Dakota median of $75,081 (US: $80,734). The median owner-occupied home is valued at $229,400 (11% below the South Dakota median), and median gross rent is $942 a month. The median age is 39.5; 21.6% of adults 25 and over hold a bachelor's degree or higher (31.9% across South Dakota); the average commute takes 13 minutes.

Population23,044Watertown23,044
Households10,394Watertown10,394
Median age39.5Watertown39.5South Dakota38.0US 38.9
Median household income$69,600Watertown$69,600South Dakota$75,081US $80,734
Median home value$229,400Watertown$229,400South Dakota$257,400US $332,700
Median gross rent$942Watertown$942South Dakota$946US $1,413
Bachelor's degree or higher21.6%Watertown21.6%South Dakota31.9%US 35.7%
Mean commute12.6 minWatertown12.6 minSouth Dakota17.8 minUS 26.4 min
Population density1,250 / sq miWatertown1,250 / sq mi

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

ZIP codes addressed as Watertown

ZIP codes with the USPS city name Watertown
ZIP City Type Population Median income Median home
57201 Watertown , SD Standard 26,781 $72,878 $242,700

Map of Watertown ZIP codes

57201

The ZIP codes of Watertown, 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 Watertown

The nearest larger towns are Brookings (23,948 people, 46 mi), Aberdeen (28,189 people, 75 mi) and Sioux Falls (201,469 people, 97 mi).

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

Cite this page

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

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