What city is ZIP code 57346?

ZIP code 57346 is in Stephan, SD (Hyde County).

What county is ZIP code 57346 in?

ZIP code 57346 is mostly in Hyde County, South Dakota.

How many people live in ZIP code 57346?

About 13 people live in the 57346 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Checked Oct 26, 2026

ZIP Code 57346

Stephan, SD, Hyde County

Population

Land area

0.3sq mi

People per sq mi

City

Stephan

ZIP 57346 and nearby ZIP codes

Full map

ZIP 57346 at a glance

ZIP 57346 (Stephan) is about 3.9 times as dense as South Dakota as a whole.

Local data for ZIP 57346

Counts from official public data

Schools2

Environment and hazard risk

ZIP 57346, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Very Low

Top: wildfire

Storm events since 1996

530

Countywide, mostly thunderstorm wind

July high / Jan low

85° / 5°F

21.2 inches of rain a year

Hazards, floods and storm history Check a flood zone

Frequently asked questions

What city is ZIP code 57346?: ZIP code 57346 is in Stephan, SD (Hyde County).
What county is ZIP code 57346 in?: ZIP code 57346 is mostly in Hyde County, South Dakota.
How many people live in ZIP code 57346?: About 13 people live in the 57346 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.