What city is ZIP code 57426?

ZIP code 57426 is in Westport, SD (Brown County).

What county is ZIP code 57426 in?

ZIP code 57426 is mostly in Brown County, South Dakota.

How many people live in ZIP code 57426?

About 42 people live in the 57426 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Checked Oct 26, 2026

ZIP Code 57426

Westport, SD, Brown County

Population

Land area

6sq mi

People per sq mi

City

Westport

ZIP 57426 and nearby ZIP codes

Full map

ZIP 57426 at a glance

ZIP 57426 (Westport) is 42% less dense than South Dakota as a whole.

Economy and federal money

Businesses, pandemic loans and political donations

Details

PPP loans

$185K

7 loans

PPP loans in this ZIP

Environment and hazard risk

ZIP 57426, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively Low

Top: winter weather

Storm events since 1996

1,202

Countywide, mostly thunderstorm wind

Flood insurance policies

114

0.7% of homes, county

July high / Jan low

83° / 0°F

22.5 inches of rain a year

Hazards, floods and storm history Check a flood zone

Frequently asked questions

What city is ZIP code 57426?: ZIP code 57426 is in Westport, SD (Brown County).
What county is ZIP code 57426 in?: ZIP code 57426 is mostly in Brown County, South Dakota.
How many people live in ZIP code 57426?: About 42 people live in the 57426 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.