What city is ZIP code 57439?

ZIP code 57439 is in Ferney, SD (Brown County).

What county is ZIP code 57439 in?

ZIP code 57439 is mostly in Brown County, South Dakota.

How many people live in ZIP code 57439?

About 0 people live in the 57439 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Checked Oct 26, 2026

ZIP Code 57439

Ferney, SD, Brown County

Population

Land area

0.4sq mi

City

Ferney

ZIP 57439 and nearby ZIP codes

Full map

Economy and federal money

Businesses, pandemic loans and political donations

Details

PPP loans

$459K

9 loans

PPP loans in this ZIP

Environment and hazard risk

ZIP 57439, 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

82° / 5°F

24.0 inches of rain a year

Hazards, floods and storm history Check a flood zone

Frequently asked questions

What city is ZIP code 57439?: ZIP code 57439 is in Ferney, SD (Brown County).
What county is ZIP code 57439 in?: ZIP code 57439 is mostly in Brown County, South Dakota.
How many people live in ZIP code 57439?: About 0 people live in the 57439 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.