ZIP Code 57340

57340 is one of South Dakota's ZIP codes, delivering to addresses in Fulton, Hanson County.

City: Fulton
County: Hanson County
State: South Dakota
Prefix: 573xx

Where this code sits

57340 is part of the 573xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Fulton.

Fulton South Dakota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 57340 delivers to without sharing its boundary.

605 Area code 605

ZIP codes nearest 57340

The ZIP codes whose reference points sit closest to 57340.
ZIP code	Distance	Delivers to
ZIP code 57311	8.5 mi	Alexandria, SD
ZIP code 57301	8.6 mi	Mitchell, SD
ZIP code 57374	14 mi	Spencer, SD
ZIP code 57334	16 mi	Ethan, SD
ZIP code 57337	16 mi	Fedora, SD
ZIP code 57332	17 mi	Emery, SD
ZIP code 57359	18 mi	Letcher, SD
ZIP code 57321	19 mi	Canova, SD

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 57340, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 57340. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.