ZIP Code 57473

57473 is one of South Dakota's ZIP codes, delivering to addresses in Seneca, Faulk County.

City: Seneca
County: Faulk County
State: South Dakota
Prefix: 574xx

Where this code sits

57473 is part of the 574xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Seneca.

Seneca South Dakota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 57473 delivers to without sharing its boundary.

605 Area code 605

ZIP codes nearest 57473

The ZIP codes whose reference points sit closest to 57473.
ZIP code	Distance	Delivers to
ZIP code 57466	12 mi	Onaka, SD
ZIP code 57475	13 mi	Tolstoy, SD
ZIP code 57455	14 mi	Lebanon, SD
ZIP code 57438	14 mi	Faulkton, SD
ZIP code 57450	21 mi	Hoven, SD
ZIP code 57467	22 mi	Orient, SD
ZIP code 57442	25 mi	Gettysburg, SD
ZIP code 57435	27 mi	Cresbard, 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 57473, plotted from its record coordinates.

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

Scope ZIP code 57473. 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.