ZIP Code 57374

57374 is one of South Dakota's ZIP codes, delivering to addresses in Spencer, McCook County.

City: Spencer
County: McCook County
State: South Dakota
Prefix: 573xx

Where this code sits

57374 is part of the 573xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Spencer.

Spencer South Dakota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 57374 delivers to without sharing its boundary.

605 Area code 605

ZIP codes nearest 57374

The ZIP codes whose reference points sit closest to 57374.
ZIP code	Distance	Delivers to
ZIP code 57321	9.4 mi	Canova, SD
ZIP code 57311	10 mi	Alexandria, SD
ZIP code 57058	11 mi	Salem, SD
ZIP code 57332	13 mi	Emery, SD
ZIP code 57340	14 mi	Fulton, SD
ZIP code 57319	16 mi	Bridgewater, SD
ZIP code 57337	19 mi	Fedora, SD
ZIP code 57012	19 mi	Canistota, 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 57374, plotted from its record coordinates.

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

Scope ZIP code 57374. 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.