ZIP Code 57433

57433 is one of South Dakota's ZIP codes, delivering to addresses in Columbia, Brown County.

City: Columbia
County: Brown County
State: South Dakota
Prefix: 574xx

Where this code sits

57433 is part of the 574xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Columbia.

Columbia South Dakota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 57433 delivers to without sharing its boundary.

605 Area code 605

ZIP codes nearest 57433

The ZIP codes whose reference points sit closest to 57433.
ZIP code	Distance	Delivers to
ZIP code 57402	4.6 mi	Aberdeen, SD
ZIP code 57426	10 mi	Barnard, SD
ZIP code 57481	13 mi	Westport, SD
ZIP code 57432	13 mi	Claremont, SD
ZIP code 57427	14 mi	Bath, SD
ZIP code 57449	15 mi	Houghton, SD
ZIP code 57401	15 mi	Aberdeen, SD
ZIP code 57446	16 mi	Hecla, 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 57433, plotted from its record coordinates.

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

Scope ZIP code 57433. 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.