ZIP Code 57763

57763 is one of South Dakota's ZIP codes, delivering to addresses in Oelrichs, Fall River County.

City: Oelrichs
County: Fall River County
State: South Dakota
Prefix: 577xx

Where this code sits

57763 is part of the 577xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Oelrichs.

Oelrichs South Dakota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 57763 delivers to without sharing its boundary.

605 Area code 605

ZIP codes nearest 57763

The ZIP codes whose reference points sit closest to 57763.
ZIP code	Distance	Delivers to
ZIP code 57782	10 mi	Smithwick, SD
ZIP code 57766	16 mi	Oral, SD
ZIP code 57747	23 mi	Hot Springs, SD
ZIP code 57722	24 mi	Buffalo Gap, SD
ZIP code 57764	24 mi	Oglala, SD
ZIP code 69337	26 mi	Chadron, NE
ZIP code 69367	28 mi	Whitney, NE
ZIP code 57770	31 mi	Pine Ridge, 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 57763, plotted from its record coordinates.

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

Scope ZIP code 57763. 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.