ZIP Code 57775

57775 is one of South Dakota's ZIP codes, delivering to addresses in Quinn, Pennington County.

City: Quinn
County: Pennington County
State: South Dakota
Prefix: 577xx

Where this code sits

57775 is part of the 577xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Quinn.

Quinn South Dakota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 57775 delivers to without sharing its boundary.

605 Area code 605

ZIP codes nearest 57775

The ZIP codes whose reference points sit closest to 57775.
ZIP code	Distance	Delivers to
ZIP code 57790	13 mi	Wall, SD
ZIP code 57567	17 mi	Philip, SD
ZIP code 57791	22 mi	Wasta, SD
ZIP code 57750	26 mi	Interior, SD
ZIP code 57553	26 mi	Milesville, SD
ZIP code 57767	27 mi	Owanka, SD
ZIP code 57543	29 mi	Kadoka, SD
ZIP code 57748	33 mi	Howes, 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 57775, plotted from its record coordinates.

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

Scope ZIP code 57775. 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.