ZIP Code 57016

57016 is one of South Dakota's ZIP codes, delivering to addresses in Chester, Lake County.

City: Chester
County: Lake County
State: South Dakota
Prefix: 570xx

Where this code sits

57016 is part of the 570xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Chester.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 57016 delivers to without sharing its boundary.

605 Area code 605

ZIP codes nearest 57016

The ZIP codes whose reference points sit closest to 57016.
ZIP code	Distance	Delivers to
ZIP code 57075	6.1 mi	Wentworth, SD
ZIP code 57018	7.2 mi	Colton, SD
ZIP code 57017	8.8 mi	Colman, SD
ZIP code 57042	10 mi	Madison, SD
ZIP code 57057	12 mi	Rutland, SD
ZIP code 57041	13 mi	Lyons, SD
ZIP code 57022	14 mi	Dell Rapids, SD
ZIP code 57003	16 mi	Baltic, 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 57016, plotted from its record coordinates.

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

Scope ZIP code 57016. 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.