ZIP Code 68757

68757 is one of Nebraska's ZIP codes, delivering to addresses in Newcastle, Dixon County.

City: Newcastle
County: Dixon County
State: Nebraska
Prefix: 687xx

Where this code sits

68757 is part of the 687xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Newcastle.

Newcastle Nebraska ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 68757 delivers to without sharing its boundary.

ZIP codes nearest 68757

The ZIP codes whose reference points sit closest to 68757.
ZIP code	Distance	Delivers to
ZIP code 68751	7.4 mi	Maskell, NE
ZIP code 68770	8.8 mi	Ponca, NE
ZIP code 57010	10 mi	Burbank, SD
ZIP code 68710	12 mi	Allen, NE
ZIP code 57069	12 mi	Vermillion, SD
ZIP code 57025	12 mi	Elk Point, SD
ZIP code 68785	13 mi	Waterbury, NE
ZIP code 57038	15 mi	Jefferson, 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 68757, plotted from its record coordinates.

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

Scope ZIP code 68757. 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.