ZIP Code 45766

45766 is one of Ohio's ZIP codes, delivering to addresses in New Marshfield, Athens County.

City: New Marshfield
County: Athens County
State: Ohio
Prefix: 457xx

Where this code sits

45766 is part of the 457xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to New Marshfield.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 45766 delivers to without sharing its boundary.

ZIP codes nearest 45766

The ZIP codes whose reference points sit closest to 45766.
ZIP code	Distance	Delivers to
ZIP code 45717	3.9 mi	Carbondale, OH
ZIP code 45780	7.3 mi	The Plains, OH
ZIP code 45698	7.9 mi	Zaleski, OH
ZIP code 45710	8.1 mi	Albany, OH
ZIP code 45654	8.3 mi	New Plymouth, OH
ZIP code 45701	8.4 mi	Athens, OH
ZIP code 45719	8.7 mi	Chauncey, OH
ZIP code 45764	9.3 mi	Nelsonville, OH

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 45766, plotted from its record coordinates.

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

Scope ZIP code 45766. 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.