ZIP Code 43105

43105 is one of Ohio's ZIP codes, delivering to addresses in Baltimore, Fairfield County.

City: Baltimore
County: Fairfield County
State: Ohio
Prefix: 431xx

Where this code sits

43105 is part of the 431xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Baltimore.

Baltimore Ohio ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 43105 delivers to without sharing its boundary.

ZIP codes nearest 43105

The ZIP codes whose reference points sit closest to 43105.
ZIP code	Distance	Delivers to
ZIP code 43157	4.4 mi	Thurston, OH
ZIP code 43046	5.6 mi	Millersport, OH
ZIP code 43112	6.5 mi	Carroll, OH
ZIP code 43033	6.8 mi	Kirkersville, OH
ZIP code 43148	7.0 mi	Pleasantville, OH
ZIP code 43018	7.1 mi	Etna, OH
ZIP code 43147	7.6 mi	Pickerington, OH
ZIP code 43025	9.3 mi	Hebron, 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 43105, plotted from its record coordinates.

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

Scope ZIP code 43105. 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.