ZIP Code 23170

23170 is one of Virginia's ZIP codes, delivering to addresses in Trevilians, Louisa County.

City: Trevilians
County: Louisa County
State: Virginia
Prefix: 231xx

Where this code sits

23170 is part of the 231xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Trevilians.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 23170 delivers to without sharing its boundary.

ZIP codes nearest 23170

The ZIP codes whose reference points sit closest to 23170.
ZIP code	Distance	Delivers to
ZIP code 23093	3.4 mi	Louisa, VA
ZIP code 22942	10 mi	Gordonsville, VA
ZIP code 23084	11 mi	Kents Store, VA
ZIP code 23117	11 mi	Mineral, VA
ZIP code 22974	12 mi	Troy, VA
ZIP code 22960	12 mi	Orange, VA
ZIP code 22957	13 mi	Montpelier Station, VA
ZIP code 22972	14 mi	Somerset, VA

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 23170, plotted from its record coordinates.

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

Scope ZIP code 23170. 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.