ZIP Code 63084

63084 is one of Missouri's ZIP codes, delivering to addresses in Union, Franklin County.

City: Union
County: Franklin County
State: Missouri
Prefix: 630xx

Where this code sits

63084 is part of the 630xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Union.

Union Missouri ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 63084 delivers to without sharing its boundary.

ZIP codes nearest 63084

The ZIP codes whose reference points sit closest to 63084.
ZIP code	Distance	Delivers to
ZIP code 63090	6.9 mi	Washington, MO
ZIP code 63089	7.6 mi	Villa Ridge, MO
ZIP code 63013	8.2 mi	Beaufort, MO
ZIP code 63077	8.4 mi	Saint Clair, MO
ZIP code 63055	9.3 mi	Labadie, MO
ZIP code 63039	11 mi	Gray Summit, MO
ZIP code 63342	11 mi	Dutzow, MO
ZIP code 63056	12 mi	Leslie, MO

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 63084, plotted from its record coordinates.

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

Scope ZIP code 63084. 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.