ZIP Code 74856

74856 is one of Oklahoma's ZIP codes, delivering to addresses in Mill Creek, Johnston County.

City: Mill Creek
County: Johnston County
State: Oklahoma
Prefix: 748xx

Where this code sits

74856 is part of the 748xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Mill Creek.

Mill Creek Oklahoma ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 74856 delivers to without sharing its boundary.

580 Area code 580

ZIP codes nearest 74856

The ZIP codes whose reference points sit closest to 74856.
ZIP code	Distance	Delivers to
ZIP code 73455	5.0 mi	Ravia, OK
ZIP code 73460	7.6 mi	Tishomingo, OK
ZIP code 73447	9.7 mi	Mannsville, OK
ZIP code 74836	12 mi	Connerville, OK
ZIP code 73436	14 mi	Gene Autry, OK
ZIP code 73446	16 mi	Madill, OK
ZIP code 73450	16 mi	Milburn, OK
ZIP code 73032	16 mi	Dougherty, OK

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 74856, plotted from its record coordinates.

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

Scope ZIP code 74856. 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.