ZIP Code 52308

52308 is one of Iowa's ZIP codes, delivering to addresses in Millersburg, Iowa County.

City: Millersburg
County: Iowa County
State: Iowa
Prefix: 523xx

Where this code sits

52308 is part of the 523xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Millersburg.

Millersburg Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 52308 delivers to without sharing its boundary.

319 Area code 319

ZIP codes nearest 52308

The ZIP codes whose reference points sit closest to 52308.
ZIP code	Distance	Delivers to
ZIP code 52316	5.0 mi	North English, IA
ZIP code 52325	8.0 mi	Parnell, IA
ZIP code 52361	8.4 mi	Williamsburg, IA
ZIP code 50136	8.8 mi	Keswick, IA
ZIP code 52355	9.5 mi	Webster, IA
ZIP code 52335	9.6 mi	South English, IA
ZIP code 52222	11 mi	Deep River, IA
ZIP code 52221	11 mi	Guernsey, IA

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 52308, plotted from its record coordinates.

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

Scope ZIP code 52308. 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.