ZIP Code 51533

51533 is one of Iowa's ZIP codes, delivering to addresses in Emerson, Mills County.

City: Emerson
County: Mills County
State: Iowa
Prefix: 515xx

Where this code sits

51533 is part of the 515xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Emerson.

Emerson Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 51533 delivers to without sharing its boundary.

712 Area code 712

ZIP codes nearest 51533

The ZIP codes whose reference points sit closest to 51533.
ZIP code	Distance	Delivers to
ZIP code 51540	4.8 mi	Hastings, IA
ZIP code 51541	7.2 mi	Henderson, IA
ZIP code 51551	9.2 mi	Malvern, IA
ZIP code 51566	9.7 mi	Red Oak, IA
ZIP code 51549	11 mi	Macedonia, IA
ZIP code 51645	12 mi	Imogene, IA
ZIP code 51571	13 mi	Silver City, IA
ZIP code 51591	13 mi	Red Oak, 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 51533, plotted from its record coordinates.

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

Scope ZIP code 51533. 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.