ZIP Code 51540

51540 is one of Iowa's ZIP codes, delivering to addresses in Hastings, Mills County.

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

Where this code sits

51540 is part of the 515xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Hastings.

Hastings Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 51540 delivers to without sharing its boundary.

712 Area code 712

ZIP codes nearest 51540

The ZIP codes whose reference points sit closest to 51540.
ZIP code	Distance	Delivers to
ZIP code 51551	4.4 mi	Malvern, IA
ZIP code 51533	4.8 mi	Emerson, IA
ZIP code 51541	8.1 mi	Henderson, IA
ZIP code 51571	9.5 mi	Silver City, IA
ZIP code 51649	10 mi	Randolph, IA
ZIP code 51645	11 mi	Imogene, IA
ZIP code 51653	12 mi	Tabor, IA
ZIP code 51534	13 mi	Glenwood, 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 51540, plotted from its record coordinates.

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

Scope ZIP code 51540. 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.