ZIP Code 51561

51561 is one of Iowa's ZIP codes, delivering to addresses in Pacific Junction, Mills County.

City: Pacific Junction
County: Mills County
State: Iowa
Prefix: 515xx

Where this code sits

51561 is part of the 515xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Pacific Junction.

Pacific Junction Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 51561 delivers to without sharing its boundary.

712 Area code 712

ZIP codes nearest 51561

The ZIP codes whose reference points sit closest to 51561.
ZIP code	Distance	Delivers to
ZIP code 51534	3.7 mi	Glenwood, IA
ZIP code 68048	6.0 mi	Plattsmouth, NE
ZIP code 68123	9.3 mi	Bellevue, NE
ZIP code 51554	9.6 mi	Mineola, IA
ZIP code 68409	9.6 mi	Murray, NE
ZIP code 68005	10 mi	Bellevue, NE
ZIP code 51571	11 mi	Silver City, IA
ZIP code 51653	11 mi	Tabor, 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 51561, plotted from its record coordinates.

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

Scope ZIP code 51561. 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.