ZIP Code 50528

50528 is one of Iowa's ZIP codes, delivering to addresses in Cylinder, Palo Alto County.

City: Cylinder
County: Palo Alto County
State: Iowa
Prefix: 505xx

Where this code sits

50528 is part of the 505xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Cylinder.

Cylinder Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 50528 delivers to without sharing its boundary.

ZIP codes nearest 50528

The ZIP codes whose reference points sit closest to 50528.
ZIP code	Distance	Delivers to
ZIP code 50598	7.5 mi	Whittemore, IA
ZIP code 50559	7.7 mi	Lone Rock, IA
ZIP code 50539	8.3 mi	Fenton, IA
ZIP code 50536	9.1 mi	Emmetsburg, IA
ZIP code 50578	10 mi	Ringsted, IA
ZIP code 51342	12 mi	Graettinger, IA
ZIP code 50597	14 mi	West Bend, IA
ZIP code 50511	15 mi	Algona, 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 50528, plotted from its record coordinates.

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

Scope ZIP code 50528. 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.