ZIP Code 50674

50674 is one of Iowa's ZIP codes, delivering to addresses in Sumner, Bremer County.

City: Sumner
County: Bremer County
State: Iowa
Prefix: 506xx

Where this code sits

50674 is part of the 506xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Sumner.

Sumner Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 50674 delivers to without sharing its boundary.

ZIP codes nearest 50674

The ZIP codes whose reference points sit closest to 50674.
ZIP code	Distance	Delivers to
ZIP code 50681	6.8 mi	Westgate, IA
ZIP code 50676	7.8 mi	Tripoli, IA
ZIP code 50630	9.1 mi	Fredericksburg, IA
ZIP code 50631	9.9 mi	Frederika, IA
ZIP code 50664	10 mi	Oran, IA
ZIP code 52147	11 mi	Hawkeye, IA
ZIP code 50668	11 mi	Readlyn, IA
ZIP code 52164	12 mi	Randalia, 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 50674, plotted from its record coordinates.

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

Scope ZIP code 50674. 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.