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Sumner Iowa ZIP Codes

Sumner holds a single ZIP code.

Every ZIP code in Sumner

The complete list of Sumner, Iowa ZIP codes with the county each falls in.
ZIP codeCounty
50674Bremer County

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Sumner codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Sumner. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every Sumner ZIP code begins 506. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 70 ZIP codes, so Sumner accounts for 1% of it.

Every Iowa ZIP prefix and the region it covers →

Area codes covering Sumner

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Sumner occupies.

Sumner Iowa area codes in full →

Where Sumner's ZIP codes sit

Each point is one Sumner ZIP code, plotted from its record coordinates.
  • Reference points and footprint
  • Not an official NANPA boundary
  • Not a USPS delivery area

Cities near Sumner

The closest places to Sumner with their own ZIP code list, nearest first.
CityDistanceZIP codes
Westgate Iowa ZIP codes7.6 mi1 ZIP code
Tripoli Iowa ZIP codes8.6 mi1 ZIP code
Fredericksburg Iowa ZIP codes9.4 mi1 ZIP code
Hawkeye Iowa ZIP codes9.6 mi1 ZIP code
Randalia Iowa ZIP codes11 mi1 ZIP code
Frederika Iowa ZIP codes11 mi1 ZIP code
Readlyn Iowa ZIP codes12 mi1 ZIP code
Maynard Iowa ZIP codes12 mi1 ZIP code

Straight-line distance between place reference points, not driving distance.