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Hamilton Iowa ZIP Codes

Hamilton holds a single ZIP code.

Every ZIP code in Hamilton

The complete list of Hamilton, Iowa ZIP codes with the county each falls in.
ZIP codeCounty
50116Marion 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Hamilton codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Hamilton. 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 Hamilton ZIP code begins 501. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 69 ZIP codes, so Hamilton accounts for 1% of it.

Every Iowa ZIP prefix and the region it covers →

Area codes covering Hamilton

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

Hamilton Iowa area codes in full →

Where Hamilton's ZIP codes sit

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

Cities near Hamilton

The closest places to Hamilton with their own ZIP code list, nearest first.
CityDistanceZIP codes
Lovilia Iowa ZIP codes2.5 mi1 ZIP code
Bussey Iowa ZIP codes2.6 mi1 ZIP code
Harvey Iowa ZIP codes10 mi1 ZIP code
Albia Iowa ZIP codes11 mi1 ZIP code
Leighton Iowa ZIP codes13 mi1 ZIP code
Beacon Iowa ZIP codes14 mi1 ZIP code
Eddyville Iowa ZIP codes14 mi1 ZIP code
Knoxville Iowa ZIP codes15 mi1 ZIP code

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