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Haverhill Iowa ZIP Codes

Haverhill holds a single ZIP code.

Every ZIP code in Haverhill

The complete list of Haverhill, Iowa ZIP codes with the county each falls in.
ZIP codeCounty
50120Marshall 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Haverhill codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Haverhill. 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 Haverhill 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 Haverhill accounts for 1% of it.

Every Iowa ZIP prefix and the region it covers →

Area codes covering Haverhill

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 Haverhill occupies.

Haverhill Iowa area codes in full →

Where Haverhill's ZIP codes sit

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

Cities near Haverhill

The closest places to Haverhill with their own ZIP code list, nearest first.
CityDistanceZIP codes
Laurel Iowa ZIP codes4.6 mi1 ZIP code
Ferguson Iowa ZIP codes5.0 mi1 ZIP code
Marshalltown Iowa ZIP codes6.8 mi1 ZIP code
Melbourne Iowa ZIP codes7.3 mi1 ZIP code
Gilman Iowa ZIP codes10 mi1 ZIP code
Le Grand Iowa ZIP codes11 mi1 ZIP code
Rhodes Iowa ZIP codes12 mi1 ZIP code
State Center Iowa ZIP codes12 mi1 ZIP code

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