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Fremont Iowa ZIP Codes

Fremont holds a single ZIP code.

Every ZIP code in Fremont

The complete list of Fremont, Iowa ZIP codes with the county each falls in.
ZIP codeCounty
52561Mahaska 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Fremont codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Fremont. 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 Fremont ZIP code begins 525. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 50 ZIP codes, so Fremont accounts for 2% of it.

Every Iowa ZIP prefix and the region it covers →

Area codes covering Fremont

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 Fremont occupies.

Fremont Iowa area codes in full →

Where Fremont's ZIP codes sit

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

Cities near Fremont

The closest places to Fremont with their own ZIP code list, nearest first.
CityDistanceZIP codes
Kirkville Iowa ZIP codes6.1 mi1 ZIP code
Hedrick Iowa ZIP codes7.1 mi1 ZIP code
Rose Hill Iowa ZIP codes7.6 mi1 ZIP code
Delta Iowa ZIP codes9.3 mi1 ZIP code
Martinsburg Iowa ZIP codes9.7 mi1 ZIP code
Chillicothe Iowa ZIP codes10 mi1 ZIP code
Hayesville Iowa ZIP codes10 mi1 ZIP code
University Park Iowa ZIP codes11 mi1 ZIP code

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