Dedham Iowa ZIP Codes

Dedham holds a single ZIP code.

Every ZIP code in Dedham

The complete list of Dedham, Iowa ZIP codes with the county each falls in.
ZIP code	County
51440	Carroll 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Dedham codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Dedham. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every Dedham ZIP code begins 514. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 32 ZIP codes, so Dedham accounts for 3% of it.

Every Iowa ZIP prefix and the region it covers →

Area codes covering Dedham

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 Dedham occupies.

712 Area code 712

Dedham Iowa area codes in full →

Where Dedham's ZIP codes sit

Each point is one Dedham ZIP code, plotted from its record coordinates.

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

Cities near Dedham

The closest places to Dedham with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Templeton Iowa ZIP codes	6.1 mi	1 ZIP code
Coon Rapids Iowa ZIP codes	7.8 mi	1 ZIP code
Gray Iowa ZIP codes	9.5 mi	1 ZIP code
Halbur Iowa ZIP codes	10 mi	1 ZIP code
Carroll Iowa ZIP codes	11 mi	1 ZIP code
Glidden Iowa ZIP codes	12 mi	1 ZIP code
Manning Iowa ZIP codes	12 mi	1 ZIP code
Ralston Iowa ZIP codes	14 mi	1 ZIP code

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