Dunlap Iowa ZIP Codes

Dunlap holds a single ZIP code.

Every ZIP code in Dunlap

The complete list of Dunlap, Iowa ZIP codes with the county each falls in.
ZIP code	County
51529	Harrison 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Dunlap codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Dunlap. 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 Dunlap ZIP code begins 515. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 57 ZIP codes, so Dunlap accounts for 2% of it.

Every Iowa ZIP prefix and the region it covers →

Area codes covering Dunlap

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 Dunlap occupies.

712 Area code 712

Dunlap Iowa area codes in full →

Where Dunlap's ZIP codes sit

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

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

Cities near Dunlap

The closest places to Dunlap with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Dow City Iowa ZIP codes	7.6 mi	1 ZIP code
Arion Iowa ZIP codes	9.8 mi	1 ZIP code
Woodbine Iowa ZIP codes	9.8 mi	1 ZIP code
Earling Iowa ZIP codes	11 mi	1 ZIP code
Panama Iowa ZIP codes	11 mi	1 ZIP code
Soldier Iowa ZIP codes	13 mi	1 ZIP code
Defiance Iowa ZIP codes	14 mi	1 ZIP code
Moorhead Iowa ZIP codes	14 mi	1 ZIP code

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