Doon Iowa ZIP Codes

Doon holds a single ZIP code.

Every ZIP code in Doon

The complete list of Doon, Iowa ZIP codes with the county each falls in.
ZIP code	County
51235	Lyon 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Doon codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Doon. 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 Doon ZIP code begins 512. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 20 ZIP codes, so Doon accounts for 5% of it.

Every Iowa ZIP prefix and the region it covers →

Area codes covering Doon

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 Doon occupies.

712 Area code 712

Doon Iowa area codes in full →

Where Doon's ZIP codes sit

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

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

Cities near Doon

The closest places to Doon with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Alvord Iowa ZIP codes	5.6 mi	1 ZIP code
Rock Valley Iowa ZIP codes	6.0 mi	1 ZIP code
Hull Iowa ZIP codes	8.0 mi	1 ZIP code
Inwood Iowa ZIP codes	10 mi	1 ZIP code
Rock Rapids Iowa ZIP codes	11 mi	1 ZIP code
Lester Iowa ZIP codes	12 mi	1 ZIP code
George Iowa ZIP codes	12 mi	1 ZIP code
Boyden Iowa ZIP codes	13 mi	1 ZIP code

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