Sheldon Iowa ZIP Codes

Sheldon holds a single ZIP code.

Every ZIP code in Sheldon

The complete list of Sheldon, Iowa ZIP codes with the county each falls in.
ZIP code	County
51201	O'Brien 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Sheldon codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Sheldon. 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 Sheldon 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 Sheldon accounts for 5% of it.

Every Iowa ZIP prefix and the region it covers →

Area codes covering Sheldon

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 Sheldon occupies.

712 Area code 712

Sheldon Iowa area codes in full →

Where Sheldon's ZIP codes sit

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

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

Cities near Sheldon

The closest places to Sheldon with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Matlock Iowa ZIP codes	6.4 mi	1 ZIP code
Archer Iowa ZIP codes	6.7 mi	1 ZIP code
Hospers Iowa ZIP codes	8.0 mi	1 ZIP code
Boyden Iowa ZIP codes	8.1 mi	1 ZIP code
Ashton Iowa ZIP codes	9.3 mi	1 ZIP code
Sanborn Iowa ZIP codes	9.5 mi	1 ZIP code
Primghar Iowa ZIP codes	13 mi	1 ZIP code
Granville Iowa ZIP codes	14 mi	1 ZIP code

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