Webster Iowa ZIP Codes

Webster holds a single ZIP code.

Every ZIP code in Webster

The complete list of Webster, Iowa ZIP codes with the county each falls in.
ZIP code	County
52355	Keokuk 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Webster codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Webster. 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 Webster ZIP code begins 523. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 53 ZIP codes, so Webster accounts for 2% of it.

Every Iowa ZIP prefix and the region it covers →

Area codes covering Webster

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 Webster occupies.

319 Area code 319

Webster Iowa area codes in full →

Where Webster's ZIP codes sit

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

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

Cities near Webster

The closest places to Webster with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Webster City Iowa ZIP codes	0.0 mi	1 ZIP code
Kamrar Iowa ZIP codes	6.8 mi	1 ZIP code
Woolstock Iowa ZIP codes	7.2 mi	1 ZIP code
Blairsburg Iowa ZIP codes	9.0 mi	1 ZIP code
Duncombe Iowa ZIP codes	9.1 mi	1 ZIP code
Stanhope Iowa ZIP codes	12 mi	1 ZIP code
Vincent Iowa ZIP codes	14 mi	1 ZIP code
Lehigh Iowa ZIP codes	14 mi	1 ZIP code

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