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Mount Ayr Iowa ZIP Codes

Mount Ayr holds a single ZIP code.

Every ZIP code in Mount Ayr

The complete list of Mount Ayr, Iowa ZIP codes with the county each falls in.
ZIP codeCounty
50854Ringgold 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Mount Ayr codes above are listed without a column we would have to invent.

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

How these codes cluster

Every Mount Ayr ZIP code begins 508. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 28 ZIP codes, so Mount Ayr accounts for 4% of it.

Every Iowa ZIP prefix and the region it covers →

Area codes covering Mount Ayr

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 Mount Ayr occupies.

Mount Ayr Iowa area codes in full →

Where Mount Ayr's ZIP codes sit

Each point is one Mount Ayr ZIP code, plotted from its record coordinates.
  • Reference points and footprint
  • Not an official NANPA boundary
  • Not a USPS delivery area

Cities near Mount Ayr

The closest places to Mount Ayr with their own ZIP code list, nearest first.
CityDistanceZIP codes
Benton Iowa ZIP codes6.5 mi1 ZIP code
Diagonal Iowa ZIP codes8.6 mi1 ZIP code
Kellerton Iowa ZIP codes9.8 mi1 ZIP code
Tingley Iowa ZIP codes9.8 mi1 ZIP code
Redding Iowa ZIP codes11 mi1 ZIP code
Ellston Iowa ZIP codes11 mi1 ZIP code
Shannon City Iowa ZIP codes13 mi1 ZIP code
Clearfield Iowa ZIP codes14 mi1 ZIP code

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