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Delaware Iowa ZIP Codes

Delaware holds a single ZIP code.

Every ZIP code in Delaware

The complete list of Delaware, Iowa ZIP codes with the county each falls in.
ZIP codeCounty
52036Delaware 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Delaware codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Delaware. 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 Delaware ZIP code begins 520. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 46 ZIP codes, so Delaware accounts for 2% of it.

Every Iowa ZIP prefix and the region it covers →

Area codes covering Delaware

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 Delaware occupies.

Delaware Iowa area codes in full →

Where Delaware's ZIP codes sit

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

Cities near Delaware

The closest places to Delaware with their own ZIP code list, nearest first.
CityDistanceZIP codes
Delhi Iowa ZIP codes2.7 mi1 ZIP code
Earlville Iowa ZIP codes3.5 mi1 ZIP code
Manchester Iowa ZIP codes6.1 mi1 ZIP code
Greeley Iowa ZIP codes7.8 mi1 ZIP code
Hopkinton Iowa ZIP codes10 mi1 ZIP code
Ryan Iowa ZIP codes11 mi1 ZIP code
Dyersville Iowa ZIP codes11 mi1 ZIP code
Worthington Iowa ZIP codes12 mi1 ZIP code

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