Peosta Iowa ZIP Codes

Peosta holds a single ZIP code.

Every ZIP code in Peosta

The complete list of Peosta, Iowa ZIP codes with the county each falls in.
ZIP code	County
52068	Dubuque 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Peosta codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Peosta. 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 Peosta 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 Peosta accounts for 2% of it.

Every Iowa ZIP prefix and the region it covers →

Area codes covering Peosta

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 Peosta occupies.

563 Area code 563

Peosta Iowa area codes in full →

Where Peosta's ZIP codes sit

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

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

Cities near Peosta

The closest places to Peosta with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Epworth Iowa ZIP codes	4.6 mi	1 ZIP code
Dubuque Iowa ZIP codes	7.7 mi	5 ZIP codes
Farley Iowa ZIP codes	8.6 mi	1 ZIP code
Durango Iowa ZIP codes	8.6 mi	1 ZIP code
Bernard Iowa ZIP codes	9.3 mi	1 ZIP code
Sherrill Iowa ZIP codes	11 mi	1 ZIP code
Zwingle Iowa ZIP codes	13 mi	1 ZIP code
Cascade Iowa ZIP codes	13 mi	1 ZIP code

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