Colo Iowa ZIP Codes

Colo holds a single ZIP code.

Every ZIP code in Colo

The complete list of Colo, Iowa ZIP codes with the county each falls in.
ZIP code	County
50056	Story 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Colo codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Colo. 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 Colo ZIP code begins 500. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 68 ZIP codes, so Colo accounts for 1% of it.

Every Iowa ZIP prefix and the region it covers →

Area codes covering Colo

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 Colo occupies.

641 Area code 641

Colo Iowa area codes in full →

Where Colo's ZIP codes sit

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

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

Cities near Colo

The closest places to Colo with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Nevada Iowa ZIP codes	7.8 mi	1 ZIP code
Collins Iowa ZIP codes	7.8 mi	1 ZIP code
State Center Iowa ZIP codes	7.9 mi	1 ZIP code
Rhodes Iowa ZIP codes	9.2 mi	1 ZIP code
Maxwell Iowa ZIP codes	9.4 mi	1 ZIP code
Zearing Iowa ZIP codes	10 mi	1 ZIP code
Clemons Iowa ZIP codes	11 mi	1 ZIP code
Melbourne Iowa ZIP codes	12 mi	1 ZIP code

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