Calumet City Illinois ZIP Codes
Calumet City holds a single ZIP code.
Every ZIP code in Calumet City
| ZIP code | County |
|---|---|
| 60409 | Cook 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Calumet City codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Calumet City. 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 Calumet City ZIP code begins 604. Those first three digits identify the sectional center facility that processes mail for this part of Illinois. Statewide that range covers 83 ZIP codes, so Calumet City accounts for 1% of it.
Every Illinois ZIP prefix and the region it covers →
Area codes covering Calumet City
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Calumet City occupies.
Calumet City Illinois area codes in full →
Where Calumet City's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Calumet City
| City | Distance | ZIP codes |
|---|---|---|
| Lansing Illinois ZIP codes | 2.2 mi | 1 ZIP code |
| South Holland Illinois ZIP codes | 3.3 mi | 1 ZIP code |
| Dolton Illinois ZIP codes | 3.8 mi | 1 ZIP code |
| Thornton Illinois ZIP codes | 4.4 mi | 1 ZIP code |
| Glenwood Illinois ZIP codes | 5.4 mi | 1 ZIP code |
| Harvey Illinois ZIP codes | 5.9 mi | 1 ZIP code |
| Riverdale Illinois ZIP codes | 5.9 mi | 1 ZIP code |
| Homewood Illinois ZIP codes | 6.9 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.