Mazon Illinois ZIP Codes
Mazon holds a single ZIP code.
Every ZIP code in Mazon
| ZIP code | County |
|---|---|
| 60444 | Grundy 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Mazon codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Mazon. 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 Mazon 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 Mazon accounts for 1% of it.
Every Illinois ZIP prefix and the region it covers →
Area codes covering Mazon
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 Mazon occupies.
Mazon Illinois area codes in full →
Where Mazon's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Mazon
| City | Distance | ZIP codes |
|---|---|---|
| Verona Illinois ZIP codes | 4.6 mi | 1 ZIP code |
| Gardner Illinois ZIP codes | 6.6 mi | 1 ZIP code |
| Coal City Illinois ZIP codes | 7.9 mi | 1 ZIP code |
| Braceville Illinois ZIP codes | 8.2 mi | 1 ZIP code |
| Kinsman Illinois ZIP codes | 8.4 mi | 1 ZIP code |
| South Wilmington Illinois ZIP codes | 8.8 mi | 1 ZIP code |
| Morris Illinois ZIP codes | 9.6 mi | 1 ZIP code |
| Dwight Illinois ZIP codes | 9.9 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.