Cassopolis Michigan ZIP Codes
Cassopolis holds a single ZIP code.
Every ZIP code in Cassopolis
| ZIP code | County |
|---|---|
| 49031 | Cass 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Cassopolis codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Cassopolis. 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 Cassopolis ZIP code begins 490. Those first three digits identify the sectional center facility that processes mail for this part of Michigan. Statewide that range covers 92 ZIP codes, so Cassopolis accounts for 1% of it.
Every Michigan ZIP prefix and the region it covers →
Area codes covering Cassopolis
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 Cassopolis occupies.
Cassopolis Michigan area codes in full →
Where Cassopolis's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Cassopolis
| City | Distance | ZIP codes |
|---|---|---|
| Vandalia Michigan ZIP codes | 4.8 mi | 1 ZIP code |
| Dowagiac Michigan ZIP codes | 7.3 mi | 1 ZIP code |
| Edwardsburg Michigan ZIP codes | 9.0 mi | 1 ZIP code |
| Marcellus Michigan ZIP codes | 13 mi | 1 ZIP code |
| Niles Michigan ZIP codes | 14 mi | 1 ZIP code |
| Decatur Michigan ZIP codes | 14 mi | 1 ZIP code |
| Eau Claire Michigan ZIP codes | 16 mi | 1 ZIP code |
| Berrien Springs Michigan ZIP codes | 17 mi | 2 ZIP codes |
Straight-line distance between place reference points, not driving distance.