Three Oaks Michigan ZIP Codes
Three Oaks holds a single ZIP code.
Every ZIP code in Three Oaks
| ZIP code | County |
|---|---|
| 49128 | Berrien 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Three Oaks codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Three Oaks. 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 Three Oaks ZIP code begins 491. Those first three digits identify the sectional center facility that processes mail for this part of Michigan. Statewide that range covers 20 ZIP codes, so Three Oaks accounts for 5% of it.
Every Michigan ZIP prefix and the region it covers →
Area codes covering Three Oaks
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 Three Oaks occupies.
Three Oaks Michigan area codes in full →
Where Three Oaks's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Three Oaks
| City | Distance | ZIP codes |
|---|---|---|
| Galien Michigan ZIP codes | 5.9 mi | 1 ZIP code |
| New Buffalo Michigan ZIP codes | 6.6 mi | 1 ZIP code |
| Bridgman Michigan ZIP codes | 9.7 mi | 1 ZIP code |
| Baroda Michigan ZIP codes | 13 mi | 1 ZIP code |
| Buchanan Michigan ZIP codes | 13 mi | 1 ZIP code |
| Stevensville Michigan ZIP codes | 16 mi | 1 ZIP code |
| Berrien Springs Michigan ZIP codes | 17 mi | 2 ZIP codes |
| Niles Michigan ZIP codes | 19 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.