Founded in 1829, Berrien County is one of 83 counties in the state of Michigan. Historically, Berrien County was formed from unorganized territory. The city of St. Joseph is the county seat. With FIPS code of 21, Berrien County has a population of 153,101 and area of 1,581 square miles (4,095 km2).
List of all cities in Berrien County, MI alphabetically
| City/Town | Postal Code | Area Code |
| Andrews University, MI | 49104 | 269 |
| Baroda, MI | 49101 | 269 |
| Benton Harbor, MI | 49022 | 269 |
| 49023 | 269 | |
| Berrien Center, MI | 49102 | 269 |
| Berrien Springs, MI | 49103 | 269 |
| 49104 | 269 | |
| Bridgman, MI | 49106 | 269 |
| Buchanan, MI | 49107 | 269 |
| Coloma, MI | 49038 | 269 |
| 49039 | 269 | |
| Eau Claire, MI | 49111 | 269 |
| Galien, MI | 49113 | 269 |
| Glendora, MI | 49107 | 269 |
| Grand Beach, MI | 49117 | 269 |
| Hagar Shores, MI | 49039 | 269 |
| Harbert, MI | 49115 | 269 |
| Lakeside, MI | 49116 | 269 |
| Michiana, MI | 49117 | 269 |
| New Buffalo, MI | 49117 | 269 |
| New Troy, MI | 49119 | 269 |
| Niles, MI | 49120 | 269 |
| 49121 | 269 | |
| Riverside, MI | 49084 | 269 |
| Saint Joseph, MI | 49085 | 269 |
| Sawyer, MI | 49125 | 269 |
| Simplicity Pattern, MI | 49121 | 269 |
| Sodus, MI | 49126 | 269 |
| Stevensville, MI | 49127 | 269 |
| Three Oaks, MI | 49128 | 269 |
| Union Pier, MI | 49129 | 269 |
| Watervliet, MI | 49098 | 269 |