Founded in 1829 (boundaries declared) and 1832 (organised), Jackson County is one of 83 counties in the state of Michigan. Historically, Jackson County was formed from part of Washtenaw County and unorganized territory. The city of Jackson is the county seat. With FIPS code of 75, Jackson County has a population of 160,050 and area of 724 square miles (1,875 km2).
List of all cities in Jackson County, MI alphabetically
| City/Town | Postal Code | Area Code |
| Brooklyn, MI | 49230 | 517 |
| Clarklake, MI | 49234 | 517 |
| Concord, MI | 49237 | 517 |
| Duck Lake, MI | 49284 | 517 |
| Grass Lake, MI | 49240 | 517 |
| Hanover, MI | 49241 | 517 |
| Horton, MI | 49246 | 517 |
| Jackson, MI | 49201 | 517 |
| 49202 | 517 | |
| 49203 | 517 | |
| 49204 | 517 | |
| Michigan Center, MI | 49254 | 517 |
| Munith, MI | 49259 | 517 |
| Napoleon, MI | 49261 | 517 |
| Norvell, MI | 49263 | 517 |
| Parma, MI | 49269 | 517 |
| Pleasant Lake, MI | 49272 | 517 |
| Rives Junction, MI | 49277 | 517 |
| Spring Arbor, MI | 49283 | 517 |
| Springport, MI | 49284 | 517 |