Founded in 1819 (boundaries declared) and 1820 (organized), Oakland County is one of 83 counties in the state of Michigan. Historically, Oakland County was formed from part of Macomb County. The city of Pontiac is the county seat. With FIPS code of 125, Oakland County has a population of 1,270,017 and area of 908 square miles (2,352 km2).
List of all cities in Oakland County, MI alphabetically
| City/Town | Postal Code | Area Code |
| Addison Township, MI | 48367 | 248/947 |
| Auburn Hills, MI | 48321 | 248/947 |
| 48326 | 248/947 | |
| Berkley, MI | 48072 | 248/947 |
| Beverly Hills, MI | 48025 | 248/947 |
| Bingham Farms, MI | 48025 | 248/947 |
| Birmingham, MI | 48009 | 248/947 |
| 48012 | 248/947 | |
| Bloomfield, MI | 48301 | 248/947 |
| 48302 | 248/947 | |
| 48303 | 248/947 | |
| 48304 | 248/947 | |
| Bloomfield Hills, MI | 48301 | 248/947 |
| 48302 | 248/947 | |
| 48303 | 248/947 | |
| 48304 | 248/947 | |
| Bloomfield Village, MI | 48301 | 248/947 |
| Brandon, MI | 48462 | 248/947 |
| Clarkston, MI | 48346 | 248/947 |
| 48347 | 248/947 | |
| 48348 | 248/947 | |
| Clawson, MI | 48017 | 248/947 |
| Commerce, MI | 48382 | 248/947 |
| 48390 | 248/947 | |
| Davisburg, MI | 48350 | 248/947 |
| Detroit, MI | 48220 | 248/947 |
| 48237 | 248/947 | |
| Drayton Plns, MI | 48330 | 248/947 |
| Farmington, MI | 48331 | 248/947 |
| 48332 | 248/947 | |
| 48333 | 248/947 | |
| 48334 | 248/947 | |
| 48335 | 248/947 | |
| 48336 | 248/947 | |
| Farmington Hills, MI | 48331 | 248/947 |
| 48332 | 248/947 | |
| 48333 | 248/947 | |
| 48334 | 248/947 | |
| 48335 | 248/947 | |
| 48336 | 248/947 | |
| Ferndale, MI | 48220 | 248/947 |
| Franklin, MI | 48025 | 248/947 |
| Goodison, MI | 48306 | 248/947 |
| Hazel Park, MI | 48030 | 248/947 |
| Highland, MI | 48356 | 248/947 |
| 48357 | 248/947 | |
| Holly, MI | 48442 | 248/947 |
| Huntington Woods, MI | 48070 | 248/947 |
| Independence, MI | 48346 | 248/947 |
| 48348 | 248/947 | |
| Keego Harbor, MI | 48320 | 248/947 |
| Lake Angelus, MI | 48326 | 248/947 |
| Lake Orion, MI | 48359 | 248/947 |
| 48360 | 248/947 | |
| 48361 | 248/947 | |
| 48362 | 248/947 | |
| Lakeville, MI | 48366 | 248/947 |
| Lathrup Village, MI | 48076 | 248/947 |
| Leonard, MI | 48367 | 248/947 |
| Madison Heights, MI | 48071 | 248/947 |
| MI Metro, MI | 48340 | 248/947 |
| Milford, MI | 48380 | 248/947 |
| 48381 | 248/947 | |
| New Hudson, MI | 48165 | 248/947 |
| Novi, MI | 48374 | 248/947 |
| 48375 | 248/947 | |
| 48376 | 248/947 | |
| 48377 | 248/947 | |
| Oak Park, MI | 48237 | 248/947 |
| Oakland, MI | 48306 | 248/947 |
| 48363 | 248/947 | |
| Orchard Lake, MI | 48323 | 248/947 |
| 48324 | 248/947 | |
| Orion, MI | 48359 | 248/947 |
| 48360 | 248/947 | |
| 48362 | 248/947 | |
| Ortonville, MI | 48462 | 248/947 |
| Oxford, MI | 48370 | 248/947 |
| 48371 | 248/947 | |
| Pleasant Ridge, MI | 48069 | 248/947 |
| Pontiac, MI | 48340 | 248/947 |
| Pontiac, MI | 48341 | 248/947 |
| Pontiac, MI | 48342 | 248/947 |
| Pontiac, MI | 48343 | 248/947 |
| Rochester, MI | 48306 | 248/947 |
| 48307 | 248/947 | |
| 48308 | 248/947 | |
| 48309 | 248/947 | |
| Rochester Hills, MI | 48306 | 248/947 |
| 48307 | 248/947 | |
| 48308 | 248/947 | |
| 48309 | 248/947 | |
| Royal Oak, MI | 48067 | 248/947 |
| 48068 | 248/947 | |
| 48073 | 248/947 | |
| Royal Oak Township, MI | 48220 | 248/947 |
| South Lyon, MI | 48178 | 248/947 |
| Southfield, MI | 48033 | 248 |
| 48034 | 248/947 | |
| 48037 | 248/947 | |
| 48075 | 248/947 | |
| 48076 | 248/947 | |
| 48086 | 248/947 | |
| Southfield Township, MI | 48025 | 248/947 |
| Springfield Township, MI | 48350 | 248/947 |
| Sylvan Lake, MI | 48320 | 248/947 |
| Troy, MI | 48007 | 248/947 |
| 48083 | 248/947 | |
| 48084 | 248/947 | |
| 48085 | 248/947 | |
| 48098 | 248/947 | |
| 48099 | 248/947 | |
| Union Lake, MI | 48387 | 248/947 |
| Walled Lake, MI | 48390 | 248/947 |
| Walled Lake, MI | 48391 | 248/947 |
| Waterford, MI | 48327 | 248/947 |
| 48328 | 248/947 | |
| 48329 | 248/947 | |
| 48330 | 248/947 | |
| West Bloomfield, MI | 48322 | 248/947 |
| 48323 | 248/947 | |
| 48324 | 248/947 | |
| 48325 | 248/947 | |
| White Lake, MI | 48383 | 248/947 |
| 48386 | 248/947 | |
| Wixom, MI | 48393 | 248/947 |
| Wolverine Lake, MI | 48390 | 248/947 |