Oakland County
Also known as Oakland County, Michigan, Oakland County, MI
county in Michigan, United States
Key facts
- Country
- United States
- State
- Michigan
- Metro
- Metro Detroit
- Incorporated
- 1819 (created), 1820 (organized)
- County seat
- Pontiac (Legislative and Judicial), Waterford (Executive)
- Largest city
- Troy
- Executive
- David Coulter ( D )
- Prosecuting attorney
- Karen McDonald ( D )
- Total
- 907 sq mi (2,350 km )
- Land
- 868 sq mi (2,250 km )
- Water
- 40 sq mi (100 km )
- Estimate 2025
- 1,288,337
- Density
Article
Oakland County is a county in the U.S. state of Michigan. It is a principal county of the Detroit metropolitan area, containing the bulk of Detroit's northern suburbs. Its county seat is Pontiac, and its largest city is Troy. As of the 2020 census, its population was 1,274,395, making it the second-most populous county in Michigan (behind neighboring Wayne County), and the most populous county in the United States without a city of 100,000 residents.
Founded in 1819 and organized the following year, Oakland County is composed of 62 cities, villages, and townships. In 2010, Oakland County was among the ten wealthiest counties in the United States that had over one million residents. It is also home to Oakland University, a large public institution that straddles the border between the cities of Auburn Hills and Rochester Hills.