Ann Arbor, Michigan

Ann Arbor
Nicknames: 
A2, A2, Tree Town, People's Republic of Ann Arbor
Interactive map of Ann Arbor
Ann Arbor
Ann Arbor
Coordinates: 42°16′53″N 83°44′54″W / 42.28139°N 83.74833°W / 42.28139; -83.74833
CountryUnited States
StateMichigan
CountyWashtenaw
Founded1824
Incorporated1833 (village)
1851 (city)
Founded byJohn Allen and Elisha Rumsey
Named afterThe wives of the city's founders (both named Ann) and the bur oak in the area
Government
 • TypeCouncil–manager
 • MayorChristopher Taylor (D)
 • AdministratorMilton Dohoney
 • ClerkJacqueline Beaudry
 • City council
Members
  • Christopher Taylor
  • Cynthia Harrison
  • Linh Song
  • Christopher Watson
  • Travis Radina
  • Ayesha Ghazi Edwin
  • Jen Eyer
  • Dharma Akmon
  • Jenn Cornell
  • Erica Briggs
  • Lisa Disch
Area
 • City
29.09 sq mi (75.35 km2)
 • Land28.22 sq mi (73.10 km2)
 • Water0.87 sq mi (2.25 km2)
 • Urban
159.64 sq mi (413.46 km2)
 • Metro
720 sq mi (1,870 km2)
Elevation
840 ft (256 m)
Population
 (2020)
 • City
123,851
 • Estimate 
(2024)
122,925
 • Rank231st in the United States
5th in Michigan
 • Density4,388.2/sq mi (1,694.28/km2)
 • Urban
317,689 (US: 129th)
 • Urban density2,210/sq mi (855/km2)
 • Metro
372,258 (US: 148th)
 • Metro density517/sq mi (200/km2)
DemonymAnn Arborite
GDP
 • Metro$30.556 billion (2022)
Time zoneUTC−5 (Eastern (EST))
 • Summer (DST)UTC−4 (EDT)
ZIP code(s)
48103–48109, 48113
Area code734
FIPS code26-03000
GNIS feature ID0620133
Websitea2gov.org

Ann Arbor is a city in Washtenaw County, Michigan, United States, of which it is the county seat. It had a population of 123,851 in 2020, making it the fifth most populous in Michigan.

The city is home to the University of Michigan, the oldest university in the state. Its economy is primarily focused on high technology, with numerous startup companies drawn to the area due to the university's robust research and development activities.

Founded in 1824 with American settlers from the East Coast, it was incorporated as a city in 1851. The city is located on the Huron River. It is the principal city of its metropolitan area, and it is also included in the Detroit–Warren–Ann Arbor combined statistical area as well as the Great Lakes megalopolis.