Ann Arbor, MI Profile: Facts, Map & Data


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Ann Arbor, Michigan - Basic Facts

The City of Ann Arbor is the 5th largest city in Michigan with a population of 121,651 as of July 1, 2017. Ann Arbor ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Michigan. See peer rankings below.

The primary coordinate point for Ann Arbor is located at latitude 42.2757 and longitude -83.7314 in Washtenaw County. The formal boundaries for the City of Ann Arbor (see map below) encompass a land area of 27.86 sq. miles and a water area of 0.87 sq. miles. Washtenaw County is in the Eastern time zone (GMT -5). The elevation is 879 feet.

The City of Ann Arbor (GNIS ID: 1625837) has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Beneath the boundary map are tables with Ann Arbor population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Neighborhood Data

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City of Ann Arbor, MI Boundary Map

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Ann Arbor, MI Data & Demographics (As of July 1, 2017)


Total Population 121,651
Daytime Population: Workers 113,438
Daytime Population: Residents 61,593
Total Daytime Population (TDP) 175,031
Ratio TDP/Total Population1 1.44
Population in Households 109,947
Population in Familes 60,863
Population in Group Qrtrs 11,704
Population Density2 4,366
Diversity Index3 52


Median Household Income $54,530
Average Household Income $85,126
Per Capita Income $36,723


Total Housing Units 52,999 (100%)
Owner Occupied HU 21,429 (40.4%)
Renter Occupied HU 28,977 (54.7%)
Vacant Housing Units 2,593 ( 4.9%)
Median Home Value $260,508
Average Home Value $299,940


Total Households 50,406
Average Household Size 2.18
Family Households 21,179
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.9% 0.8%
Households 0.95% 0.84%
Families 0.44% 0.5%
Median Household Income   2.03%
Per Capita Income   2.37%

Ann Arbor, MI - Peer Comparisons by Rank and Percentile

The table below compares Ann Arbor to the other 692 incorporated cities, towns and CDPs in Michigan by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 5 99th
Population Density # 26 96th
Diversity Index # 52 93rd
Median Household Income # 172 75th
Per Capita Income # 69 90th

Additional comparisons and rankings can be made with a VERY EASY TO USE Michigan Census Data Comparison Tool.

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