Flat Rock, MI Profile: Facts, Map & Data


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Flat Rock, Michigan - Basic Facts

The City of Flat Rock had a population of 10,268 as of July 1, 2016. Flat Rock ranks in the upper quartile for 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 Flat Rock is located at latitude 42.0971 and longitude -83.2698 in Wayne County. The formal boundaries for the City of Flat Rock (see map below) encompass a land area of 6.54 sq. miles and a water area of 0.14 sq. miles. Wayne County is in the Eastern time zone (GMT -5). The elevation is 600 feet.

The City of Flat Rock (GNIS ID: 1626284) 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 Flat Rock population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Alternate Unofficial Names for Flat Rock: Smooth Rock.

Neighborhood Data

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City of Flat Rock, MI Boundary Map

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Flat Rock, MI Data & Demographics (As of July 1, 2016)


Total Population 10,268
Population in Households 10,213
Population in Familes 8,576
Population in Group Qrtrs 55
Population Density1 1,570
Diversity Index2 26


Total Households 3,921
Average Household Size 2.6
Family Households 2,774
Average Family Size 3


Total Housing Units 4,044 (100%)
Owner Occupied HU 2,871 (71.0%)
Renter Occupied HU 1,050 (26.0%)
Vacant Housing Units 123 ( 3.0%)
Median Home Value $121,407
Average Home Value $137,043


Median Household Income $53,546
Average Household Income $65,355
Per Capita Income $25,106
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.62% 0.07%
Households 0.7% 0.11%
Families 0.53% 0.0%
Median Household Income   2.51%
Per Capita Income   2.19%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Flat Rock, MI - Peer Comparisons by Rank and Percentile

The table below compares Flat Rock to the other 692 incorporated cities, towns and CDPs in Michigan by rank and percentile using July 1, 2016 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 # 103 85th
Population Density1 # 191 73rd
Diversity Index2 # 170 76th
Median Household Income # 162 77th
Per Capita Income # 235 66th

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

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