Demographics of Flat Rock city, Michigan

Flat Rock city, Michigan had 10,218 people on July 1, 2025, by the Census Bureau’s estimate: −285 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Flat Rock city, in four figures

10,218
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 10,340 ±59.; −2.7%
Change since July 2020: −285 people.; 39.3 ±1.9
Median age: ACS 2020–⁠2024.; $81,585 ±$9,827
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. The Bureau publishes no births, deaths or migration for a place, so the change is the difference between one July estimate and the next.

Flat Rock city, Michigan's population shrank 2.7% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Flat Rock city, Michigan's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

Source: The Census Bureau

About this chart

The figures

Flat Rock city, Michigan's population shrank 2.7% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Flat Rock city, Michigan's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	10,503	100.0	100.0
2021	10,391	98.9	100.2
2022	10,261	97.7	100.7
2023	10,203	97.1	101.6
2024	10,219	97.3	102.5
2025	10,218	97.3	103.1

Population of Flat Rock city, Michigan on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	10,503	—
2021	10,391	−112
2022	10,261	−130
2023	10,203	−58
2024	10,219	+16
2025	10,218	−1

Age, 2020–2024

The median age is 39.3 ±1.9: for men 36.9 ±3.8 and for women 40.8 ±3.9. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Flat Rock city by age, ACS 2020–2024
Age	People	Share	Michigan	United States
Under 5	495 ±223	4.8% ±2.2	5.4% ±<0.1	5.6% ±<0.1
5 to 17	2,062 ±355	19.9% ±3.4	15.9% ±0.1	16.3% ±<0.1
18 to 24	879 ±298	8.5% ±2.9	9.2% ±0.1	9.1% ±<0.1
25 to 44	2,508 ±388	24.3% ±3.7	25.3% ±0.1	26.9% ±<0.1
45 to 64	2,813 ±379	27.2% ±3.7	25.6% ±0.1	24.8% ±<0.1
65 and over	1,583 ±284	15.3% ±2.8	18.6% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $81,585 ±$9,827, and income per person $41,239 ±$4,250, in 2024 dollars. The median is $72,875 ±$293 in Michigan and $80,734 ±$166 in the United States.

Households by income

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Households in Flat Rock city by income, ACS 2020–2024
Household income	Households	Share	Michigan	United States
Under $25,000	584 ±216	14.9% ±5.4	15.8% ±0.1	14.6% ±<0.1
$25,000 to $49,999	671 ±191	17.1% ±4.7	18.7% ±0.2	16.7% ±<0.1
$50,000 to $74,999	532 ±172	13.6% ±4.3	16.8% ±0.1	15.5% ±<0.1
$75,000 to $99,999	456 ±168	11.6% ±4.2	13.2% ±0.1	12.6% ±<0.1
$100,000 to $149,999	694 ±196	17.7% ±4.8	17.3% ±0.2	17.5% ±<0.1
$150,000 to $199,999	425 ±138	10.8% ±3.4	8.6% ±0.1	9.6% ±<0.1
$200,000 or more	562 ±178	14.3% ±4.4	9.5% ±0.1	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Flat Rock city by age, ACS 2020–2024
Age	Below poverty	Rate	Michigan	United States
All ages	1,068 ±493	10.3% ±4.8	13.2% ±0.2	12.5% ±0.1
Under 18	147 to 567	6.2% to 21.9%	17.6% ±0.3	16.1% ±0.1
18 to 59	337 ±156	6.0% ±2.7	12.7% ±0.2	11.6% ±0.1
60 and over	374 ±171	17.4% ±7.5	10.5% ±0.1	11.0% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Housing, 2020–2024

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Housing in Flat Rock city, ACS 2020–2024
Measure	Flat Rock city	Michigan	United States
Housing units	4,169 ±265	4,622,236 ±795	143,775,355 ±10,234
Occupied	94.1% ±2.5	88.2% ±0.2	89.9% ±0.1
Vacant	2.7% to 9.1%	11.8% ±0.2	10.1% ±0.1
Owner occupied	83.2% ±3.2	73.2% ±0.3	65.2% ±0.3
Renter occupied	16.8% ±4.8	26.8% ±0.2	34.8% ±0.1
Median home value	$228,800 ±$21,512	$231,600 ±$642	$332,700 ±$236
Median gross rent	$919 ±$125	$1,129 ±$4	$1,413 ±$2
Median year built	1985 ±6	1972 ±1	1980 ±1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Flat Rock city by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Michigan	United States
Hispanic or Latino	380 to 1,154	3.7% to 11.2%	5.9% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	8,093 ±782	78.3% ±7.5	72.4% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	238 to 1,418	2.3% to 13.7%	13.1% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	0 to 26	0% to 0.3%	3.4% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 34	0% to 0.3%	0.3% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 18	0% to 0.2%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 241	0% to 2.3%	0.5% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	248 to 774	2.4% to 7.5%	4.5% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Flat Rock city by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Michigan	United States
Born in the state	8,810 ±390	85.2% ±3.7	76.0% ±0.1	57.3% ±<0.1
Born in another state	1,279 ±322	12.4% ±3.1	16.0% ±0.1	26.9% ±<0.1
Born a citizen outside the states	0 to 34	0% to 0.3%	0.9% ±<0.1	1.7% ±<0.1
Born abroad	91 to 385	0.9% to 3.7%	7.2% ±0.1	14.1% ±<0.1
Naturalized citizens	40 to 336	0.4% to 3.2%	4.1% ±0.1	7.4% ±<0.1
Not citizens	11 to 89	0.1% to 0.9%	3.1% ±0.1	6.8% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Flat Rock city among the places of Michigan

99th of 179 places of 5,000 or more by the survey’s 2020–2024 count. Every one is listed on the Michigan page.

Places of Michigan near Flat Rock city in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Sturgis city	11,054 ±65
Grand Haven city	10,996 ±67
Comstock Park CDP	10,577 ±679
Beverly Hills village	10,524 ±33
Cadillac city	10,445 ±36
Flat Rock city	10,340 ±59
Alpena city	10,154 ±46
Howell city	10,021 ±33
Lambertville CDP	9,955 ±792
Marysville city	9,925 ±19
Grosse Pointe Farms city	9,904 ±23

Rankings this appears in

No. 9 Places in Michigan by homeownership rate
No. 26 Places in Michigan by median household income
No. 33 Places in Michigan by median age
No. 36 Places in Michigan by per capita income
No. 45 Places in Michigan by poverty rate
No. 52 Places in Michigan by median home value

Sources

Census Bureau population estimates — incorporated places and New England towns — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Compiled automatically from Census Bureau population estimates — incorporated places and New England towns and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 25, 2026