Population 23,832 · Census ACS 2020–24
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Population and households in Flat Rock
Household size in Flat Rock
| Period | Flat Rock | Detroit area | Michigan | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.82 | 2.63 | 2.58 | 2.68 |
| 2010–14 | 2.79 | 2.63 | 2.58 | 2.73 |
| 2015–19 | 2.70 | 2.58 | 2.53 | 2.71 |
| 2020–24 | 2.70 | 2.57 | 2.51 | 2.65 |
| Change | −0.13 | −0.07 | −0.06 | −0.03 |
Households in Flat Rock average 2.70 people, about the same as the country as a whole (2.65). The typical household here is bigger than in the Detroit area as a whole, where it has 2.57 people. Since 2006–10, household size has dropped from 2.82, a much bigger shift than nationally.
Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).
Median age in Flat Rock
| Period | Flat Rock | Detroit area | Michigan | U.S. |
|---|---|---|---|---|
| 2006–10 | 37.0 | 39.0 | 38.9 | 37.7 |
| 2010–14 | 39.5 | 40.1 | 40.1 | 38.6 |
| 2015–19 | 40.6 | 40.9 | 41.0 | 39.6 |
| 2020–24 | 41.9 | 41.0 | 41.3 | 40.1 |
| Change | +4.9 | +2.1 | +2.4 | +2.3 |
Flat Rock skews a little older than the country: its median age is 41.9, against 40.1 nationally. The Detroit area as a whole looks much the same. The median age has climbed from 37.0 in 2006–10, as it has nationally.
Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).
Single-parent households in Flat Rock
| Period | Flat Rock | Detroit area | Michigan | U.S. |
|---|---|---|---|---|
| 2006–10 | 10.1% | 12.1% | 11.3% | 12.3% |
| 2010–14 | 8.8% | 12.3% | 11.5% | 12.3% |
| 2015–19 | 11.9% | 11.3% | 10.9% | 11.6% |
| 2020–24 | 10.8% | 11.2% | 10.7% | 11.6% |
| Change | +0.6 pts | −0.9 pts | −0.6 pts | −0.6 pts |
Single parents head just over one in ten households in Flat Rock (10.8%), close to the national share of 11.6%. The single-parent share is up 0.6 points from 2006–10, even as the national share fell.
Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).
Housing in Flat Rock
Renters in Flat Rock
| Period | Flat Rock | Detroit area | Michigan | U.S. |
|---|---|---|---|---|
| 2006–10 | 20.8% | 26.7% | 25.8% | 33.3% |
| 2010–14 | 22.9% | 30.2% | 28.5% | 35.6% |
| 2015–19 | 19.8% | 31.0% | 28.8% | 36.0% |
| 2020–24 | 17.3% | 28.8% | 26.8% | 34.8% |
| Change | −3.4 pts | +2.1 pts | +1.0 pts | +1.5 pts |
Flat Rock is largely a place of homeowners: only 17.3% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Among homeowners, 33.4% have no mortgage at all, below the national share of 39.8%. The renter share has fallen 3.4 points since 2006–10, even as the national share rose.
Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).
Vacant homes in Flat Rock
| Period | Flat Rock | Detroit area | Michigan | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.0% | 11.3% | 13.0% | 11.4% |
| 2010–14 | 7.5% | 11.2% | 13.0% | 11.4% |
| 2015–19 | 6.1% | 10.0% | 11.9% | 11.1% |
| 2020–24 | 4.8% | 8.3% | 10.2% | 9.6% |
| Change | −1.2 pts | −3.1 pts | −2.8 pts | −1.8 pts |
Only 4.8% of homes in Flat Rock are vacant, far below the national rate of 9.6%, which usually means strong demand for housing. Vacancy has edged down 1.2 points since 2006–10, in line with the national trend. Flat Rock has a lower vacancy rate than the great majority of Michigan cities.
Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).
Age of homes in Flat Rock
| Period | Flat Rock | Detroit area | Michigan | U.S. |
|---|---|---|---|---|
| 2006–10 | 1985 | 1968 | 1969 | 1974 |
| 2010–14 | 1987 | 1969 | 1970 | 1975 |
| 2015–19 | 1987 | 1969 | 1971 | 1977 |
| 2020–24 | 1990 | 1970 | 1972 | 1980 |
| Change | +5 | +2 | +3 | +6 |
Much of the housing in Flat Rock is relatively new: half of its homes were built after 1990, compared with 1980 for the U.S. as a whole. The median year built has moved up from 1985 in 2006–10, a sign of steady new building. Newer construction is concentrated in the west, while the south has the oldest housing. Only 25 of the 331 Michigan cities with 5,000+ people have newer homes.
Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).
Rent in Flat Rock
| Period | Flat Rock | Detroit area | Michigan | U.S. |
|---|---|---|---|---|
| 2006–10 | $686 | $952 | $833 | $965 |
| 2010–14 | $804 | $1,005 | $886 | $1,040 |
| 2015–19 | $968 | $1,123 | $978 | $1,213 |
| 2020–24 | $1,111 | $1,373 | $1,228 | $1,571 |
| Change | +$424 | +$421 | +$395 | +$606 |
A typical rental in Flat Rock costs $1,111 a month with utilities, well below the national median of $1,571. Rents are up $424 a month from 2006–10, a 62% jump, roughly in step with the nation. The typical renter here spends 27.8% of household income on rent, just under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. Rents run highest in the west and lowest in the southeast.
Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).
Education in Flat Rock
Bachelor's degrees in Flat Rock
| Period | Flat Rock | Detroit area | Michigan | U.S. |
|---|---|---|---|---|
| 2006–10 | 18.0% | 27.8% | 26.1% | 28.4% |
| 2010–14 | 22.8% | 28.8% | 27.1% | 29.6% |
| 2015–19 | 23.7% | 31.1% | 29.5% | 32.1% |
| 2020–24 | 31.3% | 34.5% | 32.7% | 35.6% |
| Change | +13.3 pts | +6.7 pts | +6.6 pts | +7.2 pts |
Just over three in ten adults 25 and older in Flat Rock (31.3%) have a bachelor's degree or higher, a little below the national share of 35.6%. Since 2006–10, the share with a degree has risen 13.3 points, mirroring the country. College graduates are most concentrated in the north and least in the east.
Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
High school graduates in Flat Rock
| Period | Flat Rock | Detroit area | Michigan | U.S. |
|---|---|---|---|---|
| 2006–10 | 87.0% | 87.7% | 88.3% | 84.9% |
| 2010–14 | 90.7% | 88.4% | 89.3% | 86.1% |
| 2015–19 | 92.9% | 89.8% | 90.7% | 87.7% |
| 2020–24 | 94.0% | 90.9% | 91.8% | 89.3% |
| Change | +7.0 pts | +3.2 pts | +3.5 pts | +4.3 pts |
High school completion in Flat Rock is above the national rate: 94.0% of adults have a diploma or equivalent, against 89.3%. Since 2006–10, the share with a diploma has risen 7.0 points, in line with the national trend.
High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
Jobs in Flat Rock
| Period | Flat Rock | Detroit area | Michigan | U.S. |
|---|---|---|---|---|
| 2006–10 | 12.3% | 12.7% | 11.5% | 8.1% |
| 2010–14 | 12.0% | 12.8% | 11.7% | 9.4% |
| 2015–19 | 4.4% | 6.8% | 6.1% | 5.6% |
| 2020–24 | 7.1% | 6.7% | 5.9% | 5.4% |
| Change | −5.1 pts | −5.9 pts | −5.7 pts | −2.7 pts |
Unemployment runs high in Flat Rock: 7.1% of the labor force was out of work and looking, against 5.4% nationally. Unemployment is down 5.1 points from 2006–10, in line with the national trend. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's job market.
Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).
Flat Rock compared with nearby cities
| City | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Flat Rock | 2.70 | 41.9 | 10.8% | 17.3% | 4.8% | 1990 | $1,111 | 31.3% | 94.0% | 7.1% |
| Woodhaven | 2.80 | 43.9 | 7.5% | 17.5% | 4.1% | 1978 | $1,132 | 29.2% | 93.9% | 2.1% |
| Trenton | 2.52 | 44.3 | 10.2% | 23.0% | 5.3% | 1975 | $1,145 | 28.5% | 94.2% | 5.6% |
| South Rockwood | 2.44 | 44.8 | 11.8% | 23.4% | 6.4% | 1984 | $1,271 | 19.6% | 93.3% | 3.1% |
| Rockwood | 2.61 | 44.6 | 9.5% | 15.8% | 4.3% | 1985 | $1,293 | 28.2% | 94.4% | 3.7% |
| Gibraltar | 2.11 | 54.7 | 5.6% | 10.0% | 10.0% | 1967 | $1,282 | 26.0% | 95.4% | 5.9% |
| Waltz | 2.44 | 54.0 | 12.8% | 4.5% | 3.9% | 1980 | $1,139 | 20.6% | 94.1% | 6.5% |
| New Boston | 2.77 | 46.6 | 6.2% | 7.2% | 3.8% | 1986 | $1,331 | 23.0% | 93.4% | 3.2% |
| Riverview | 2.41 | 40.4 | 9.5% | 32.9% | 8.1% | 1971 | $1,302 | 20.5% | 91.3% | 3.1% |
| Carleton | 2.52 | 48.6 | 12.0% | 10.1% | 3.9% | 1978 | $1,116 | 16.5% | 93.1% | 5.6% |
| Grosse Ile | 2.54 | 50.2 | 3.4% | 8.1% | 7.8% | 1970 | $1,316 | 50.7% | 96.8% | 4.5% |
All figures 2020–24.
Cities with similar populations: Radcliff, KY · Keene, NH · Kennett Square, PA · Laurinburg, NC · Little River, SC · Lorton, VA · Maple Heights, OH · Pascagoula, MS · Pecan Grove, TX · Piqua, OH
About these numbers
Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Flat Rock. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.
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