Population 7,137 · Census ACS 2020–24
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Population and households in Marine City
Household size in Marine City
| Period | Marine City | Detroit area | Michigan | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.59 | 2.63 | 2.58 | 2.68 |
| 2010–14 | 2.44 | 2.63 | 2.58 | 2.73 |
| 2015–19 | 2.35 | 2.58 | 2.53 | 2.71 |
| 2020–24 | 2.35 | 2.57 | 2.51 | 2.65 |
| Change | −0.24 | −0.07 | −0.06 | −0.03 |
Households in Marine City are small: just 2.35 people on average, compared with 2.65 nationally. That is typical of places where many people live alone or as couples, and fewer have children at home. Household size has dropped from 2.59 in 2006–10, 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 Marine City
| Period | Marine City | Detroit area | Michigan | U.S. |
|---|---|---|---|---|
| 2006–10 | 38.0 | 39.0 | 38.9 | 37.7 |
| 2010–14 | 44.0 | 40.1 | 40.1 | 38.6 |
| 2015–19 | 45.9 | 40.9 | 41.0 | 39.6 |
| 2020–24 | 49.1 | 41.0 | 41.3 | 40.1 |
| Change | +11.1 | +2.1 | +2.4 | +2.3 |
With a median age of 49.1, Marine City is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees. Since 2006–10, the median age has climbed from 38.0, a much bigger shift than nationally. Only 19 of the 331 Michigan cities with 5,000+ people are older.
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 Marine City
| Period | Marine City | Detroit area | Michigan | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.6% | 12.1% | 11.3% | 12.3% |
| 2010–14 | 9.2% | 12.3% | 11.5% | 12.3% |
| 2015–19 | 9.2% | 11.3% | 10.9% | 11.6% |
| 2020–24 | 4.4% | 11.2% | 10.7% | 11.6% |
| Change | −4.2 pts | −0.9 pts | −0.6 pts | −0.6 pts |
Single-parent households are relatively rare in Marine City: 4.4% of households, against 11.6% nationally. Since 2006–10, the single-parent share has fallen 4.2 points, a much bigger shift than nationally. Of the 331 Michigan cities with 5,000+ people, only 14 have a lower share of single-parent households.
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 Marine City
Renters in Marine City
| Period | Marine City | Detroit area | Michigan | U.S. |
|---|---|---|---|---|
| 2006–10 | 19.9% | 26.7% | 25.8% | 33.3% |
| 2010–14 | 20.7% | 30.2% | 28.5% | 35.6% |
| 2015–19 | 20.3% | 31.0% | 28.8% | 36.0% |
| 2020–24 | 13.7% | 28.8% | 26.8% | 34.8% |
| Change | −6.2 pts | +2.1 pts | +1.0 pts | +1.5 pts |
Only 13.7% of households in Marine City rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 41.6% have no mortgage at all, about the same as nationally. Renting is most common in the north and least common in the southwest. The renter share is down 6.2 points from 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 Marine City
| Period | Marine City | Detroit area | Michigan | U.S. |
|---|---|---|---|---|
| 2006–10 | 12.3% | 11.3% | 13.0% | 11.4% |
| 2010–14 | 7.1% | 11.2% | 13.0% | 11.4% |
| 2015–19 | 11.5% | 10.0% | 11.9% | 11.1% |
| 2020–24 | 11.2% | 8.3% | 10.2% | 9.6% |
| Change | −1.1 pts | −3.1 pts | −2.8 pts | −1.8 pts |
A few more homes sit empty in Marine City than nationally: 11.2%, against 9.6%. The count includes vacation homes and homes between owners or tenants, not just abandoned ones. Since 2006–10, vacancy has edged down 1.1 points, in line with the national trend.
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 Marine City
| Period | Marine City | Detroit area | Michigan | U.S. |
|---|---|---|---|---|
| 2006–10 | 1960 | 1968 | 1969 | 1974 |
| 2010–14 | 1961 | 1969 | 1970 | 1975 |
| 2015–19 | 1964 | 1969 | 1971 | 1977 |
| 2020–24 | 1957 | 1970 | 1972 | 1980 |
| Change | −3 | +2 | +3 | +6 |
Marine City is a place of older homes: half were built before 1957, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. Newer construction is concentrated in the northwest, while the south has the oldest housing. Of the 331 Michigan cities with 5,000+ people, only 30 have older 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 Marine City
| Period | Marine City | Detroit area | Michigan | U.S. |
|---|---|---|---|---|
| 2006–10 | $725 | $952 | $833 | $965 |
| 2010–14 | $815 | $1,005 | $886 | $1,040 |
| 2015–19 | $881 | $1,123 | $978 | $1,213 |
| 2020–24 | $964 | $1,373 | $1,228 | $1,571 |
| Change | +$238 | +$421 | +$395 | +$606 |
The median renter in Marine City pays $964 a month for rent and utilities, well below the national median of $1,571. Rent has climbed $238 a month since 2006–10, up 33%, a slower climb than the nation's. Rent takes 29.8% of the typical renter's income, just under the 30% mark often used to define affordable rent. The priciest rents are in the north; the most affordable are in the east.
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 Marine City
Bachelor's degrees in Marine City
| Period | Marine City | Detroit area | Michigan | U.S. |
|---|---|---|---|---|
| 2006–10 | 11.4% | 27.8% | 26.1% | 28.4% |
| 2010–14 | 13.0% | 28.8% | 27.1% | 29.6% |
| 2015–19 | 13.6% | 31.1% | 29.5% | 32.1% |
| 2020–24 | 20.9% | 34.5% | 32.7% | 35.6% |
| Change | +9.5 pts | +6.7 pts | +6.6 pts | +7.2 pts |
College degrees are relatively uncommon in Marine City: 20.9% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%. The share with a degree has risen 9.5 points since 2006–10, as it has nationally.
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 Marine City
| Period | Marine City | Detroit area | Michigan | U.S. |
|---|---|---|---|---|
| 2006–10 | 89.1% | 87.7% | 88.3% | 84.9% |
| 2010–14 | 89.9% | 88.4% | 89.3% | 86.1% |
| 2015–19 | 94.6% | 89.8% | 90.7% | 87.7% |
| 2020–24 | 91.2% | 90.9% | 91.8% | 89.3% |
| Change | +2.1 pts | +3.2 pts | +3.5 pts | +4.3 pts |
High school completion in Marine City is a bit above the national rate: 91.2% of adults have a diploma or equivalent, against 89.3%. The picture is much the same across the Detroit area. The share with a diploma has risen 2.1 points since 2006–10, as it has nationally.
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 Marine City
| Period | Marine City | Detroit area | Michigan | U.S. |
|---|---|---|---|---|
| 2006–10 | 16.2% | 12.7% | 11.5% | 8.1% |
| 2010–14 | 12.6% | 12.8% | 11.7% | 9.4% |
| 2015–19 | 5.1% | 6.8% | 6.1% | 5.6% |
| 2020–24 | 5.9% | 6.7% | 5.9% | 5.4% |
| Change | −10.3 pts | −5.9 pts | −5.7 pts | −2.7 pts |
Unemployment in Marine City is close to the national rate: 5.9% of the labor force, against 5.4%. The rate is lower than in the Detroit area overall (6.7%). Unemployment is down 10.3 points from 2006–10, a much bigger shift than nationally.
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).
Marine City 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Marine City | 2.35 | 49.1 | 4.4% | 13.7% | 11.2% | 1957 | $964 | 20.9% | 91.2% | 5.9% |
| Peters | 2.89 | 44.1 | 12.9% | 3.2% | 9.4% | 1979 | $954 | 13.0% | 96.4% | 3.7% |
| Four Towns | 2.39 | 55.9 | 4.1% | 2.8% | 5.5% | 1989 | $909 | 19.7% | 92.8% | 11.3% |
| East China | 2.46 | 50.8 | 5.7% | 14.3% | 7.5% | 1985 | $953 | 23.0% | 94.4% | 8.9% |
| Algonac | 2.23 | 48.9 | 9.2% | 14.1% | 6.7% | 1972 | $962 | 17.2% | 93.9% | 4.8% |
| Roberts Landing | 2.36 | 43.8 | 14.9% | 3.4% | 12.9% | 1983 | $847 | 10.5% | 91.8% | 9.6% |
| Pearl Beach | 2.04 | 52.3 | 0.7% | 5.3% | 7.4% | 1990 | $1,081 | 16.1% | 96.4% | 1.4% |
| Fair Haven | 2.43 | 42.7 | 9.7% | 19.2% | 10.3% | 1984 | $1,304 | 21.6% | 92.3% | 7.3% |
| Harsens Island | 1.89 | 61.2 | 2.7% | 2.7% | 42.3% | 1971 | $1,044 | 23.5% | 96.8% | 2.1% |
| Casco | 2.81 | 37.6 | 17.4% | 4.8% | 2.6% | 1978 | $1,100 | 18.2% | 90.2% | 4.9% |
| St. Clair | 2.38 | 45.3 | 8.0% | 19.3% | 2.2% | 1976 | $1,143 | 27.5% | 95.0% | 2.9% |
All figures 2020–24.
Cities with similar populations: Winslow, ME · Bryans Road, MD · Brunswick, MD · Brookeville, MD · Broadview, IL · Boxford, MA · Bluefield, VA · Bloomingdale, NJ · Blandon, PA · Bigfork, MT
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 Marine City. 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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