Rock Flag

Rock

County:
Delta County
County Seat:
No
Area (mi²):
0.901
State:
Michigan

Rock is a CDP located in Delta County, Michigan. Rock has a 2026 population of 219. Rock is currently growing at a rate of 6.83% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The median household income in Rock is $71,250 with a poverty rate of 19.38%. The median age in Rock is 45.5 years: 38.6 years for males, and 56.3 years for females. For every 100 females there are 146.2 males.

219
Total Population
243
Density (mi²)
14 6.83%
Growth

Rock Population

Rock Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026219146.83%
2025205136.77%

Median Age

Overall: 45.5 years
Female: 56.3 years
Male: 38.6 years

Rock Adults

There are 148 adults, (54 of whom are seniors) in Rock.

Sex Ratio

Female: 65 (40.6%)
Male: 95 (59.4%)

Demographics

The racial composition of Rock includes 95% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White15295%
Two or more races85%
Race
Population ↓
Percentage (of total)
White15295%
Two or more races85%

Rock Marital Status

Economics and Income Statistics

Rock 's average per capita income is $0. Household income levels show a median of $71,250. The poverty rate stands at 19.38%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Families$121,042$107,433
Married Families$120,625-
Households$71,250$67,845
Non Families$22,000$34,280

$0

Average Income

$71,250

Median Household Income

19.38%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)