Diamondhead Lake Flag

Diamondhead Lake

County:
Adair County
County Seat:
No
Area (mi²):
0.973
State:
Iowa

Diamondhead Lake is a CDP located in Adair County, Iowa. Diamondhead Lake has a 2026 population of 264. Diamondhead Lake is currently declining at a rate of -2.22% 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 Diamondhead Lake is $148,542 with a poverty rate of 0%. The median age in Diamondhead Lake is 58.4 years: 58.5 years for males, and 58.3 years for females. For every 100 females there are 64.7 males.

264
Total Population
271
Density (mi²)
-6 -2.22%
Growth

Diamondhead Lake Population

Diamondhead Lake Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026264-6-2.22%
2025270-7-2.53%

Median Age

Overall: 58.4 years
Female: 58.3 years
Male: 58.5 years

Diamondhead Lake Adults

There are 274 adults, (26 of whom are seniors) in Diamondhead Lake.

Sex Ratio

Female: 173 (60.7%)
Male: 112 (39.3%)

Demographics

The racial composition of Diamondhead Lake includes 88.07% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White25188.07%
Two or more races3411.93%
Race
Population ↓
Percentage (of total)
White25188.07%
Two or more races3411.93%

Diamondhead Lake Marital Status

Economics and Income Statistics

Diamondhead Lake 's average per capita income is $56,645. Household income levels show a median of $148,542. The poverty rate stands at 0%.

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$171,250$186,752
Married Families$148,854-
Households$148,542$161,476
Non Families-$77,227

$56,645

Average Income

$148,542

Median Household Income

0%

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)