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 2025 population of 224. Diamondhead Lake is currently declining at a rate of -3.86% annually and its population has decreased by -13.18% since the most recent census, which recorded a population of 258 in 2020.

The average household income in Diamondhead Lake is $159,035 with a poverty rate of 0%. The median age in Diamondhead Lake is 57 years: 55.7 years for males, and 58.5 years for females.

Demographics

The racial composition of Diamondhead Lake includes 86.57% White, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	245	86.57%
Two or more races	38	13.43%
Black or African American	0	0%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Diamondhead Lake Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Diamondhead Lake's average per capita income is $60,758. Household income levels show a median of $125,000. 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	$143,438	$180,718
Married Families	$142,604	-
Households	$125,000	$159,035
Non Families	-	$92,670

$60,758

Average Income

$125,000

Median Household Income

0%

Poverty Rate