Delmar

County:: Clinton County
County Seat:: No
Area (mi²):: 0.764
State:: Iowa

Delmar is a city located in Clinton County, Iowa. Delmar has a 2025 population of 540. Delmar is currently declining at a rate of -0.18% annually and its population has decreased by -0.74% since the most recent census, which recorded a population of 544 in 2020.

The average household income in Delmar is $81,140 with a poverty rate of 2.64%.The median age in Delmar is 39.9 years: 38 years for males, and 42.3 years for females.

Demographics

The racial composition of Delmar includes 91.37% White, 4.08% Black or African American, and smaller percentages for Two or more races, other race and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	381	91.37%
Black or African American	17	4.08%
Two or more races	12	2.88%
Other race	7	1.68%

Delmar Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Delmar's average per capita income is $48,750. Household income levels show a median of $74,583. The poverty rate stands at 2.64%.

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
Married Families	$101,250	-
Families	$96,667	$95,624
Households	$74,583	$81,140
Non Families	$45,714	$55,137

$48,750

Average Income

$74,583

Median Household Income

2.64%

Poverty Rate