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, Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Black or African American

Two or more races

Other race

Native American

Asian

Native Hawaiian or Pacific Islander

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%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%

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