Irmo, South Carolina Population 2023

12,118

Irmo is a city located in Lexington County and Richland County South Carolina. With a 2023 population of 12,118, it is the 37th largest city in South Carolina and the 2757th largest city in the United States.Irmo is currently growing at a rate of 1.52% annually and its population has increased by 4.63% since the most recent census, which recorded a population of 11,582 in 2020. Spanning over 7 miles, Irmo has a population density of 1,769 people per square mile.

The average household income in Irmo is $77,667 with a poverty rate of 8.73%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Irmo is 39.6 years, 37 years for males, and 41.6 years for females.

Irmo Demographics

According to the most recent ACS, the racial composition of Irmo was:

  • White: 66.56%
  • Black or African American: 27.81%
  • Asian: 3.65%
  • Two or more races: 1.97%
  • Native American: 0%
  • Native Hawaiian or Pacific Islander: 0%
  • Other race: 0%
The current population of Irmo, South Carolina is 12,118 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 11,582.

Irmo, South Carolina Population 2023

Population by Race

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White

Black or African American

Asian

Two or more races

Native American

Native Hawaiian or Pacific Islander

Other race

Irmo Population by Race

Irmo Population Pyramid 2023

Irmo Median Age

39.6

Total

37

Male

41.6

Female

Irmo Adults

There are 9,849 adults, (1,977 of whom are seniors) in Irmo.

Irmo Age Dependency

57.5

Age Dependency Ratio

25.1

Old Age Dependency Ratio

32.4

Child Dependency Ratio

Irmo Sex Ratio

Female6,80154.86%
Male5,59645.14%

Irmo Population by Age

Irmo Renter vs Owner Occupied by Household Type

2.99

Average Family Size

2.56

Average Household Size

81.9%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Irmo Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Irmo Educational Attainment by Sex (over 25)

Irmo Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among white people with a rate of 90.67%.

The highest rate of bachelors degrees is among white people with a rate of 32.95%.

Irmo Educational Attainment by Race

All

Male

Female

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$43,312

Average Earnings

$51,576

Average Male

$38,145

Average Female

Irmo Earnings by Educational Attainment

Irmo Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Irmo Language

94.88% of Irmo residents speak only English, while 5.12% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 2.97% of the population.

Irmo Language

Irmo Poverty by Race

rate

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8.73%

Overall Poverty Rate

5.24%

Male Poverty Rate

9.11%

Female Poverty Rate

Poverty in Irmo

The race most likely to be in poverty in Irmo is Multiple, with 30.63% below the poverty level.

The race least likely to be in poverty in Irmo is White, with 6.49% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.48%. Among those working part-time, it was 9.55%, and for those that did not work, the poverty rate was 9.87%.

Irmo Poverty

rate

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Irmo Poverty Rate by Education

rate

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Irmo Poverty Rate by Employment Status and Sex

Irmo Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Irmo Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

56.8%

Overall Marriage Rate

62.5%

Male Marriage Rate

52.0%

Female Marriage Rate

Irmo Married by Age and Sex

male

female

Irmo Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 55-64.

Irmo Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Irmo Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

840

Number of Veterans

751

Male Veterans

89

Female Veterans

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Irmo Veterans by War

count

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Irmo Veterans by Age

count

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Irmo Veterans by Race

Irmo Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

3.81%

Veteran Poverty Rate

35.6%

Veteran Disability Rate

Irmo Veterans by Education

LaborForceParticipation

67.9%

Labor Force Participation

60.7%

Employment Rate

10.2%

Unemployment Rate

Irmo Employment by Age

LaborForceParticipation

Irmo Employment by Race

LaborForceParticipation

Irmo Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

59.23%

Born in Irmo

104.2%

Native Born

2.83%

Foreign Born

1.64%

Non Citizen

1.19%

Naturalized

Place of Birth

104.2% of Irmo residents were born in the United States, with 59.23% having been born in South Carolina. 1.64% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Irmo Place of Birth

Note: data after 2021 is projected based on recent change
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Irmo Population by Year