Ada County, Idaho Population 2023

Ada County, Idaho's estimated 2023 population is 525,747 with a growth rate of 1.99% in the past year according to the most recent United States census data. Ada County, Idaho is the largest county in Idaho. The 2010 population was 392,365 and has seen a growth of 33.99% since that time.

Note: data after 2020 is projected based on recent growth

Ada County, Idaho Population 2023

Population by Race

White

Two or more races

Asian

Other race

Black or African American

Native American

Native Hawaiian or Pacific Islander

Ada County, Idaho Population by Race

Ada County, Idaho Population Pyramid 2023

Ada County, Idaho Median Age

37.2

Total

36.5

Male

38.1

Female

Ada County, Idaho Adults

There are 358,787 adults, (67,892 of whom are seniors) in Ada County, Idaho.

Ada County, Idaho Age Dependency

61.4

Age Dependency Ratio

23.3

Old Age Dependency Ratio

38.1

Child Dependency Ratio

Ada County, Idaho Sex Ratio

Female234,38849.93%
Male235,08550.07%

Ada County, Idaho Population by Age

Ada County, Idaho Renter vs Owner Occupied by Household Type

3.15

Average Family Size

2.57

Average Household Size

70.2%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Ada County, Idaho Households and Families

Male

Female

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Ada County, Idaho Educational Attainment by Sex (over 25)

Ada County, Idaho Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

The highest rate of high school graduation is among white people with a rate of 82.35%.

The highest rate of bachelors degrees is among asian people with a rate of 42.96%.

Ada County, Idaho Educational Attainment by Race

All

Male

Female

$42,005

Average Earnings

$50,761

Average Male

$35,106

Average Female

Ada County, Idaho Earnings by Educational Attainment

Ada County, Idaho Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Ada County, Idaho Language

91.53% of Ada County, Idaho residents speak only English, while 8.47% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 3.97% of the population.

Ada County, Idaho Language

Ada County, Idaho Poverty by Race

rate

11.31%

Overall Poverty Rate

8.45%

Male Poverty Rate

10.1%

Female Poverty Rate

Poverty in Ada County, Idaho

The race most likely to be in poverty in Ada County, Idaho is Islander, with 36.71% below the poverty level.

The race least likely to be in poverty in Ada County, Idaho is White, with 10.05% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.5%. Among those working part-time, it was 14.5%, and for those that did not work, the poverty rate was 17.36%.

Ada County, Idaho Poverty

Ada County, Idaho Poverty Rate by Education

Ada County, Idaho Poverty Rate by Employment Status and Sex

Ada County, Idaho Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

mean

median

Income by Household Type

Ada County, Idaho Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

52.7%

Overall Marriage Rate

53.6%

Male Marriage Rate

51.8%

Female Marriage Rate

Ada County, Idaho Married by Age and Sex

male

female

Ada County, Idaho Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

Ada County, Idaho Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Ada County, Idaho Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

29,526

Number of Veterans

26,882

Male Veterans

2,644

Female Veterans

Ada County, Idaho Veterans by War

Ada County, Idaho Veterans by Age

count

Ada County, Idaho Veterans by Race

Ada County, Idaho Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.83%

Veteran Poverty Rate

25.35%

Veteran Disability Rate

Ada County, Idaho Veterans by Education

LaborForceParticipation

68%

Labor Force Participation

65.2%

Employment Rate

3.7%

Unemployment Rate

Ada County, Idaho Employment by Age

LaborForceParticipation

Ada County, Idaho Employment by Race

LaborForceParticipation

Ada County, Idaho 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

41.8%

Born in Ada County, Idaho

89.41%

Native Born

5.44%

Foreign Born

2.49%

Non Citizen

2.95%

Naturalized

Place of Birth

89.41% of Ada County, Idaho residents were born in the United States, with 41.8% having been born in Idaho. 2.49% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Ada County, Idaho Place of Birth

Sources