Ada County, Idaho Population 2019

Ada County, Idaho's estimated population is 456,885 with a growth rate of 2.71% in the past year according to the most recent United States census data. Ada County, Idaho is the largest county in Idaho.

Year Population Growth Growth Rate
2018469,96613,0812.86%
2017456,88512,0612.71%
2016444,82411,7772.72%
2015433,0477,5071.76%
2014425,5409,4602.27%
2013416,0807,1501.75%
2012408,9307,6951.92%
2011401,2357,8852.00%
2010393,350187,57591.16%
1990205,77532,73918.92%
1980173,03660,80654.18%
1970112,23018,77020.08%
196093,46022,81132.29%
195070,64920,24840.17%
194050,40112,47632.90%
193037,9252,7127.70%
192035,2136,12521.06%
191029,08817,529151.65%
190011,5593,19138.13%
18908,3683,69479.03%
18804,6741,99974.73%
18702,6750.00%

How Many People Live in Ada County, Idaho?

456,885

Population by Race

Race Population Percentage
White395,72690.95%
Two or More Races13,1533.02%
Asian11,3072.60%
Some Other Race6,2871.44%
Black or African American5,6151.29%
American Indian and Alaska Native2,3690.54%
Native Hawaiian and Other Pacific Islander6600.15%

Ada County, Idaho Population Pyramid 2019

Ada County, Idaho Median Age

36.4


Total

35.7


Male

37.3


Female

Ada County, Idaho Adults

There are 327,266 adults, (56,491 of whom are seniors) in Ada County, Idaho.

Ada County, Idaho Age Dependency

60.7

Age Dependency Ratio

20.9

Old Age Dependency Ratio

39.8

Child Dependency Ratio

Ada County, Idaho Sex Ratio

Female

217,118

49.90%

Male

217,999

50.10%

Ada County, Idaho Households and Families

Ada County, Idaho Renter vs Owner Occupied by Household Type

Ada County, Idaho Household Types

Type Owner Renter
Married82.8%17.2%
All68.3%31.7%
Male57.7%42.3%
Non Family53.4%46.6%
Female49.1%50.9%

68.3%

Rate of Home Ownership

Type Count Average Size Owned
All164,3892.668.3
Married84,0653.2782.8
Non Family59,4351.3253.4
Female13,5203.4349.1
Male7,3693.7157.7

3.24

Average Family Size

2.6

Average Household Size

5.1%

Unmarried (Opposite Sex)

0.4%

Unmarried (Same Sex)

Ada County, Idaho Education

Education Attained Count Percentage
Less Than 9th Grade4,7631.65%
9th to 12th Grade10,5873.66%
High School Graduate64,70122.36%
Some College73,53325.41%
Associates Degree26,8879.29%
Bachelors Degree73,09225.26%
Graduate Degree35,81112.38%

Ada County, Idaho Educational Attainment by Race

Name Total High School Bachelors
White254,804244,46998,059
Hispanic17,81014,6643,846
Asian7,7196,7043,972
Multiple Races5,2574,9002,101
Other Race3,8692,847591
Black2,7242,222693
Native American1,6291,475186
Islander513501194

The highest rate of high school graduation is among islander people with a rate of 97.66%.

The highest rate of bachelors degrees is among asian people with a rate of 51.46%.

Name Average Male Female
Overall$37,505$46,266$30,948
Less Than High School$22,088$26,105$15,207
High School Grad$28,338$32,424$22,667
Some College$33,062$40,254$27,080
Bachelors Degree$48,539$59,597$36,608
Graduate Degree$65,818$85,236$51,109

$37,505

Average Earnings

$46,266

Average Male

$30,948

Average Female

Ada County, Idaho Language

Ada County, Idaho Language by Age

Ada County, Idaho Language

91.62% of Ada County, Idaho residents speak only English, while 8.38% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 4.05% of the population.

Ada County, Idaho Poverty

Ada County, Idaho Poverty by Race

Name Total In Poverty Poverty Rate
White364,74338,80610.64%
Hispanic32,7295,98918.30%
Multiple12,9872,72120.95%
Black5,4442,17940.03%
Other6,1801,43323.19%
Asian11,1991,0719.56%
Islander63327042.65%
Native2,1372019.41%

11.82%

Overall Poverty Rate

11.21%

Male Poverty Rate

12.42%

Female Poverty Rate

Poverty in Ada County, Idaho

The race most likely to be in poverty in Ada County, Idaho is Islander, with 42.65% below the poverty level.

The race least likely to be in poverty in Ada County, Idaho is Native, with 9.41% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.44%. Among those working part-time, it was 17.75%, and for those that did not work, the poverty rate was 19.96%.

Name Poverty
Less Than High School24.65%
High School13.30%
Some College9.86%
Bachelors or Greater4.74%
Name Poverty
Male Unemployed26.72%
Female Unemployed25.08%
Female Employed8.10%
Male Employed5.94%

Ada County, Idaho Income

Ada County, Idaho Income by Household Type

Name Median Mean
Households$60,151$80,990
Families$77,222$99,535
Married Families$87,423$111,122
Non Families$33,494$45,594

Ada County, Idaho Marital Status

Ada County, Idaho Marital Status

Marriage Rates

52.4%

Overall Marriage Rate

52.9%

Male Marriage Rate

51.8%

Female Marriage Rate

Ada County, Idaho Married by Age and Sex

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

Ada County, Idaho Veterans

28,945

Number of Veterans

26,465

Male Veterans

2,480

Female Veterans

War Veterans
Vietnam10,200
First Gulf War6,732
Second Gulf War5,550
Korea2,493
World War II1,447
Age Group Veterans
35 to 548,324
65 to 746,794
75+5,680
55 to 645,369
18 to 342,778

Ada County, Idaho Veterans by Race

Name Veterans % of Total
White27,1949.06%
Hispanic1,1915.39%
Asian4405.14%
2 or More4156.03%
Black3329.74%
Other3106.47%
Indian24512.53%
Hawaiian91.60%

Ada County, Idaho Veterans by Education

7.73%

Veteran Poverty Rate

26.38%

Veteran Disability Rate

Ada County, Idaho Employment Status

66.3%

Labor Force Participation

63.2%

Employment Rate

4.3%

Unemployment Rate

Ada County, Idaho Place of Birth

Origin of Non Citizens

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

Origin of Naturalized Citizens

46.11%

Born in Idaho

94.24%

Native Born

5.76%

Foreign Born

3.04%

Non Citizen

Place of Birth

94.24% of Ada County, Idaho residents were born in the United States, with 46.11% having been born in Idaho. 3.04% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Population of Cities in Ada County, Idaho

City 2010 Census 2016 Estimated Growth Growth Rate
Boise City208341223154148137.11%
Meridian76056956231956725.73%
Eagle1994424785484124.27%
Kuna1529817902260417.02%
Garden City10979116026235.67%
Star 58298375254643.68%
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990