Ada County, Idaho's estimated 2024 population is 530,342 with a growth rate of 1.08% 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 393,369 and has seen a growth of 34.82% since that time.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2029 | 558,687 | 5,669 | 1.03% |
| 2028 | 553,018 | 5,669 | 1.04% |
| 2027 | 547,349 | 5,669 | 1.05% |
| 2026 | 541,680 | 5,669 | 1.06% |
| 2025 | 536,011 | 5,669 | 1.07% |
| 2024 | 530,342 | 5,669 | 1.08% |
| 2023 | 524,673 | 5,669 | 1.09% |
| 2022 | 519,004 | 5,979 | 1.17% |
| 2021 | 513,025 | 14,747 | 2.96% |
| 2020 | 498,278 | 16,398 | 3.4% |
| 2019 | 481,880 | 12,719 | 2.71% |
| 2018 | 469,161 | 12,167 | 2.66% |
| 2017 | 456,994 | 12,065 | 2.71% |
| 2016 | 444,929 | 11,675 | 2.69% |
| 2015 | 433,254 | 7,480 | 1.76% |
| 2014 | 425,774 | 9,594 | 2.31% |
| 2013 | 416,180 | 7,148 | 1.75% |
| 2012 | 409,032 | 7,680 | 1.91% |
| 2011 | 401,352 | 7,983 | 2.03% |
| 2010 | 393,369 | 0 | 0% |
| 1990 | 205,775 | 32,739 | 18.92% |
| 1980 | 173,036 | 60,806 | 54.18% |
| 1970 | 112,230 | 18,770 | 20.08% |
| 1960 | 93,460 | 22,811 | 32.29% |
| 1950 | 70,649 | 20,248 | 40.17% |
| 1940 | 50,401 | 12,476 | 32.9% |
| 1930 | 37,925 | 2,712 | 7.7% |
| 1920 | 35,213 | 6,125 | 21.06% |
| 1910 | 29,088 | 17,529 | 151.65% |
| 1900 | 11,559 | 3,191 | 38.13% |
| 1890 | 8,368 | 3,694 | 79.03% |
| 1880 | 4,674 | 1,999 | 74.73% |
| 1870 | 2,675 | -556,012 | -99.52% |
White
Two or more races
Asian
Other race
Black or African American
Native American
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 190,641 | 2.54 | 71.3 | 28.7 |
| Married | 102,032 | 3.13 | 85.4 | 14.6 |
| Non Family | 64,342 | 1.37 | 53.4 | 46.6 |
| Female | 15,698 | 3.13 | 57.7 | 42.3 |
| Male | 8,569 | 3.22 | 64.5 | 35.5 |
3.05
Average Family Size
2.54
Average Household Size
71.3%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among islander people with a rate of 97.34%.
The highest rate of bachelors degrees is among asian people with a rate of 56.5%.
All
Male
Female
$49,771
Average Earnings
$58,119
Average Male
$41,392
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
91.34% of Ada County, Idaho residents speak only English, while 8.66% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 4.36% of the population.
rate
8.77%
Overall Poverty Rate
8.31%
Male Poverty Rate
9.23%
Female Poverty Rate
The race most likely to be in poverty in Ada County, Idaho is Native, with 23.71% below the poverty level.
The race least likely to be in poverty in Ada County, Idaho is Multiple, with 7.12% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 1.71%. Among those working part-time, it was 13.96%, and for those that did not work, the poverty rate was 14.91%.
Married
Widowed
Divorced
Separated
NeverMarried
53.1%
Overall Marriage Rate
53.8%
Male Marriage Rate
52.5%
Female Marriage Rate
male
female
The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 45-54.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
5.29%
Veteran Poverty Rate
25.75%
Veteran Disability Rate
LaborForceParticipation
66.5%
Labor Force Participation
64.1%
Employment Rate
3.2%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
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.
Europe
Asia
Africa
Oceania
Latin America
North America
40.28%
Born in Ada County, Idaho
94.22%
Native Born
5.78%
Foreign Born
2.7%
Non Citizen
3.09%
Naturalized
94.22% of Ada County, Idaho residents were born in the United States, with 40.28% having been born in Idaho. 2.7% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.