Ada County , Idaho
Ada County: County in Idaho, United States
About
Ada County is a county located in the U.S. state of Idaho. As of the 2010 census, the population was 392,365 and a population density of 143 people per km². After 9 years in 2019 county had an estimated population of 481,587 inhabitants. Its county seat is Boise. The county was created 156 years ago in 1864.
Geography
Ada County is located at 43°27'4"N 116°14'28"W (43.4511200, -116.2410900). It has 5 neighbors: Elmore County, Boise County, Canyon County, Gem County and Owyhee County.
The largest city of Ada County is Boise with a population of 228,959. Other cities include, Meridian population 114,161, Eagle population 29,796, Kuna population 22,257 and Garden City population 11,969. See all Ada County cities & populated places.
- Official Website
Official website of Ada County
Ada County map
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Ada County Quick Facts
| Population : | 481,587 (2019) |
| Country : | United States of America |
| State : | Idaho (United States) |
| Area : | 2746 km2 |
| Water as percent of area : | 0.7% |
| Land as percent of area : | 99.3% |
| Named for : | Ada Riggs |
| Altitude : | 3,179 feet / 969 meters |
| Capital : | Boise |
| Establishment : | December 12, 1864 |
| Time Zone : | America/Boise |
| Local time : | 09:10:57 (14th June 2021) |
| Density : | 175 Pop. per km² as of 2019 |
| Population growth : | 18.53% (2010-2019) |
Ada County has 5 neighbours.
- Elmore County county in Idaho, United States
- Boise County county in Idaho, United States
- Canyon County county in Idaho, United States
- Gem County county in Idaho, United States
- Owyhee County county in Idaho, United States
- Boise
Demographics
The population of Ada County increased by 18.53% in 9 years.
| Year | Population | % Change | Method |
| 2010 | 392,365 | - | census |
| 2011 | 401,262 | 2.22% | estimation process |
| 2012 | 408,862 | 1.86% | estimation process |
| 2013 | 415,951 | 1.7% | estimation process |
| 2014 | 425,471 | 2.24% | estimation process |
| 2015 | 432,862 | 1.71% | estimation process |
| 2016 | 444,486 | 2.62% | estimation process |
| 2017 | 456,548 | 2.64% | estimation process |
| 2018 | 468,764 | 2.61% | estimation process |
| 2019 | 481,587 | 2.66% | estimation process |
Ada County Populated Places
Cities, Towns, Neighborhoods & Other Populated Places in Ada County.
| City Name | Population | Title |
|---|---|---|
| Boise | 228,959 | City in and state capital of Idaho, United States |
| Meridian | 114,161 | City in Ada County, Idaho, United States |
| Eagle | 29,796 | City in Ada County, Idaho, United States |
| Kuna | 22,257 | City in Ada County, Idaho, United States |
| Garden City | 11,969 | City in Ada County, Idaho, United States |
| Star | 10,532 | City in Ada County, Idaho, United States |
Idaho Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| Idaho | 1,787,065 | State of the United States of America |
| Canyon County | 229,849 | County in Idaho, United States |
| Boise | 228,959 | City in and state capital of Idaho, United States |
| Kootenai County | 165,697 | County in Idaho, United States |
| Bonneville County | 119,062 | County in Idaho, United States |
| Meridian | 114,161 | City in Ada County, Idaho, United States |
| Nampa | 99,277 | City in Canyon County, Idaho, United States |
| Bannock County | 87,808 | County in Idaho, United States |
| Twin Falls County | 86,878 | County in Idaho, United States |
| Idaho Falls | 62,888 | City in and the county seat of Bonneville County, Idaho, United States |
| Caldwell | 58,481 | City in and county seat of Canyon County, Idaho, United States |
| Pocatello | 56,637 | City in Idaho |
| Coeur d'Alene | 52,414 | City in Idaho, United States |
| Twin Falls | 50,197 | City in Twin Falls County, Idaho, United States |
| Bingham County | 46,811 | County in Idaho, United States |
| Bonner County | 45,739 | County in Idaho, United States |