Welcome to Ada County ...
Time Zone: Ada County lies in the Mountain Time Zone (MST/MDT) and observes daylight saving time.
The community of Boise City is the Seat for Ada County. Boise City is also the capital of Idaho.
Ada County was founded in 1864 and was created by taking area from Boise County.
From the Census Estimates for 2019, <1> Ada had a population of 481,880 people. This is an increase of 22.81% since the last Census (which gave a population of 392,365 people in 2010).
At the time of the 2010 Census, Ada represented 25.03% of the total population of Idaho.
Below are some of the communities located in Ada County:
- Boise City
(5 miles [8 km] to the northeast)
- Jump to our Gazetteer entry for Boise City
- Boise City is located in Ada County (ID)
- Population from the 2020 Census: 229,776 people
- Former name for Boise City:
- Boise City
- Jump to TripAdvisor's Tourism page for Boise City <2>
- Eagle
(10 miles [16.1 km] to the north)
- Garden City
(7 miles [11.3 km] to the north)
- Note: The GPS coordinates that we are using for Garden City have been provided by the GNIS.<3> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Garden City
- Garden City is located in Ada County (ID)
- Population from the 2020 Census: 11,920 people
- Jump to TripAdvisor's Tourism page for Garden City <2>
- Kuna
(8 miles [12.9 km] to the southwest)
- Meridian
(6 miles [9.7 km] to the northwest)
- Star
(14 miles [22.5 km] to the northwest)
- Note: The GPS coordinates that we are using for Star have been provided by the GNIS.<3> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Star
- Star is located in Ada County (ID)
- Population from the 2020 Census: 11,259 people
- Jump to TripAdvisor's Tourism page for Star <2>
Websites of Interest ...
- Websites specific to Idaho
- Websites specific to Ada County
- Websites for nearby counties
- Boise County
- Canyon County
- Elmore County
- Gem County
- Owyhee County
- Cemetery Information and Directories
Footnotes ...
<1> | On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2010 Census and the next count will be for the 2020 Census. For more information, please visit the U.S. Census Bureau. |
<2> | While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program. |
<3> | The location has been supplied by the Geographic Names Information System - which is maintained by the U.S. Geological Survey (USGS). While these values should be definitive, we found that accuracy can vary and you should double-check the location if accuracy is required. |