Ada County, Idaho Cities (2024)

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

City
Rank
2024 Pop.
2020 Pop.
Change
Density (/mi²)
Area (mi²)
Type
Boise City1235,216236,034-0.09%2,78284.6City
Meridian2139,920119,4433.8%3,79636.9City
Eagle332,80230,8701.49%1,01032.5City
Kuna429,23824,4844.23%1,13925.7City
Star517,96111,4479.97%1,8479.7City
Garden City612,94712,2951.27%3,1734.1City
Hidden Springs73,8013,4162.92%1,4432.6CDP
Avimor81,5331,2117.65%1,1261.4CDP
Robie Creek91,2501,3800.56%4230.1CDP

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Ada County, Idaho?

Boise City is the largest city in Ada County.

What is the smallest city in Ada County, Idaho?

Robie Creek is the smallest city in Ada County.

How many cities are in Ada County?

There are 9 cities in Ada County, Idaho.

Frequently Asked Questions