Idaho City is a city located in Boise County Idaho. It is also the county seat of Boise County. With a 2020 population of 471, it is the 134th largest city in Idaho and the 13574th largest city in the United States . Idaho City is currently growing at a rate of 0.43% annually but its population has decreased by -2.89% since the most recent census, which recorded a population of 485 in 2010. Idaho City reached it's highest population of 471 in 2021. Spanning over 1 miles, Idaho City has a population density of 708 people per square mile.
The average household income in Idaho City is $62,879 with a poverty rate of 15.77%. The median rental costs in recent years comes to $482 per month, and the median house value is $133,000. The median age in Idaho City is 39.9 years, 34.8 years for males, and 42.1 years for females.