Jerome is a city located in Jerome County Idaho. It is also the county seat of Jerome County. With a 2020 population of 12,320, it is the 19th largest city in Idaho and the 2664th largest city in the United States . Jerome is currently growing at a rate of 1.34% annually and its population has increased by 13.13% since the most recent census, which recorded a population of 10,890 in 2010. Jerome reached it's highest population of 12,320 in 2021. Spanning over 6 miles, Jerome has a population density of 2,209 people per square mile.
The average household income in Jerome is $53,840 with a poverty rate of 26.07%. The median rental costs in recent years comes to $779 per month, and the median house value is $128,800. The median age in Jerome is 31.1 years, 29 years for males, and 32.1 years for females.