Richfield is a city located in Lincoln County Idaho. With a 2020 population of 492, it is the 131st largest city in Idaho and the 13374th largest city in the United States . Richfield is currently declining at a rate of -0.40% annually but its population has increased by 2.07% since the most recent census, which recorded a population of 482 in 2010. Richfield reached it's highest population of 498 in 2018. Spanning over 1 miles, Richfield has a population density of 750 people per square mile.
The average household income in Richfield is $50,736 with a poverty rate of 14.29%. The median rental costs in recent years comes to $611 per month, and the median house value is $126,500. The median age in Richfield is 37.8 years, 38.3 years for males, and 37.3 years for females.