Declo is a city located in Idaho. With a 2020 population of 373, it is the 145th largest city in Idaho and the 14518th largest city in the United States. Declo is currently growing at a rate of 0.81% annually and its population has increased by 8.75% since the most recent census, which recorded a population of 343 in 2010. Spanning over 0 miles, Declo has a population density of 1,348 people per square mile.
The average household income in Declo is $49,353 with a poverty rate of 18.91%. The median rental costs in recent years comes to $643 per month, and the median house value is $93,300. The median age in Declo is 30.7 years, 22.9 years for males, and 30.8 years for females. For every 100 females there are 106.3 males.