Old Agency is a city located in Montana. Old Agency has a 2020 population of 88. Old Agency is currently declining at a rate of 0.00% annually and its population has decreased by -17.76% since the most recent census, which recorded a population of 107 in 2010. Old Agency reached it's highest population of 162 in 2012.
The average household income in Old Agency is $16,285 with a poverty rate of 71.59%. The median rental costs in recent years comes to $400 per month, and the median house value is $27,500. The median age in Old Agency is 42.4 years, 42.5 years for males, and 38.5 years for females. For every 100 females there are 137.8 males.