Sac City is a city located in Sac County Iowa. It is also the county seat of Sac County. With a 2020 population of 2,062, it is the 152nd largest city in Iowa and the 7510th largest city in the United States . Sac City is currently declining at a rate of -0.15% annually and its population has decreased by -7.12% since the most recent census, which recorded a population of 2,220 in 2010. Sac City reached it's highest population of in . Spanning over 5 miles, Sac City has a population density of 424 people per square mile.
The average household income in Sac City is $61,939 with a poverty rate of 17.33%. The median rental costs in recent years comes to $648 per month, and the median house value is $72,300. The median age in Sac City is 46.8 years, 45 years for males, and 49.5 years for females.