Below are a list of the cities located in Sweet Grass County, MT. There are 4 total unique zip codes in Sweet Grass County, Montana. The time zone for Sweet Grass County is the Mountain Daylight Time zone and they follow daylight savings time. The Federal Information Processing System (FIPS) Code for echo $county.' County, '.$state_abbrev ?> is 30097.
The population in Sweet Grass County, MT is currently 3,723. That is a decrease of 0.00% vs the population of 3,651 in 2010.