Great Falls, Montana

Great Falls population, 2020 to 2024

Great Falls lost 440 residents from July 2020 to July 2024, a change of -0.7%. In the latest year it moved by -230. Among 19 Montana places of 5,000 or more, that growth ranks 17th; the median place changed by +5.1%. The median place of 5,000+ in Montana has 9,256 people, so Great Falls is 6.5 times that size.

Great Falls covers 23.13 square miles of land and 0.48 of water, for 2,595 people per square mile of land. The median Montana place of 5,000+ has 2,232, so Great Falls is denser than the typical town.

What county Great Falls is in

All of Great Falls's residents live in Cascade County, which had 84,523 residents in 2024. Great Falls holds 71.0% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Great Falls

3 ZIP Code Tabulation Areas (ZCTAs) overlap Great Falls by at least 10% of the ZCTA's or the city's land: 59401, 59404, 59405. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Great Falls is

The Census internal point of Great Falls is at 47.502500, -111.300000. Helena, the capital, is 71.8 miles SSW in a straight line. The nearest larger place is Missoula, MT (78,204 people), 135.1 miles away. The nearest city of 100,000 or more is Billings, MT, 176.1 miles away.

Daylight in Great Falls

At 47.50° N, Great Falls gets about 15 h 58 min of daylight around the June solstice and 8 h 26 min around the December solstice, a swing of 7 h 32 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Great Falls

The eight nearest incorporated places of 1,000+ in Montana, measured between internal points. The closest is Fort Benton, 37.5 miles away, with 1,422 people.