| Official Name: | Sedan, Montana |
| Settlement Type: | Census-designated place |
| Mapsize: | 250px |
| Pushpin Map: | Montana#USA |
| Pushpin Label: | Sedan |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Montana |
| Subdivision Type2: | County |
| Subdivision Name2: | Gallatin |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 158.15 |
| Area Land Km2: | 157.96 |
| Area Water Km2: | 0.19 |
| Area Total Sq Mi: | 61.06 |
| Area Land Sq Mi: | 60.99 |
| Area Water Sq Mi: | 0.07 |
| Population As Of: | 2020 |
| Population Total: | 101 |
| Population Density Km2: | 0.64 |
| Population Density Sq Mi: | 1.66 |
| Timezone: | Mountain (MST) |
| Utc Offset: | -7 |
| Timezone Dst: | MDT |
| Utc Offset Dst: | -6 |
| Elevation M: | 1737 |
| Coordinates: | 45.9633°N -110.8794°W |
| Area Code: | 406 |
| Blank Name: | FIPS code |
| Blank Info: | 30-67075 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2583844 |
Sedan is a census-designated place (CDP) in Gallatin County, Montana, United States. The population was 99 at the 2010 census.[2] It is located on Montana Highway 86, 27 miles from Bozeman. The Zip Code 59086.
This climatic region is typified by large seasonal temperature differences, with warm to hot (and often humid) summers and cold (sometimes severely cold) winters. According to the Köppen Climate Classification system, Sedan has a humid continental climate, abbreviated "Dfb" on climate maps.[3]
It is in Shields Valley Elementary School District and the Bozeman High School District.[4] The high school district is a part of Bozeman Public Schools.[5]