For postal purposes, addresses in the eastern portion of the unorganized territory (including Terminal 1 of the Minneapolis St. Paul International Airport and the Fort Snelling historic site) are in zip code 55111 with a Saint Paul mailing address, while addresses in the western part of the territory (including the airport's Terminal 2 and the Metropolitan Airports Commission offices) are in zip code 55450 and have a Minneapolis mailing address.[2] According to the United States Census Bureau, this unorganized territory has a total area of 17.2 km2 (6.7 mi2). 16.5 km2 (6.4 mi2) of it is land and 0.8 km2 (0.3 mi2) of it is water.
Fort Snelling was listed as an incorporated village during the 1890 Census.[8]
In the era after World War II, residents of the unorganized territory were service members stationed at the barracks at Fort Snelling, and military families living on base housing in the Upper Post area. Over time, some parts of the fort were demolished to expand Minneapolis–Saint Paul International Airport, and the Upper Post was abandoned as housing in 1973 with ownership transferred to the Minnesota Department of Natural Resources.[9] In the 2010s, private housing started to be developed in the Upper Post. This began with a newly built apartment complex that opened in 2015, followed by a redevelopment of all the remaining Upper Post buildings that was completed in 2022. All of this new housing is intended primarily for veterans and their families, with funding provided by federal, state, and local historical preservation and affordable housing funds.[10][11][12][13]
As of the census[14] of 2020, 322 people resided in 239 households in the unorganized territory. 83.5% of households spoke English at home and 14.6% spoke Spanish. The median household income was $18,594. 31.1% of the population was below the poverty line.