SF meaning in Academic & Science ?

Sioux Falls (; Lakota: Íŋyaŋ Okábleča Otȟúŋwahe; "Stone Shatter City") is the most populous city in the U.S. state of South Dakota and the 131st-most populous city in the United States. It is the county seat of Minnehaha County and also extends into Lincoln County to the south, proximate with the Iowa state line. As of 2020, Sioux Falls had a population of 192,517. The Sioux Falls metro area accounts for more than 30% of the state's entire population. Chartered in 1856 on the banks of the Big Sioux River, the city is situated in the rolling hills at the junction of interstates 29 and 90.

According to Best Life magazine, Sioux Falls is the healthiest city in the United States and is often considered one of the healthiest cities in the US by many other organizations.