#17: South Dakota
Average tip: 16.1%
Percentage of rude drivers: 3%
South Dakota’s laid-back charm may seem incompatible with a spot on this list, but urban growth has introduced subtle shifts in attitudes. Residents tip an average of 16.1%, and 3% of drivers are noted for rude habits, primarily in Rapid City and Sioux Falls.

The state’s wide-open spaces and smaller communities generally foster a sense of friendliness and hospitality, but in busier areas, residents might exhibit a more reserved demeanor. The influx of visitors to iconic attractions like Mount Rushmore occasionally leads to impatience, though most interactions remain positive and welcoming.