Most wins in a season: 28 in 1912
Most losses in a season: 22 in 1912
The Estherville, an independent, minor league baseball team, played in the Iowa State League between 1912 and 1912.
Average attendance is based upon the number of actual home dates where known (most leagues from 1992 and later). Where the number of home dates is not known, the average is calculated using half the team's total games.