Arena township is located in Lac qui Parle County, Minnesota. Arena township has a 2026 population of 122. Arena township is currently declining at a rate of -0.81% annually and its population has decreased by -1.61% since the most recent census, which recorded a population of 124 in 2020.
The median household income in Arena township is $70,625 with a poverty rate of 0%. The median age in Arena township is 42.1 years: 42.4 years for males, and 34.8 years for females. For every 100 females there are 125.9 males.