Diamond Lake township is located in Lincoln County, Minnesota. Diamond Lake township has a 2026 population of 214. Diamond Lake township is currently declining at a rate of -0.47% annually and its population has decreased by 0% since the most recent census, which recorded a population of 214 in 2020.
The median household income in Diamond Lake township is $106,250 with a poverty rate of 3.07%. The median age in Diamond Lake township is 46.4 years: 46.1 years for males, and 53.5 years for females. For every 100 females there are 168.2 males.