ZUMBROTA, Minn. – This Zumbro River city, population 3,200, expects to have a new $4.3 million swimming pool open in 2026, said Brian Grudem, city administrator. Voters approved a $3 million tax increase 490-205 this week to replace a pool that’s been closed for disrepair. The $1,3 million shortfall, Grudem said, will need to come donations and grants.