The vast 33-acre Casey Lake Park is the crowning jewel of the North St. Paul parks system. In December 2016, construction was completed on a brand new indoor park facility and renovation to the adjacent Booya Building and picnic shelter. That improvement followed the construction of a whimsical playground area, called "Janie's Playground," named in honor of 18-month old Janie Zahradka who loved going to the park with her parents.
The Minnesota Twins donated $25,000 toward field improvements on the adjacent baseball field, now named after Jerry Bell, a life-long North St. Paul resident and former President of the Minnesota Twins baseball club.
The Minnesota Department of Natural Resources partnered with the City and Ramsey-Washington Metro Watershed District in 2013 to restore Casey Lake and bring back native plant and fish populations into the lake; a fishing pier was added in 2015. Casey Lake features a total of three baseball fields, biking and walking trails, tennis court, and skating and hockey rinks.