New Bethlehem Little League helps maintain fields at three locations. The main NBLL complex has been located at the end of Park Avenue since the league was founded in 1949. The main complex has three fields and is home to NBLL's Tee Ball, Minor Baseball, Major Baseball, and all softball programs. The main complex is also home to the Redbank Valley High School varsity softball program.

While there is no official street address for the NBLL complex, visitors can find the simplest directions by using the Redbank Valley Primary School's address in their favorite navigation app. The Primary School's address is 600 Vine Street, New Bethlehem, PA 16242.

New Bethlehem Little League also maintains one field at the Oak Ridge Ballfield. The field was home to NBLL's Junior League Baseball program as well as the Redbank Valley High School baseball program through 2017. The Oak Ridge field is located on Mt. Zion Road in Oak Ridge, PA.

In 2018 the NBLL Junior League baseball and RVHS varsity baseball programs moved to a newly constructed field at the Redbank Valley Municipal Park in Hawthorn, PA. NBLL, RVHS, and the park board jointly maintain the field.