- Mount Union Area Chamber-Cmmrc
- Mount Union Area Medical Ctr
- Mount Union Area School Adm
- Mount Union Beverage Co
- Mount Union Boro Mayor
- Mount Union Headstart
- Mount Union Junior High School
- Mount Union Minit Mart
- Mount Union Plumbing & Heating
- Mount Union Police Dept
- Mount Union Senior High School
- Mount Union Volunteer Fire Co
- Mount Union Water Treatment
- Mount Union Wesleyan Church