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We are located approximately 20 miles south of Chicago in Posen, Illinois. We currently have more than 1500 students enrolled and 87 certified teachers. There are five schools in the District serving Pre-Kindergarten through eighth grade students from the communities of Posen, Robbins, Blue Island, Markham and Harvey.


Hours of Operation

Monday - Friday

8:00 am - 4:00 pm (Holiday hours will vary)

Summer Hours:

Monday - Thursday,

8:00 am - 3:00 pm

Friday, Closed

Contact Us

14011 Harrison Ave., 

Posen, IL 60469



In partnership with staff, students and community, the mission of the Posen-Robbins School District 143½ is to provide an educational environment that will enable all students to develop essential academic skills for a lifetime of learning and to prepare students to be responsible, contributing citizens in a diverse and changing world.


We believe:
  • Change is inevitable and ongoing
  • All individuals have worth and value
  • Individuals are responsible for their actions
  • Learning is essential for a productive community
  • An educated citizenry is essential for democracy to thrive
  • Learning is a life-long process and everyone can learn
  • Everyone is involved in the act of teaching; thus to enhance self-esteem, growth and development we must embrace our duty to impart the educational experience