Plainfield, a diverse city in northern New Jersey, offers several quality tutoring options for students looking to improve their academic performance:

1. Kumon Math and Reading Center: Focuses on developing strong math and reading skills through daily practice and individualized instruction.
2. Sylvan Learning Center: Provides personalized tutoring programs in various subjects, including STEM and college prep.
3. Plainfield Public Library Homework Help Center: Offers free homework help and tutoring services to local students.
4. Union County College Learning Center: While primarily for college students, they may offer services to the community as well.
5. Club Z! In-Home Tutoring Services: Provides one-on-one tutoring in the comfort of your home.

For private tutors, consider contacting local schools or the Plainfield Public Library for recommendations. Many certified teachers and college students from nearby universities also offer private tutoring services.