| School Name | Grades | Address | Zip | Phone | County | Type | District Name |
| Acad-Academic & Civic Development | n/a | 1700 W. Front Street
Plainfield, NJ | 07060 | | Union | public | Plainfield School District |
| Cedarbrook Elementary School | K-5 | 1049 Central Ave
Plainfield, NJ | 07060 | (908) 731-4280 | Union | public | Plainfield School District |
| Central Jersey Arts Charter School | K-8 | 1225 South Avenue
Plainfield, NJ | 07062 | (908) 753-0030 | Union | charter | Central Jersey Arts Charter School |
| Charles H. Stillman Elementary School | K-5 | 201 W Fourth St
Plainfield, NJ | 07060 | (908) 731-4240 | Union | public | Plainfield School District |
| Clinton Elementary School | K-5 | West 4th St. and Clinton
Plainfield, NJ | 07063 | (908) 731-4218 | Union | public | Plainfield School District |
| Dewitt D. Barlow Elementary School | K-5 | E. Front & Farragut
Plainfield, NJ | 07060 | (908) 731-4300 | Union | public | Plainfield School District |
| Emerson Elementary School | K-5 | 305 Emerson Ave
Plainfield, NJ | 07062 | (908) 731-4205 | Union | public | Plainfield School District |
| Evergreen Elementary School | K-5 | 1033 Evergreen Ave
Plainfield, NJ | 07060 | (908) 731-4260 | Union | public | Plainfield School District |
| Frederic W. Cook Elementary School | K-5 | 739 Leland Ave
Plainfield, NJ | 07062 | (908) 731-4215 | Union | public | Plainfield School District |
| Harvest Learning Center | PK-2, 6-7 | 117 New St
Plainfield, NJ | 07061 | (908) 754-7676 | Union | private | |
| Hubbard Middle School | 6-8 | 661 W Eighth St
Plainfield, NJ | 07060 | (908) 731-4320 | Union | public | Plainfield School District |
| Jefferson Elementary School | K-5 | 1200 Myrtle Ave
Plainfield, NJ | 07063 | (908) 731-4250 | Union | public | Plainfield School District |
| Koinonia Academy | K-12 | 1040 Plainfield Ave
Plainfield, NJ | 07060 | (908) 668-9002 | Union | private | |
| Maxson Middle School | 6-8 | 920 E Seventh St
Plainfield, NJ | 07062 | (908) 731-4310 | Union | public | Plainfield School District |
| Messiah Lutheran School | PK-2 | 630 E Front Street
Plainfield, NJ | 07060 | (908) 755-8430 | Union | private | |
| New Covenant Christian Academy | K-12 | 315 W. 7th St.
Plainfield, NJ | 07060 | (908) 756-3322 | Union | private | |
| Plainfield Academy for the Arts and Advanced Studies | n/a | 1700 West Front Street
Plainfield, NJ | 07063 | | Union | public | Plainfield School District |
| Plainfield High School | 9-12 | 950 Park Avenue
Plainfield, NJ | 07060 | (908) 731-4393 | Union | public | Plainfield School District |
| Queen City Academy Charter School | K-8 | 815 West Seventh Street
Plainfield, NJ | 07063 | (908) 753-4700 | Union | charter | Queen City Academy Charter School |
| Star Bright Christian Learning | PK-2 | 145 Park Ave
Plainfield, NJ | 07060 | (908) 756-7927 | Union | private | |
| The Newmark School | 2-8 | 365 Emerson Ave
Plainfield, NJ | 07062 | (908) 753-0330 | Union | private | |
| The Sundance School | PK-4 | 401 Greenbrook Rd
Plainfield, NJ | 07063 | (908) 561-5055 | Union | private | |
| Toddlers Learning Center | K-1 | 420-422 East 6th Street
Plainfield, NJ | 07060 | (908) 769-8593 | Union | private | |
| Union County Teams Charter School | K-8 | 515-517 West Fourth Street
Plainfield, NJ | 07060 | (908) 754-9043 | Union | charter | Union County Teams Charter School |
| Washington Elementary School | PK-5 | 427 Darrow Ave
Plainfield, NJ | 07060 | (908) 731-4230 | Union | public | Plainfield School District |
| Woodland Elementary School | K-5 | 730 Central Street
Plainfield, NJ | 07062 | (908) 731-4290 | Union | public | Plainfield School District |
