| Adventure Montessori Academy and School | 4101 Pleiades Place, Union City, CA 94587 | Preschool |
| CFCS Head Start - Decoto Plaza | 500 "e" Street, Union City, CA 94587 | Preschool |
| Free To Be Pre-school | 188 Appian Way, Union City, CA 94587 | Center |
| Holly Preschool | 31600 Alvarado Boulevard, Union City, CA 94587 | Preschool |
| Kennedy PreSchool | 1333 Decoto Rd, Union City, CA 94587 | Preschool |
| Kidango Alvarado Center - CLOSED | 31100 Fredi Street, Union City, CA 94587 | Preschool |
| Kidango Cabello Center | 4500 Cabello Street, Union City, CA 94587 | Preschool |
| Kidango Decoto Center | 600 G Street, Union City, CA 94587 | Preschool |
| Kidango Eastin Center - CLOSED | 34901 Eastin Drive, Union City, CA 94587 | Preschool |
| Kidango Guy Emanuele Center | 100 Decoto Road, Union City, CA 94587 | Preschool |
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| Kidango Kitayama Center | 1959 Sunsprite Drive, Union City, CA 94587 | Preschool |
| Kidango Logan Center | 33821 Syracuse Avenue, Union City, CA 94587 | Preschool |
| Kidango Pioneer Center | 32737 Bel Aire Street, Union City, CA 94587 | Preschool |
| Kidango Searles Center | 33629 15th Street, Union City, CA 94587 | Preschool |
| Little Peoples Preschool & Day Care | 33700 Alvarado - Niles Road, Union City, CA 94587 | Preschool |
| Safari Kid | 4500 Cabello St. Class #23-26, Union City, CA 94587 | Preschool |