| Business | Phone |
| Atholton Elementary School 6700 Seneca Dr, Columbia 21046 | (410) 313-6853 |
| Atholton High School 6520 Freetown Rd, Columbia 21044 | (410) 313-7065 |
| Bet Yeladim Day Care Ctr 5885 Robert Oliver Pl, Columbia 21045 | (410) 997-7378 |
| Bryant Woods Elementary School 5450 Blue Heron Ln, Columbia 21044 | (410) 313-6859 |
| Cedar Lane School 5451 Beaver Kill Rd, Columbia 21044 | (410) 313-6977 |
| Clemens Crossing Elementary 10320 Quarterstaff Rd, Columbia 21044 | (410) 313-6866 |
| Columbia Academy 10380 Old Columbia Rd, Columbia 21046 | (410) 312-9790 |
| Columbia Academy 7065 Deepage Dr, Columbia 21045 | (410) 312-9088 |
| Columbia Academy 9210 State Route 108, Columbia 21045 | (410) 992-0484 |
| Columbia Academy Elementary 10350 Old Columbia Rd, Columbia 21046 | (410) 312-7413 |
| Columbia Jewish Comm School 5885 Robert Oliver Pl, Columbia 21045 | (410) 730-9355 |
| Columbia Montessori School Inc 10508 Marble Faun Ln, Columbia 21044 | (410) 772-8353 |
| Dasher Green Owen Brown School 6700 Cradlerock Way # 2, Columbia 21045 | (410) 313-7601 |
| Faulkner Ridge Ctr 10598 Marble Faun Ln, Columbia 21044 | (410) 313-7009 |
| Guilford Elementary School 7335 Oakland Mills Rd, Columbia 21046 | (410) 880-5930 |
| Hammond High School 8800 Guilford Rd, Columbia 21046 | (410) 313-7615 |
| Harper's Choice Middle School 5450 Beaver Kill Rd, Columbia 21044 | (410) 313-6929 |
| Howard County Schools-Jeffers 6000 Tamar Dr, Columbia 21045 | (410) 772-2167 |
| Jeffers Hill Elementary School 6000 Tamar Dr, Columbia 21045 | (410) 313-6872 |
| Long Reach High School 6101 Old Dobbin Ln, Columbia 21045 | (410) 313-6600 |
| Longfellow Elementary School 5470 Hesperus Dr, Columbia 21044 | (410) 313-6879 |
| Love-Learning Montessori Schl 9151 Rumsey Rd, Columbia 21045 | (410) 715-9600 |
| Oakland Mills High School 9410 Kilimanjaro Rd, Columbia 21045 | (410) 313-6945 |
| Oakland Mills Middle School 9540 Kilimanjaro Rd, Columbia 21045 | (410) 313-6937 |
| Owen Brown Middle School 6700 Cradlerock Way # 1, Columbia 21045 | (410) 313-7607 |
| Phelps Luck Elementary School 5370 Old Stone Ct, Columbia 21045 | (410) 313-6886 |
| Running Brook Children's Nrsy 5730 Columbia Rd, Columbia 21044 | (410) 997-4662 |
| Running Brook Elementary Schl 5215 W Running Brook Rd, Columbia 21044 | (410) 313-6893 |
| Steven's Forest Elementary 6045 Stevens Forest Rd, Columbia 21045 | (410) 313-6900 |
| Stevens Forest Nursery School 6061 Stevens Forest Rd, Columbia 21045 | (410) 997-0808 |
| Swansfield Elementary School 5610 Cedar Ln, Columbia 21044 | (410) 313-6907 |
| Talbott Springs Elem School 9550 Basket Ring Rd, Columbia 21045 | (410) 313-6915 |
| Temple Isaiah Religious School 5885 Robert Oliver Pl, Columbia 21045 | (410) 992-9144 |
| Thunder Hill Elementary School 9357 Mellenbrook Rd, Columbia 21045 | (410) 313-6922 |
| Tubman Headstart Ctr 8045 Harriet Tubman Ln, Columbia 21044 | (410) 313-7245 |
| Waterloo Elementary School 5940 Waterloo Rd, Columbia 21045 | (410) 313-5014 |
| Wilde Lake Children's Nursery 10598 Marble Faun Ln, Columbia 21044 | (410) 997-4856 |
| Wilde Lake High School 5460 Trumpeter Rd, Columbia 21044 | (410) 313-6965 |
| Wilde Lake Middle School 10481 Cross Fox Ln, Columbia 21044 | (410) 313-6957 |
| Young School 7175 Riverwood Dr, Columbia 21046 | (410) 381-6191 |
| Young School Early Education 8251 Tamar Dr, Columbia 21045 | (410) 740-7476 |
| Young School Early Education 8310 Guilford Rd # F, Columbia 21046 | (410) 381-6098 |