| Business | Phone |
| Andrean High School 5959 Broadway, Merrillville 46410 | (219) 981-5065 |
| Aquinas Elementary School 801 W 73rd Ave, Merrillville 46410 | (219) 769-2049 |
| Clifford Pierce Middle School 199 E 70th Ave, Merrillville 46410 | (219) 650-5486 |
| Fieler Elementary School 407 W 61st Ave, Merrillville 46410 | (219) 650-5301 |
| Geminus Headstart Xxi 8400 Louisiana St # 4, Merrillville 46410 | (219) 757-1840 |
| Gmor Theological Intl Inst Merrillville 46410 | (219) 922-0451 |
| Happy Days Child Care Ctr 6111 Harrison St, Merrillville 46410 | (219) 980-5437 |
| Homer Iddings Elementary Schl 7249 Van Buren St, Merrillville 46410 | (219) 650-5302 |
| John Wood Elementary School 6100 E 73rd Ave, Merrillville 46410 | (219) 650-5305 |
| Jonas E Salk Elementary School 3001 W 77th Ave, Merrillville 46410 | (219) 650-5304 |
| Keller Graduate School Of Mgmt 1000 E 80th Pl # 609s, Merrillville 46410 | (219) 736-7440 |
| Med Ed Inc 6111 Harrison St # 122, Merrillville 46410 | (219) 981-3000 |
| Merrillville Adult Education 6701 Delaware St, Merrillville 46410 | (219) 650-5310 |
| Merrillville Community Schools 6601 Delaware St, Merrillville 46410 | (219) 650-5311 |
| Merrillville High School 276 E 68th Pl, Merrillville 46410 | (219) 650-5307 |
| Merrillville Intermediate Schl 1400 W 61st Ave, Merrillville 46410 | (219) 650-5306 |
| Merrillville Schools Adm Svc 6701 Delaware St, Merrillville 46410 | (219) 650-5300 |
| Miller Elementary School 5901 Waite St, Merrillville 46410 | (219) 650-5303 |
| Montessori Academy-Northwest 3602 W 80th Ln, Merrillville 46410 | (219) 769-6990 |
| Olympia College 8585 Broadway, Merrillville 46410 | (219) 756-8121 |
| Usa Security 5201 Broadway, Merrillville 46410 | (219) 887-0844 |