| Business | Phone |
| Elbridge Elementary 302 Johnson St W, Hart 49420 | (231) 873-4740 |
| Hart High School 300 Johnson St W, Hart 49420 | (231) 873-5691 |
| Hart Middle School 308 Johnson St W, Hart 49420 | (231) 873-6320 |
| Hart Migrant School 304 Johnson St W, Hart 49420 | (231) 873-6310 |
| Hart Superintendent's Office 301 Johnson St W, Hart 49420 | (231) 873-4080 |
| Hart Upper Elementary School 300 Johnson St W, Hart 49420 | (231) 873-6330 |
| Lake Shore Public Academy 6023 N 72nd Ave, Hart 49420 | (231) 873-8199 |
| Weare School 75 E Jackson Rd, Hart 49420 | (231) 873-0715 |