| Business | Phone |
| Mountain Lake Ambulance 1100 11th St, Mountain Lake 56159 | (507) 427-2999 |
| Mountain Lake City Offices 1025 2nd Ave, Mountain Lake 56159 | (507) 427-2999 |
| Mountain Lake City Offices 930 3rd Ave, Mountain Lake 56159 | (507) 427-2999 |
| Mountain Lake Housing 1225 3rd Ave, Mountain Lake 56159 | (507) 427-2425 |
| Mountain Lake Municipal Ofc 1025 2nd Ave, Mountain Lake 56159 | (507) 427-2633 |