| Business | Phone |
| Waterloo Twp Hall 8046 Burton Ln, Potosi 53820 | (608) 725-5130 |
| Potosi Sewage Disposal Plant 100 Plant St, Potosi 53820 | (608) 763-2830 |
| Potosi Township Highway Shop 125 Cross St, Potosi 53820 | (608) 763-2229 |
| Tennyson Village Clerk 100 Tobin Dr, Potosi 53820 | (608) 763-2746 |
| Tennyson Village Clerk 119 Tennyson St, Potosi 53820 | (608) 763-2746 |
| Tennyson Village Hall 101 Bunker Hill St, Potosi 53820 | (608) 763-2912 |