| Business | Phone |
| Hampstead Adjustment Board 11 Main St, Hampstead 3841 | (603) 329-6181 |
| Hampstead Code Enforcement 11 Main St, Hampstead 3841 | (603) 329-5846 |
| Hampstead Meeting House 20 Emerson Ave, Hampstead 3841 | (603) 329-4213 |
| Hampstead Selectmen 11 Main St, Hampstead 3841 | (603) 329-5011 |
| Hampstead Town Of Beach Ells Rd, Hampstead 3841 | (603) 329-4397 |