| Business | Phone |
| Grafton County Attorney's Office 3785 Dartmouth College Hwy, North Haverhill 3774 | (603) 787-6968 |
| Grafton County Civil Div 3785 Dartmouth College Hwy, North Haverhill 3774 | (603) 787-2111 |
| Grafton County Commissioner's 3855 Dartmouth College Hwy # 1, North Haverhill 3774 | (603) 787-6941 |
| Grafton Register Of Deeds 3785 Dartmouth College Hwy, North Haverhill 3774 | (603) 787-6921 |
| Grafton Register Of Probate 3785 Dartmouth College Hwy, North Haverhill 3774 | (603) 787-6931 |
| Grafton Unh Cooperative Ext 3785 Dartmouth College Hwy, North Haverhill 3774 | (603) 787-6944 |