2018 New Hampshire elections
New Hampshire state elections in 2018 were held on Tuesday, November 6, 2018, with the primary elections being held on June 5, 2018. Voters elected two members to the United States House of Representatives, the governor of New Hampshire, all five members to the Executive Council, all 24 members to the New Hampshire Senate, and all 400 members to the New Hampshire House of Representatives, and other local elected offices.
Overview
Turnout
Primary election
The primary election was held on Tuesday, June 5, 2018.Turnout by county:
| County | Registered voters | Ballots cast | Turnout |
| Belknap County | 46,189 | 11,352 | 24.58% |
| Carroll County | 37,233 | 11,274 | 30.28% |
| Cheshire County | 57,022 | 12,641 | 22.17% |
| Coos County | 20,094 | 4,599 | 22.89% |
| Grafton County | 67,404 | 14,536 | 21.56% |
| Hillsborough County | 270,722 | 63,357 | 23.40% |
| Merrimack County | 109,163 | 28,302 | 25.93% |
| Rockingham County | 234,112 | 54,722 | 23.37% |
| Strafford County | 92,087 | 20,965 | 22.77% |
| Sullivan County | 28,370 | 6,514 | 22.96% |
| Totals | 962,396 | 228,262 | 23.72% |
General election
The general election was held on Tuesday, November 6, 2018.Turnout by county:
| County | Registered voters | Ballots cast | Turnout |
| Belknap County | 47,856 | 27,229 | 56.90% |
| Carroll County | 40,166 | 24,336 | 60.59% |
| Cheshire County | 60,018 | 32,789 | 54.63% |
| Coos County | 20,595 | 11,788 | 57.23% |
| Grafton County | 71,748 | 40,758 | 56.81% |
| Hillsborough County | 282,659 | 164,337 | 58.14% |
| Merrimack County | 113,433 | 65,887 | 58.08% |
| Rockingham County | 244,859 | 141,565 | 57.81% |
| Strafford County | 98,529 | 54,072 | 54.88% |
| Sullivan County | 29,141 | 17,453 | 59.89% |
| Totals | 1,009,004 | 580,214 | 57.50% |