| Names on Checklist | |||||
| Rockingham | Republican | Democratic | Undeclared | New Reg | Totals |
| County | |||||
| 11/3/98 | |||||
| Atkinson | 1,584 | 898 | 1,902 | 32 | 4,416 |
| Auburn | 1,198 | 679 | 950 | 36 | 2,863 |
| Brentwood | 751 | 410 | 648 | 35 | 1,844 |
| Candia | 1,314 | 531 | 835 | 54 | 2,734 |
| Chester | 985 | 386 | 841 | 31 | 2,243 |
| Danville | 606 | 365 | 772 | 34 | 1,777 |
| Deerfield | 1,105 | 526 | 846 | 75 | 2,552 |
| Derry | 7,189 | 4,249 | 6,725 | 201 | 18,364 |
| East Kingston | 539 | 265 | 483 | 10 | 1,297 |
| Epping | 920 | 751 | 1,966 | 43 | 3,680 |
| Exeter | 3,959 | 2,801 | 3,113 | 195 | 10,068 |
| Fremont | 696 | 319 | 781 | 25 | 1,821 |
| Greenland | 792 | 448 | 639 | 78 | 1,957 |
| Hampstead | 2,127 | 1,243 | 2,181 | 61 | 5,612 |
| Hampton | 3,776 | 3,390 | 4,423 | 138 | 11,727 |
| Hampton Falls | 725 | 283 | 442 | 31 | 1,481 |
| Kensington | 416 | 290 | 651 | 22 | 1,379 |
| Kingston | 1,504 | 786 | 1,159 | 35 | 3,484 |
| Londonderry | 5,775 | 3,289 | 4,662 | 207 | 13,933 |
| New Castle | 358 | 174 | 323 | 30 | 885 |
| Newfields | 282 | 201 | 434 | 26 | 943 |
| Newington | 281 | 106 | 166 | 10 | 563 |
| Newmarket | 1,230 | 1,799 | 2,738 | 164 | 5,931 |
| Newton | 756 | 624 | 1,313 | 15 | 2,708 |
| North Hampton | 1,331 | 792 | 1,369 | 55 | 3,547 |
| Northwood | 812 | 451 | 677 | 52 | 1,992 |
| Nottingham | 838 | 578 | 813 | 48 | 2,277 |
| Plaistow | 1,546 | 1,079 | 2,478 | 34 | 5,137 |
| Portsmouth Ward 1 | 536 | 1,000 | 1,141 | 56 | 2,733 |
| Portsmouth Ward 2 | 852 | 1,605 | 1,739 | 112 | 4,308 |
| Portsmouth Ward 3 | 515 | 678 | 891 | 23 | 2,107 |
| Portsmouth Ward 4 | 1,177 | 1,289 | 1,392 | 71 | 3,929 |
| Portsmouth Ward 5 | 1,060 | 1,449 | 1,624 | 77 | 4,210 |
| Raymond | 1,595 | 1,126 | 2,462 | 63 | 5,246 |
| Rye | 1,910 | 1,110 | 1,525 | 86 | 4,631 |
| Salem | 5,642 | 5,492 | 5,764 | 131 | 17,029 |
| Sandown | 930 | 586 | 1,172 | 24 | 2,712 |
| Seabrook | 1,693 | 1,400 | 2,476 | 36 | 5,605 |
| South Hampton | 157 | 131 | 278 | 4 | 5710 |
| Stratham | 1,796 | 866 | 1,627 | 136 | 4,425 |
| Windham | 2,767 | 1,409 | 2,452 | 104 | 6,732 |
| Totals | 64,025 | 45,854 | 71,873 | 2,700 | 184,452 |
|Summary of Names on Checklist| Belknap County | Carroll County | Cheshire County | Coos County | Grafton County | Hillsborough County | Merrimack County | Strafford County | Sullivan County |