| Annual Estimates of the Population for Counties of New Hampshire: April 1, 2000 to July 1, 2006 | |||||||||
| Geographic Area | Population Estimates | April 1, 2000 | |||||||
| July 1, 2006 | July 1, 2005 | July 1, 2004 | July 1, 2003 | July 1, 2002 | July 1, 2001 | July 1, 2000 | Estimates Base | Census | |
| New Hampshire | 1,314,895 | 1,306,819 | 1,297,961 | 1,285,918 | 1,273,970 | 1,258,408 | 1,240,664 | 1,235,786 | 1,235,786 |
| Belknap County | 61,562 | 61,422 | 60,995 | 60,148 | 59,157 | 57,930 | 56,582 | 56,325 | 56,325 |
| Carroll County | 47,475 | 47,048 | 46,847 | 45,985 | 45,288 | 44,360 | 43,918 | 43,666 | 43,666 |
| Cheshire County | 77,393 | 77,053 | 76,735 | 76,089 | 75,088 | 74,417 | 73,997 | 73,825 | 73,825 |
| Coos County | 33,019 | 33,156 | 33,058 | 33,036 | 33,011 | 33,015 | 33,158 | 33,111 | 33,111 |
| Grafton County | 85,336 | 84,793 | 84,097 | 83,347 | 82,593 | 82,000 | 81,835 | 81,743 | 81,743 |
| Hillsborough County | 402,789 | 400,516 | 398,217 | 394,366 | 391,937 | 388,608 | 382,434 | 380,843 | 380,841 |
| Merrimack County | 148,085 | 146,823 | 145,309 | 143,697 | 141,743 | 138,797 | 136,719 | 136,225 | 136,225 |
| Rockingham County | 296,267 | 294,211 | 292,016 | 290,052 | 287,673 | 283,766 | 278,774 | 277,357 | 277,359 |
| Strafford County | 119,990 | 118,998 | 118,224 | 117,185 | 116,036 | 114,522 | 112,685 | 112,233 | 112,233 |
| Sullivan County | 42,979 | 42,799 | 42,463 | 42,013 | 41,444 | 40,993 | 40,562 | 40,458 | 40,458 |
Source: Population Division, U.S. Census Bureau