| Year | Census | Index | Notes |
| 1633-1699 | Book | ||
| 1732 | Book | ||
| 1773, 1786 | Fiche | Call # Microfiche 607 | |
| 1776 | Book | ||
| 1790 | Film | CD, Book | |
| 1800 | Film | CD, Book | |
| 1810 | Film | CD, Book | |
| 1820 | Film | Book | |
| 1830 | Film | Book | |
| 1840 | Film | Book | |
| 1850 | Film | Book | |
| 1860 | Film* | Partial; see below | |
| 1870 | Film* | CD | |
| 1870 African-American | CD | Film partial; see below | |
| 1880 | Film* | CD | Film partial; see below |
| 1890 Veterans | Film | ||
| 1920 | Ancestry.com | ||
| 1930 | Ancestry.com |
* 1860 Film includes Belknap, Carroll, Cheshire, Coos, & Grafton (part) Counties
* 1870 Film includes Belknap, Carroll, Cheshire, Coos, Grafton, & Hillsboro (part) Counties
* 1880 Film includes Cheshire County