Year & population Year & population
1561— 936 1651 – 1850
1571— 949 1661— 1750
1581— 806 1671— 1550
1591— 1079 1681— 1645
1601— 988 1691— 1785
1611— 988 1701 – 1830
1621— 1040 1711— 1722
1631— 1001 1721 – 1638
1641— 1320 1731 – 1372
These estimates made by Dr Michael Brooks are based on analysis of births, marriages and deaths from the St Mary’s Church parish records. Population figures were affected by many diseases including plague. Smallpox, enteric fevers, the venereal diseases, typhus and influenza, typhoid and cholera were commonly fatal.
By 1832, the population of Amersham was 2,816 and of Chesham Bois , which then included part of Chesham Moor, was 157. By 2011, the population of Amersham was about 23,000.