An imaging device including a board section on which imaging element is loaded, a first housing section for fixing board section from a surface on which imaging element is loaded; a second housing section for fixing board section from a surface opposite to the surface on which imaging element is loaded; and a lens section attached to the first housing section side; and the first housing section and the second housing section are fixed by attachment members so as to sandwich board section. The first housing section may be configured from board fixing member for fixing board section, and the lens attachment member for attaching lens section that is fixed to board fixing member in a positionally adjustable manner.