At the time of the 2006 National Census, the village's population was 1,385 in 286 households.[4] The following census in 2011 counted 1,417 people in 343 households.[5] The 2016 census measured the population of the village as 1,450 people in 402 households.[2]
In March 2022, Mirbag-e Jonubi and Mirbag-e Shomali Rural Districts were separated from the district in the establishment of Mirbag District. Shahnabad merged with the village of Farhadabad to form the new village of Mirbag.[6]
^Shahnabad can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3084012" in the "Unique Feature Id" form, and clicking on "Search Database".