[1] The administrative center of the uezd was the village Sarai (present-day Saray).

Shortly after the dissolution of Transcaucasia and the establishment of 3 independent republics including the Azerbaijan Democratic Republic, Baku again became the site of massacre in the revengeful September Days Massacre against the Armenian population, following the Battle of Baku and the city's capture by Ottoman-Azerbaijani forces.

The majority of the population indicated Tatar[b] to be their mother tongue, with significant Russian, Tat, and Armenian speaking minorities.

[7] According to the 1917 publication of Kavkazskiy kalendar, the Baku uezd had a population of 16,268 on 14 January [O.S.

1 January] 1916, including 8,759 men and 7,509 women, 15,746 of whom were the permanent population, and 522 were temporary residents:[8] The population of the uezd rose significantly to 527,220 people by 1926 as a result of the significant expansion of the Baku Oil Fields.