According to the "Code of statistical data on the population of the Transcaucasian region" from 1886, the population of the county was 109,340 people, of which 50,887 (46.5%)
Talysh, 50,510 (46.2%) were
Azerbaijanis, 7,634 were
Russians and 273 (0.2%) were
Armenians.
Russian Empire Census According to the
Russian Empire Census, the Lenkoran
uezd had a population of 130,987 on , including 72,492 men and 58,495 women. The majority of the population indicated Tatar to be their mother tongue, with significant
Talysh and
Russian speaking minorities.
Kavkazskiy kalendar According to the 1917 publication of
Kavkazskiy kalendar, the Lenkoran
uezd had a population of 203,319 on , including 106,891 men and 96,428 women, 195,247 of whom were the permanent population, and 8,072 were temporary residents:
Soviet census (1926) In 1926, the population of the county rose to 208,479. == Notes ==