Thank you for your answers! I just want to remind you
Angela, that this data refers to inhabitants of the city of Warsaw only - so all of them were urban dwellers, both Christians and Jews. Warsaw at that time was still a pre-industrial city, though it was already large. I don't think there was so much of animal husbandry in Warsaw going on at that time (but perhaps there was some in the suburbs).
BTW - some population figures for Warsaw (all figures before 1784 are estimates, since 1816 I give also data for Jews):
1564 - 25,000 (at that time there were not yet any Jews in Warsaw)
1654 - 47,500 (another sources gives this number under year 1624)
(...)
1780 - 70,000
1784 - 96,153 (1st census)
1787 - 98,000
1792 - 120,000
(...)
1797 - 64,829 (2nd census) + 10,806 soldiers of the garrison
1810 - 77,727 (3rd census)
(...)
1816 - 81,020 (including 15,579 believers of Judaism -
19,2%)
1817 - 88,362 (including 18,491 believers of Judaism -
20,9%)
1825 - 126,433 (including 28,044 believers of Judaism -
22,2%)
1829 - 139,654 (including 30,943 believers of Judaism -
22,2%)
1832 - 123,535 (including 31,384 believers of Judaism -
25,4%)
(...)
1856 - 156,562 (including 40,992 believers of Judaism -
26,2%)
1864 - 222,906 (including 72,776 believers of Judaism -
32,6%)
1877 - 308,548 (including 102,246 believers of Judaism -
33,1%)
1897 - 625,000 (including 210,500 believers of Judaism -
33,7%)
1900 - 683,692
(...)
1910 - 895,435 (including 308,488 believers of Judaism -
34,5%)
1914 - 885,000 (including 337,000 believers of Judaism -
38,1%)
(...)
1921 - 936,713 (including 310,322 believers of Judaism -
33,1%)
1931 - 1,171,898 (including 352,659 believers of Judaism -
30,1%)
(...)
1941 - 1,351,800 (including 411,000 believers of Judaism -
30,4%)
(...)
1946 - 478,755
==========================
As you can see since 1816 until 1914 % of Jews among the total population of Warsaw was constantly increasing.
That was perhaps due to Jewish population (note that most of them were Orthodox Jews) having more children than Christians. Significant Jewish emigration from Warsaw (mostly to the USA) in the 2nd half of the 19th century and in first years of the 20th century (until WW1) could not "consume" entire natural growth, especially that in addition to slightly higher natural growth than among Christians, there was also Jewish immigration to Warsaw from smaller settlements and from abroad (mostly from the east - so called "Litvaks").
About immigration of Jewish "Litvaks" from the east to Warsaw:
(...) This growth resulted not only from natural increase and migration from the small towns and villages of the Congress Kingdom but also from the movement of Jews from the Russian Pale of Jewish Settlement to Warsaw, which was legal after 1868. This movement intensified after the introduction of new anti-Jewish laws in the tsarist empire after 1881, which did not apply to the Congress Kingdom. In all, by the outbreak of World War I, perhaps 150,000 "Litvaks", as Jews from these areas were called, had moved to Warsaw. (...)