65,000 inhabitants (including the garrison; in 1885 there were 4,800 soldiers in the garrison)
1890
69,627 inhabitants (census data) (51% Poles)
1895
73,200 inhabitants
1900
110,000 inhabitants (plus 7,000 soldiers in the garrison); from 1896 to 1907 new areas came within the city boundaries, increasing its size from 7.8 to 33.9 square kilometres
1905
136,800 inhabitants
1910
156,696 civil inhabitants (census data; 57% Poles), plus 6,200 soldiers in the garrison (rising to 10,000 by 1913)
1917
156,357 inhabitants (government data)
1918
156,091 inhabitants (government data)
In the Second Polish Republic *data calculated from records of deaths, births and migration numbers
1919
158,185 inhabitants*
1920
162,902 inhabitants*
1921
169,422 inhabitants (census data at 30 September; includes 92,089 women)
1922
178,229 inhabitants*
1923
185,521 inhabitants*
1924
193,228 inhabitants*
1925
220,023 inhabitants*
1926
226,828 inhabitants*
1927
237,048 inhabitants*
1928
248,426 inhabitants*
1929
261,597 inhabitants*
1930
266,742 inhabitants*
1931
246,698 inhabitants (census data at December 9); 236,200 Poles, 6,400 Germans, 1,100 Jews, 200 Ukrainians, 100 Russians, 100 others; 131,929 women
1932
248,763 inhabitants*
1933
252,667 inhabitants* (expansions of the city boundaries in 1925 and 1933 more than doubled its area to 76.9 square kilometres)
1934
255,557 inhabitants*
1935
260,444 inhabitants*
1936
265,271 inhabitants*
1937
268,794 inhabitants*
1938
272,653 inhabitants*
June 1, 1939
274,155 inhabitants (the true figure was probably up to 10,000 higher)
During World War II about 8,600 of the pre-war inhabitants were murdered (inc. about 1,500 Jews); 3,620 were taken to Germany as slave workers (20% of them died); 38,256 inhabitants of Polish nationality were resettled to the General Government, over 60,000 were deprived of their property and expelled from their homes (Verdrägung, Polish rugi). Approximately 90,000 Germans were settled in the city.
In total 14,413 of the pre-war inhabitants died during the war (4,025 as a result of the combat, 2,255 executed, 6,382 died in concentration camps and prisons, 735 died as slave workers in Germany, 1,070 died of disease or starvation). Approximately 2,000 persons are unaccounted for.
The area of the city was also significantly increased in 1940–1942, to 226 square kilometres.
268,000 inhabitants. Following the invasion of Poland and the post-war migration and expulsions of Germans from Polish territory by the Soviets, the ethnic composition of the city's population would become almost exclusively Polish, resembling its distant past.
1950
320,700 inhabitants
1960
408,100 inhabitants
1970
471,900 inhabitants
1975
516,000 inhabitants
1980
552,900 inhabitants
1988
591,300 inhabitants. This is the highest population so far recorded for Poznań (it follows the addition of new areas to the city in 1974 and 1987, bringing its total area to 261.3 square kilometres). Later, migration from the city to surrounding areas would cause the population to fall.
In the Third Polish Republic
1990
590,049 inhabitants
1995
581,772 inhabitants
2000
572,900 inhabitants
March 31, 2002
571,571 inhabitants, according to official records (53% female)
May 2002
578,900 inhabitants, according to census data (54% female)
2009
556,022 inhabitants (statistical office data)
The above figures do not include a significant number of students (approximately 60,000[citation needed]) resident temporarily in Poznań during the academic year.
Jerzy Topolski (red) Dzieje Poznania Warszawa-Poznań 1988-, Państwowe Wydawnictwo Naukowe ISBN83-01-08194-5
Maria Trzeciakowska, Lech Trzeciakowski, W dziewiętnastowiecznym Poznaniu. Życie codzienne miasta 1815-1914, Poznań 1982, Wydawnictwo Poznańskie ISBN83-210-0316-8
