Poznan's 2026 population is now estimated at 515,784. In 1950, the population of Poznan was 315,618. Poznan experienced a decrease of -2,490 residents over the past year, marking an annual decline of -0.48%. These population estimates and projections come from the latest revision of the UN World Urbanization Prospects. These estimates represent the Urban agglomeration of Poznan, which typically includes Poznan's population in addition to adjacent suburban areas.
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Warsaw | 1,800,190 | 0% |
| Krakow | 769,354 | 0% |
| Lodz | 644,873 | -0.8% |
| Wroclaw | 642,099 | -0.02% |
| Gdansk | 465,486 | -0.01% |
| Szczecin | 395,737 | -0.23% |
| Bydgoszcz | 337,052 | -0.5% |
| Lublin | 325,344 | -0.47% |
| Bialystok | 297,585 | 1% |
| Katowice | 291,774 | 0.99% |
| Gdynia | 245,867 | 1% |
| Czestochowa | 219,278 | 0.99% |
| Radom | 210,532 | 0.99% |
| Torun | 201,106 | 1% |
| Sosnowiec | 198,996 | 0.99% |
| Rzeszow | 196,821 | 1.01% |
| Kielce | 194,218 | 1% |
| Gliwice | 178,186 | 0.99% |
| Olsztyn | 171,853 | 1% |
| Zabrze | 171,691 | 0.99% |
| Bielsko-Biala | 170,303 | 1% |
| Bytom | 164,447 | 0.99% |
| Zielona Gora | 141,280 | 1.01% |
| Rybnik | 137,782 | 1% |
| Ruda Slaska | 137,030 | 1% |
| Opole | 128,012 | 1% |
| Tychy | 127,307 | 1% |
| Gorzow Wielkopolski | 123,341 | 1% |
| Elblag | 119,097 | 1% |
| Plock | 118,989 | 1% |
| Dabrowa Gornicza | 118,899 | 0.99% |
| Walbrzych | 110,603 | 0.99% |
| Wloclawek | 109,347 | 0.99% |
| Tarnow | 108,177 | 0.99% |
| Chorzow | 107,443 | 1% |
| Koszalin | 106,880 | 1% |
| Kalisz | 99,761 | 0.99% |
| Legnica | 99,072 | 1% |
| Grudziadz | 94,076 | 1% |
| Jaworzno | 90,759 | 1% |
| Slupsk | 90,320 | 0.99% |
| Jastrzebie Zdroj | 88,425 | 1% |
| Nowy Sacz | 83,762 | 1% |
| Jelenia Gora | 78,778 | 0.99% |
| Siedlce | 78,258 | 1% |
| Konin | 73,176 | 0.99% |
| Pila | 72,949 | 1% |
| Piotrkow Trybunalski | 72,785 | 0.99% |
| Inowroclaw | 72,561 | 1% |
| Lubin | 72,142 | 1% |
| Ostrow Wielkopolski | 71,829 | 1% |
| Suwalki | 69,786 | 1% |
| Ostrowiec Swietokrzyski | 67,975 | 0.99% |
| Gniezno | 67,968 | 1% |
| Stargard | 67,753 | 1% |
| Siemianowice Slaskie | 66,587 | 0.99% |
| Pabianice | 64,445 | 0.99% |
| Leszno | 63,323 | 1% |
| Zamosc | 63,223 | 1% |
| Lomza | 62,795 | 1% |
| Zory | 62,670 | 1% |
| Pruszkow | 62,489 | 1.01% |
| Elk | 62,125 | 1.01% |
| Tarnowskie Gory | 61,756 | 1% |
| Tomaszow Mazowiecki | 61,645 | 0.99% |
| Chelm | 61,588 | 0.99% |
| Przemysl | 60,442 | 0.99% |
| Kedzierzyn-Kozle | 60,383 | 0.99% |
| Mielec | 60,229 | 1% |
| Stalowa Wola | 60,179 | 0.99% |
| Tczew | 59,828 | 1% |
| Biala Podlaska | 57,194 | 1% |
| Belchatow | 56,740 | 0.99% |
| Swidnica | 56,564 | 1% |
| Bedzin | 56,191 | 1% |
| Zgierz | 55,985 | 1% |
| Piekary Slaskie | 54,860 | 0.99% |
| Raciborz | 54,529 | 1% |
| Legionowo | 53,809 | 1% |
| Ostroleka | 51,893 | 1% |
| Swietochlowice | 49,363 | 0.99% |
