Ostrowiec Swietokrzyski's 2026 population is now estimated at 65,728. In 1950, the population of Ostrowiec Swietokrzyski was 20,273. Ostrowiec Swietokrzyski experienced a decrease of -2,247 residents over the past year, marking an annual decline of -0.56%.
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Warsaw | 1,800,190 | 0% |
| Krakow | 769,354 | 0% |
| Lodz | 644,873 | -0.8% |
| Wroclaw | 642,099 | -0.02% |
| Poznan | 515,784 | -0.48% |
| 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% |
| 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% |
