Izmit's 2026 population is now estimated at 381,108. In 1950, the population of Izmit was 57,276. Izmit has grown by 4,644 in the last year, which represents a 1.23% annual change. These population estimates and projections come from the latest revision of the UN World Urbanization Prospects. These estimates represent the Urban agglomeration of Izmit, which typically includes Izmit's population in addition to adjacent suburban areas.
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Istanbul | 16,419,100 | 1.12% |
| Ankara | 5,618,890 | 1.23% |
| Izmir | 3,184,030 | 1.01% |
| Bursa | 2,168,130 | 1.19% |
| Adana | 1,896,710 | 1.06% |
| Gaziantep | 1,882,390 | 1.27% |
| Konya | 1,468,750 | 1.28% |
| Antalya | 1,414,400 | 1.42% |
| Diyarbakir | 1,142,330 | 1.24% |
| Mersin | 1,112,360 | 1.21% |
| Kayseri | 1,048,660 | 1.1% |
| Eskisehir | 871,917 | 1.32% |
| Gebze | 860,277 | 1.59% |
| Samsun | 729,144 | 1.46% |
| Denizli | 721,748 | 1.37% |
| Sanliurfa | 628,456 | 1.02% |
| Kahramanmaras | 609,710 | 1.34% |
| Van | 587,333 | 1.55% |
| Malatya | 538,623 | 1.16% |
| Batman | 486,411 | 1.33% |
| Erzurum | 473,650 | 1.23% |
| Elazig | 458,152 | 1.38% |
| Manisa | 424,794 | 1.34% |
| Sivas | 407,119 | 1.33% |
| Adapazari | 399,022 | 0.96% |
| Balikesir | 359,363 | 1.41% |
| Tarsus | 227,021 | 1% |
| Kutahya | 212,444 | 1.01% |
| Trabzon | 211,027 | 0.99% |
| Corum | 210,822 | 1% |
| Corlu | 210,362 | 1.01% |
| Adiyaman | 198,433 | 1% |
| Osmaniye | 197,747 | 1.01% |
| Kirikkale | 192,705 | 1% |
| Antakya | 190,377 | 1% |
| Aydin | 179,425 | 1.01% |
| Iskenderun | 175,454 | 1% |
| Usak | 173,397 | 1% |
| Aksaray | 171,423 | 1.01% |
| Isparta | 166,895 | 0.99% |
| Inegol | 162,452 | 1% |
| Tekirdag | 142,602 | 1% |
| Edirne | 140,374 | 1% |
| Ordu | 135,878 | 1% |
| Karaman | 132,064 | 1.01% |
| Siirt | 127,327 | 1.01% |
| Korfez | 126,616 | 1% |
| Kiziltepe | 123,762 | 1% |
| Duzce | 121,215 | 1% |
| Tokat | 121,004 | 1% |
| Bolu | 120,021 | 1% |
| Turgutlu | 117,800 | 1% |
| Bandirma | 112,740 | 1% |
| Nazilli | 110,437 | 1% |
| Kirsehir | 105,826 | 1.01% |
| Nigde | 105,702 | 1.01% |
| Zonguldak | 104,604 | 1% |
| Ceyhan | 104,542 | 1% |
| Karabuk | 103,302 | 1% |
| Siverek | 102,856 | 1% |
| Akhisar | 102,453 | 1% |
| Luleburgaz | 100,790 | 1% |
| Agri | 99,276 | 1.01% |
| Polatli | 96,812 | 1.01% |
| Rize | 96,503 | 1.01% |
| Salihli | 96,304 | 1% |
| Eregli | 95,058 | 1% |
| Eregli | 95,058 | 1% |
| Nizip | 94,835 | 1% |
| Cizre | 94,835 | 1% |
| Canakkale | 94,762 | 1.01% |
| Yalova | 94,722 | 1.01% |
| Alanya | 94,316 | 1% |
| Giresun | 90,827 | 1% |
| Viransehir | 89,940 | 1% |
| Bingol | 89,224 | 1.01% |
| Amasya | 86,667 | 1.01% |
| Kastamonu | 86,085 | 1.01% |
| Elbistan | 85,642 | 1.01% |
| Erzincan | 85,323 | 1% |
| Nevsehir | 84,631 | 1% |
| Nusaybin | 83,832 | 1% |
| Mardin | 82,449 | 1% |
| Manavgat | 81,903 | 1.01% |
| Bafra | 79,861 | 1% |
| Kilis | 79,690 | 1% |
| Kadirli | 78,964 | 1% |
| Kars | 76,729 | 1% |
| Igdir | 75,721 | 1% |
| Kozan | 74,521 | 1% |
| Soma | 74,158 | 1% |
| Silopi | 73,400 | 1% |
| Mus | 72,774 | 1.01% |
| Burdur | 71,611 | 1.01% |
| Yozgat | 71,353 | 1% |
| Fethiye | 70,299 | 1% |
| Ercis | 70,002 | 0.99% |
| Kirikhan | 65,881 | 1% |
| Kirklareli | 64,265 | 1.01% |
| Hakkari | 63,828 | 1.01% |
| Sirnak | 63,664 | 1.01% |
| Dogubayazit | 63,432 | 0.99% |
| Kusadasi | 62,637 | 1.01% |
| Ergani | 62,601 | 1% |
| Tavsanli | 62,239 | 1% |
| Mugla | 61,550 | 1.01% |
| Turhal | 61,523 | 1% |
| Yuksekova | 61,182 | 1% |
| Tatvan | 60,919 | 1.01% |
| Reyhanli | 60,763 | 1% |
| Kahta | 59,760 | 1% |
| Aksehir | 58,058 | 0.99% |
| Bergama | 57,682 | 1% |
| Erbaa | 57,610 | 1% |
| Bozuyuk | 57,548 | 1% |
| Carsamba | 57,218 | 1% |
| Mustafakemalpasa | 57,162 | 1% |
| Patnos | 57,015 | 0.99% |
| Orhangazi | 55,477 | 1% |
| Bismil | 55,421 | 1% |
| Sorgun | 55,029 | 1.02% |
| Kesan | 54,012 | 1% |
| Midyat | 53,258 | 1% |
| Merzifon | 52,334 | 1% |
| Bartin | 51,640 | 1.01% |
| Milas | 51,386 | 1% |
| Karacabey | 51,268 | 1% |
| Suruc | 50,991 | 0.98% |
| Edremit | 50,861 | 1% |
| Edremit | 50,861 | 1% |
| Tire | 50,337 | 1% |
| Fatsa | 49,271 | 0.97% |
| Silifke | 47,693 | 0.99% |
| Alasehir | 47,117 | 1% |
| Didim | 46,620 | 1.03% |
| Serik | 46,541 | 1% |
| Bilecik | 46,403 | 1.02% |
| Karamursel | 46,132 | 1% |
| Bitlis | 46,062 | 1.02% |
| Birecik | 45,736 | 1% |
| Erdemli | 43,573 | 1% |
| Ceylanpinar | 43,546 | 1% |
| Gonen | 43,045 | 1% |
| Gonen | 43,045 | 1% |
| Biga | 39,429 | 1.01% |
| Seydisehir | 39,211 | 1% |
| Silvan | 38,367 | 0.98% |
| Afsin | 38,193 | 1% |
| Burhaniye | 38,134 | 1% |
| Suluova | 37,297 | 1% |
| Bucak | 36,065 | 1% |
| Sinop | 36,031 | 1% |
| Develi | 36,023 | 1% |
| Bulancak | 35,989 | 1% |
| Bor | 35,913 | 1% |
| Safranbolu | 35,850 | 1% |
| Akcaabat | 35,447 | 1% |
| Ayvalik | 35,285 | 1% |
| Marmaris | 34,729 | 1.01% |
| Sungurlu | 34,195 | 1% |
| Beypazari | 34,142 | 1% |
| Zile | 33,880 | 1% |
| Sandikli | 32,886 | 1% |
| Bodrum | 32,801 | 1.01% |
| Bayburt | 32,141 | 1% |
| Anamur | 32,081 | 0.99% |
| Karapinar | 31,477 | 1% |
| Niksar | 31,088 | 0.99% |
| Terme | 30,975 | 1.01% |
| Beysehir | 30,397 | 0.99% |
| Erzin | 30,239 | 1% |
| Bolvadin | 30,156 | 1% |
| Tunceli | 30,081 | 1.01% |
| Yenisehir | 29,802 | 1% |
| Yerkoy | 29,473 | 1% |
| Cumra | 29,443 | 1% |
| Karasu | 28,907 | 1.01% |
| Babaeski | 28,769 | 1% |
| Malkara | 28,578 | 1% |
| Can | 28,498 | 1% |
| Kurtalan | 28,447 | 1% |
| Ortaca | 28,384 | 1.02% |
| Sereflikochisar | 28,156 | 1% |
| Pazarcik | 27,825 | 1% |
| Mut | 27,434 | 0.99% |
| Golbasi | 27,181 | 1% |
| Tosya | 27,071 | 1% |
| Vezirkopru | 25,936 | 1% |
| Boyabat | 25,503 | 1% |
| Osmancik | 25,248 | 1% |
| Besni | 25,170 | 1% |
| Sarikamis | 24,961 | 1.02% |
| Simav | 24,621 | 1% |
| Dinar | 24,610 | 1% |
| Artvin | 24,468 | 1.01% |
| Susurluk | 24,322 | 1% |
| Akcakale | 24,313 | 0.99% |
| Ardesen | 23,168 | 0.99% |
| Dalaman | 23,147 | 1.01% |
| Gelibolu | 23,074 | 0.98% |
| Erdek | 22,845 | 1.01% |
| Gazipasa | 22,681 | 1.01% |
| Akcakoca | 22,628 | 1% |
| Caycuma | 22,551 | 1% |
| Cesme | 22,544 | 1.02% |
| Kemer | 22,421 | 1.02% |
| Belen | 22,283 | 1.01% |
| Iznik | 22,161 | 1% |
| Alaca | 22,156 | 1% |
| Gerede | 21,956 | 1% |
| Devrek | 21,845 | 0.99% |
| Akdagmadeni | 21,615 | 0.99% |
| Kaman | 21,598 | 1% |
| Serinyol | 21,205 | 1.03% |
| Kozluk | 21,109 | 1% |
| Bulanik | 21,051 | 1% |
| Kulu | 20,852 | 1% |
| Korkuteli | 20,563 | 1.01% |
| Oltu | 20,448 | 1% |
| Geyve | 20,438 | 1% |
| Imamoglu | 20,365 | 1% |
| Cine | 20,343 | 1% |
