İzmit — province population
İzmit has a recorded base population of 2,079,072 for the province definition (Population reference date not supplied in local record). GeoNames administrative-unit record; the moving counter uses World Bank national growth (2025); not measured local growth, not new population observations.
At a glance
UN association
Geographic association unverified; no urban-centre population or rank attributed to this place.
Administrative units of İzmit
12 administrative records listed; completeness not established. 12 of 12 population values available; population values and dates not independently verified.
Available-value subtotal: 1,761,832; not a reconciled total. Shares use the displayed province denominator 2,079,072; mixed/unknown dates are not comparable. An em dash means missing, not zero.
| Unit | Population | Share | Membership |
|---|---|---|---|
| Gebze | 407,019 | 19.58% | Not independently verified |
| İzmit | 332,754 | 16.00% | Not independently verified |
| Darıca | 164,385 | 7.91% | Not independently verified |
| Gölcük | 145,805 | 7.01% | Not independently verified |
| Körfez | 142,884 | 6.87% | Not independently verified |
| Derince | 130,657 | 6.28% | Not independently verified |
| Çayırova | 103,536 | 4.98% | Not independently verified |
| Kartepe | 101,692 | 4.89% | Not independently verified |
| Başiskele | 76,605 | 3.68% | Not independently verified |
| Dilovası | 53,416 | 2.57% | Not independently verified |
| Karamürsel | 53,033 | 2.55% | Not independently verified |
| Kandıra | 50,046 | 2.41% | Not independently verified |
Recorded localities
Gazetteer associations; boundary membership not independently verified.
Diliskelesi (10,910), Köseköy (9,200), İhsaniye (9,186), Kullar (8,820), Bahçecik (8,648), Yuvacık (7,338), Kocakaymaz (6,377)
Comparable database records
Same definition label: province. Dates/boundaries may still differ; this is not a harmonised international city ranking. Ratios use 2,079,072 as denominator.
| Place | Population | vs İzmit |
|---|---|---|
| Gaziantep | 2,154,051 | +3.6% |
| Şanlıurfa | 2,170,110 | +4.4% |
| Mersin | 1,954,279 | −6.0% |
| Adana | 2,274,106 | +9.4% |
| Konya | 2,296,347 | +10.5% |
About these numbers
Source: GeoNames administrative-unit record. Reference: Population reference date not supplied in local record; GeoNames record modified 2026-04-16 (not the population date). Live method: exponential projection from modelling anchor 2025-07-01 using World Bank national growth (2025); not measured local growth (+0.42% per year). This anchor is a modelling convention, not an observed population date. Tiles, ranks and comparisons use the recorded base figure 2,079,072, not the ticking estimate. Country/world denominators are World Bank values and can differ in date and method from local/UN values. Ranks cover only records with the same definition label in this database, not all cities in the world.
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