Province·Marmara Region·Code 41
TÜİK · ADNKS 2021The most common surnames in Kocaeli 2021
As in Türkiye as a whole, the most common surname in Kocaeli is Yılmaz: 32,405 people in 2021. Kaya is second with 20,928. Yılmaz has led Kocaeli every year since 2018.1
- First place
- Yılmaz
- Surnames listed
- 301
The 30 most common surnames in Kocaeli, 2021
| Rank | Surname | People | Per 1,000 | National rank |
|---|---|---|---|---|
| 01 | Yılmaz | 32,405 | 15.9 | 1 |
| 02 | Kaya | 20,928 | 10.3 | 2 |
| 03 | Aydın | 19,690 | 9.7 | 9 |
| 04 | Demir | 19,652 | 9.7 | 3 |
| 05 | Yıldız | 18,969 | 9.3 | 5 |
| 06 | Öztürk | 18,040 | 8.9 | 8 |
| 07 | Şahin | 17,690 | 8.7 | 6 |
| 08 | Çelik | 16,898 | 8.3 | 4 |
| 09 | Yıldırım | 16,688 | 8.2 | 7 |
| 10 | Kılıç | 13,505 | 6.6 | 13 |
| 11 | Özdemir | 12,157 | 6.0 | 10 |
| 12 | Arslan | 11,238 | 5.5 | 11 |
| 13 | Doğan | 9,301 | 4.6 | 12 |
| 14 | Koç | 8,099 | 4.0 | 18 |
| 15 | Aslan | 7,773 | 3.8 | 14 |
| 16 | Kurt | 7,588 | 3.7 | 17 |
| 17 | Çakır | 7,341 | 3.6 | 23 |
| 18 | Kara | 7,322 | 3.6 | 16 |
| 19 | Çetin | 7,290 | 3.6 | 15 |
| 20 | Aktaş | 7,084 | 3.5 | 30 |
| 21 | Turan | 6,803 | 3.3 | – |
| 22 | Özcan | 6,791 | 3.3 | 25 |
| 23 | Yavuz | 6,739 | 3.3 | 24 |
| 24 | Keskin | 6,469 | 3.2 | – |
| 25 | Polat | 6,115 | 3.0 | 19 |
| 26 | Korkmaz | 5,990 | 2.9 | 21 |
| 27 | Acar | 5,954 | 2.9 | 28 |
| 28 | Şen | 5,809 | 2.9 | – |
| 29 | Özkan | 5,718 | 2.8 | 22 |
| 30 | Can | 5,655 | 2.8 | 27 |
How do these counts compare with Kocaeli’s population?
With an ADNKS population of 2,033,441 in 2021, about 15.9 in every 1,000 people in Kocaeli are called Yılmaz. The 30 listed surnames together cover 341,701 people, 16.8% of the population.1,2
Kocaeli lies in the Marmara Region. According to ADNKS its population grew by 6.7% between 2018 and 2021.2
| 2018 | 1,906,391 |
|---|---|
| 2019 | 1,953,035 |
| 2020 | 1,997,258 |
| 2021 | 2,033,441 |
Which surname leads in the neighbouring provinces?
- BursaBursa: also Yılmaz, with 45,224 people in 2021, 1.4 times as many as in Kocaeli.
- IstanbulIstanbul: also Yılmaz, with 231,085 people in 2021, 7.1 times as many as in Kocaeli.
- SakaryaSakarya: also Yılmaz, with 16,575 people in 2021, 51% of the figure in Kocaeli.
- YalovaYalova: also Yılmaz, with 3,813 people in 2021, 12% of the figure in Kocaeli.
Neighbours: land borders derived from Natural Earth boundaries.3
Has Kocaeli’s top three changed over the years?
| Year | 1. | 2. | 3. |
|---|---|---|---|
| 2018 | Yılmaz 30,542 | Kaya 19,525 | Demir 18,389 |
| 2019 | Yılmaz 31,165 | Kaya 19,954 | Aydın 18,889 |
| 2020 | Yılmaz 31,882 | Kaya 20,571 | Aydın 19,388 |
| 2021 | Yılmaz 32,405 | Kaya 20,928 | Aydın 19,690 |
| 2022 | Yılmaz 33,087 | Kaya 21,568 | Demir 20,126 |
| 2023 | Yılmaz 33,255 | Kaya 21,785 | Demir 20,415 |
| 2024 | Yılmaz 33,579 | Kaya 22,188 | Demir 20,866 |
| 2025 | Yılmaz 33,865 | Kaya 22,694 | Demir 21,235 |
Sources
- 1Türkiye İstatistik Kurumu (TÜİK) · ADNKS, TÜİK Nüfus İsim Portalı: En çok kullanılan soyisimler (ADNKS)
- 2Türkiye İstatistik Kurumu (TÜİK) · ADNKS, TÜİK ADNKS: Cinsiyete göre nüfus, Türkiye ve 81 il
- 3Natural Earth, Natural Earth: Admin-1 boundaries