Province·Marmara Region·Code 41
TÜİK · ADNKS 2020The most common surnames in Kocaeli 2020
As in Türkiye as a whole, the most common surname in Kocaeli is Yılmaz: 31,882 people in 2020. Kaya is second with 20,571. Yılmaz has led Kocaeli every year since 2018.1
- First place
- Yılmaz
- Surnames listed
- 311
Which surnames are most common in Kocaeli in 2020?
| Rank | Surname | People | Per 1,000 | National rank |
|---|---|---|---|---|
| 01 | Yılmaz | 31,882 | 16.0 | 1 |
| 02 | Kaya | 20,571 | 10.3 | 2 |
| 03 | Aydın | 19,388 | 9.7 | 9 |
| 04 | Demir | 19,308 | 9.7 | 3 |
| 05 | Yıldız | 18,502 | 9.3 | 5 |
| 06 | Öztürk | 17,833 | 8.9 | 8 |
| 07 | Şahin | 17,420 | 8.7 | 6 |
| 08 | Çelik | 16,571 | 8.3 | 4 |
| 09 | Yıldırım | 16,383 | 8.2 | 7 |
| 10 | Kılıç | 13,280 | 6.6 | 13 |
| 11 | Özdemir | 11,905 | 6.0 | 10 |
| 12 | Arslan | 11,071 | 5.5 | 11 |
| 13 | Doğan | 9,225 | 4.6 | 12 |
| 14 | Koç | 7,952 | 4.0 | 18 |
| 15 | Aslan | 7,567 | 3.8 | 14 |
| 16 | Kurt | 7,493 | 3.8 | 17 |
| 17= | Çakır | 7,301 | 3.7 | 23 |
| 17= | Kara | 7,301 | 3.7 | 16 |
| 18 | Çetin | 7,217 | 3.6 | 15 |
| 19 | Aktaş | 6,943 | 3.5 | 30 |
| 20 | Özcan | 6,705 | 3.4 | 25 |
| 21 | Turan | 6,663 | 3.3 | – |
| 22 | Yavuz | 6,623 | 3.3 | 24 |
| 23 | Keskin | 6,380 | 3.2 | – |
| 24 | Polat | 5,972 | 3.0 | 19 |
| 25 | Korkmaz | 5,887 | 2.9 | 21 |
| 26 | Acar | 5,846 | 2.9 | 28 |
| 27 | Şen | 5,760 | 2.9 | – |
| 28 | Özkan | 5,662 | 2.8 | 22 |
| 29 | Can | 5,631 | 2.8 | 27 |
| 30 | Erdoğan | 5,552 | 2.8 | 26 |
How do these counts compare with Kocaeli’s population?
With an ADNKS population of 1,997,258 in 2020, about 16.0 in every 1,000 people in Kocaeli are called Yılmaz. The 31 listed surnames together cover 341,794 people, 17.1% of the population.1,2
Kocaeli lies in the Marmara Region. According to ADNKS its population grew by 4.8% between 2018 and 2020.2
| 2018 | 1,906,391 |
|---|---|
| 2019 | 1,953,035 |
| 2020 | 1,997,258 |
Which surname leads in the neighbouring provinces?
| Province | 1. | 2. | 3. |
|---|---|---|---|
| Bursa | Yılmaz44,807 | Aydın32,112 | Kaya29,865 |
| Istanbul | Yılmaz230,233 | Kaya159,395 | Demir144,521 |
| Sakarya | Yılmaz16,379 | Yıldız8,671 | Demir8,424 |
| Yalova | Yılmaz3,824 | Aydın2,872 | Demir2,756 |
- BursaBursa: also Yılmaz, with 44,807 people in 2020, 1.4 times as many as in Kocaeli.
- IstanbulIstanbul: also Yılmaz, with 230,233 people in 2020, 7.2 times as many as in Kocaeli.
- SakaryaSakarya: also Yılmaz, with 16,379 people in 2020, 51% of the figure in Kocaeli.
- YalovaYalova: also Yılmaz, with 3,824 people in 2020, 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 |
Which surnames lead the combined province lists for the Marmara Region?
Adding the published 2020 lists of the 11 provinces in the same region as Kocaeli puts Yılmaz first.
| Surname | Sum of listed counts | Province lists |
|---|---|---|
| Yılmaz | 376,470 | 11 |
| Kaya | 250,990 | 11 |
| Demir | 233,164 | 11 |
| Yıldız | 212,196 | 11 |
| Aydın | 207,547 | 11 |
| Şahin | 204,236 | 11 |
| Öztürk | 200,015 | 11 |
| Çelik | 197,906 | 11 |
Sums cover published province list rows only. Bearers in provinces where a surname is omitted are not included, so these are partial regional totals.1
What changed in Kocaeli between 2019 and 2020?
In Kocaeli’s top 31 list between 2019 and 2020, 1 surname entered and 0 left; 11 moved up, 0 moved down and 19 kept their rank.
| Surname | 2019 | 2020 | Count change |
|---|---|---|---|
| Yılmaz | 1 | 1 | +717 |
| Kaya | 2 | 2 | +617 |
| Aydın | 3 | 3 | +499 |
| Demir | 4 | 4 | +560 |
| Yıldız | 5 | 5 | +434 |
| Öztürk | 6 | 6 | +413 |
| Şahin | 7 | 7 | +433 |
| Çelik | 8 | 8 | +362 |
| Yıldırım | 9 | 9 | +416 |
| Kılıç | 10 | 10 | +327 |
| Özdemir | 11 | 11 | +248 |
| Arslan | 12 | 12 | +369 |
| Doğan | 13 | 13 | +236 |
| Koç | 14 | 14 | +146 |
| Aslan | 15 | 15 | +209 |
| Kurt | 16 | 16 | +199 |
| Çakır | 17 | 17 | +130 |
| Kara | 18 | 17 | +159 |
| Çetin | 19 | 18 | +181 |
| Aktaş | 20 | 19 | +151 |
| Özcan | 21 | 20 | +103 |
| Turan | 23 | 21 | +193 |
| Yavuz | 22 | 22 | +124 |
| Keskin | 24 | 23 | +68 |
| Polat | 26 | 24 | +154 |
| Korkmaz | 25 | 25 | +65 |
| Acar | 27 | 26 | +126 |
| Şen | 28 | 27 | +87 |
| Özkan | 29 | 28 | +87 |
| Can | 30 | 29 | +91 |
| Erdoğan | Entered | 30 | — |
Year columns show province rank. Entry and exit refer only to the published list’s cutoff; they do not mean a count of zero.
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