Province·Black Sea Region·Code 37
TÜİK · ADNKS 2025The most common surnames in Kastamonu
As in Türkiye as a whole, the most common surname in Kastamonu is Yılmaz: 6,866 people in 2025. It leads by a wide margin, 1.8 times as many bearers as Demir in second place. Yılmaz has led Kastamonu every year since 2018.1
- First place
- Yılmaz
- Surnames listed
- 301
Which surnames are most common in Kastamonu in 2025?
| Rank | Surname | People | Per 1,000 | National rank |
|---|---|---|---|---|
| 01 | Yılmaz | 6,866 | 18.1 | 1 |
| 02 | Demir | 3,914 | 10.3 | 3 |
| 03 | Çelik | 3,380 | 8.9 | 4 |
| 04 | Kaya | 3,344 | 8.8 | 2 |
| 05 | Özdemir | 3,009 | 7.9 | 10 |
| 06 | Yıldız | 2,756 | 7.3 | 5 |
| 07 | Kara | 2,508 | 6.6 | 16 |
| 08 | Şahin | 2,410 | 6.3 | 6 |
| 09 | Öztürk | 2,358 | 6.2 | 8 |
| 10 | Aydın | 2,174 | 5.7 | 9 |
| 11 | Arslan | 2,073 | 5.5 | 11 |
| 12 | Ünal | 1,946 | 5.1 | – |
| 13 | Acar | 1,908 | 5.0 | 28 |
| 14 | Demirci | 1,811 | 4.8 | – |
| 15 | Yıldırım | 1,787 | 4.7 | 7 |
| 16 | Özcan | 1,638 | 4.3 | 25 |
| 17 | Özkan | 1,526 | 4.0 | 22 |
| 18 | Doğan | 1,449 | 3.8 | 12 |
| 19 | Şen | 1,444 | 3.8 | – |
| 20 | Korkmaz | 1,213 | 3.2 | 21 |
| 21 | Köse | 1,178 | 3.1 | – |
| 22 | Kılıç | 1,169 | 3.1 | 13 |
| 23 | Güler | 1,165 | 3.1 | – |
| 24 | Çetin | 1,129 | 3.0 | 15 |
| 25 | Can | 1,077 | 2.8 | 27 |
| 26 | Kurt | 1,025 | 2.7 | 17 |
| 27 | Yüksel | 1,019 | 2.7 | – |
| 28 | Baş | 984 | 2.6 | – |
| 29 | Kartal | 961 | 2.5 | – |
| 30 | Ay | 957 | 2.5 | – |
How do these counts compare with Kastamonu’s population?
With an ADNKS population of 379,934 in 2025, about 18.1 in every 1,000 people in Kastamonu are called Yılmaz. The 30 listed surnames together cover 60,178 people, 15.8% of the population.1,2
Kastamonu lies in the Black Sea Region. According to ADNKS its population fell by 0.9% between 2018 and 2025.2
| 2018 | 383,373 |
|---|---|
| 2019 | 379,405 |
| 2020 | 376,377 |
| 2021 | 375,592 |
| 2022 | 378,115 |
| 2023 | 388,990 |
| 2024 | 381,991 |
| 2025 | 379,934 |
Which surname leads in the neighbouring provinces?
| Province | 1. | 2. | 3. |
|---|---|---|---|
| Bartın | Yılmaz3,051 | Kaya2,342 | Özdemir1,893 |
| Çankırı | Yılmaz2,525 | Şahin2,036 | Çelik1,925 |
| Çorum | Şahin7,613 | Yılmaz5,834 | Kaya5,211 |
| Karabük | Yılmaz4,892 | Özdemir2,813 | Kaya2,456 |
| Sinop | Yılmaz4,184 | Öztürk3,780 | Özdemir3,663 |
- BartınBartın: also Yılmaz, with 3,051 people in 2025, 44% of the figure in Kastamonu.
- ÇankırıÇankırı: also Yılmaz, with 2,525 people in 2025, 37% of the figure in Kastamonu.
- ÇorumÇorum: Şahin leads (7,613 people); Yılmaz, first in Kastamonu, ranks 2nd there with 5,834.
- KarabükKarabük: also Yılmaz, with 4,892 people in 2025, 71% of the figure in Kastamonu.
- SinopSinop: also Yılmaz, with 4,184 people in 2025, 61% of the figure in Kastamonu.
Neighbours: land borders derived from Natural Earth boundaries.3
Has Kastamonu’s top three changed over the years?
| Year | 1. | 2. | 3. |
|---|---|---|---|
| 2018 | Yılmaz 6,807 | Demir 3,845 | Çelik 3,340 |
| 2019 | Yılmaz 6,739 | Demir 3,832 | Kaya 3,280 |
| 2020 | Yılmaz 6,632 | Demir 3,759 | Çelik 3,287 |
| 2021 | Yılmaz 6,633 | Demir 3,824 | Kaya 3,319 |
| 2022 | Yılmaz 6,731 | Demir 3,885 | Çelik 3,359 |
| 2023 | Yılmaz 7,117 | Demir 4,050 | Çelik 3,509 |
| 2024 | Yılmaz 6,950 | Demir 3,942 | Çelik 3,405 |
| 2025 | Yılmaz 6,866 | Demir 3,914 | Çelik 3,380 |
Which surnames lead the combined province lists for the Black Sea Region?
Adding the published 2025 lists of the 18 provinces in the same region as Kastamonu puts Yılmaz first.
| Surname | Sum of listed counts | Province lists |
|---|---|---|
| Yılmaz | 156,242 | 18 |
| Şahin | 89,994 | 16 |
| Öztürk | 84,015 | 18 |
| Aydın | 83,569 | 18 |
| Demir | 75,722 | 18 |
| Kaya | 74,208 | 18 |
| Arslan | 59,587 | 16 |
| Çelik | 59,559 | 18 |
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 Kastamonu between 2024 and 2025?
In Kastamonu’s top 30 list between 2024 and 2025, 1 surname entered and 1 left; 0 moved up, 0 moved down and 29 kept their rank.
| Surname | 2024 | 2025 | Count change |
|---|---|---|---|
| Yılmaz | 1 | 1 | −84 |
| Demir | 2 | 2 | −28 |
| Çelik | 3 | 3 | −25 |
| Kaya | 4 | 4 | −36 |
| Özdemir | 5 | 5 | +16 |
| Yıldız | 6 | 6 | −9 |
| Kara | 7 | 7 | +6 |
| Şahin | 8 | 8 | −8 |
| Öztürk | 9 | 9 | −9 |
| Aydın | 10 | 10 | −5 |
| Arslan | 11 | 11 | −58 |
| Ünal | 12 | 12 | +1 |
| Acar | 13 | 13 | +1 |
| Demirci | 14 | 14 | −6 |
| Yıldırım | 15 | 15 | +43 |
| Özcan | 16 | 16 | −19 |
| Özkan | 17 | 17 | −32 |
| Doğan | 18 | 18 | −14 |
| Şen | 19 | 19 | −4 |
| Korkmaz | 20 | 20 | −2 |
| Köse | 21 | 21 | −7 |
| Kılıç | 22 | 22 | −12 |
| Güler | 23 | 23 | +4 |
| Çetin | 24 | 24 | +5 |
| Can | 25 | 25 | −7 |
| Kurt | 26 | 26 | +2 |
| Yüksel | 27 | 27 | ±0 |
| Baş | 28 | 28 | −5 |
| Kartal | Entered | 29 | — |
| Ay | 30 | 30 | −2 |
| Aslan | 29 | Left | — |
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