Kocaeli

Marmara Region · population 2,161,171

Homicide index · 2025

112.8Turkey
= 100

Among 81 provinces: 23rd
Compared with Turkey: 13% above
Marmara Region: 93.3
Provinces with a population of 2 million and over: 99.8
Class: 110–140
2024 index: 86.9 · 58th
2023 index: 121.6 · 16th

5070100140

Marmara 93 Kocaeli 112.8

Indicators · 2025

IndicatorPer 100,000Turkey50100200

Homicide

31documented people

2024 · 25 · 1.2 per 100,000

2023 · 40 · 1.9 per 100,000

Per 100,0001.4

Turkey1.2

index112.8

index 112.8 · 23rd

Homicide cases

28documented cases

2024 · 25 · 1.2 per 100,000

2023 · 35 · 1.7 per 100,000

Per 100,0001.3

Turkey1.1

index115

index 115

Armed assault

45documented cases

2024 · 47 · 2.2 per 100,000

2023 · 62 · 2.9 per 100,000

Per 100,0002.1

Turkey1.8

index116

index 116 · 20th

In Kocaeli, homicides per 100,000 people are 13% above the national average and armed assaults are 16% above the national average. The figures are the incidents documented in the press. How to read these figures

Change between years

All provinces and regions

In Kocaeli province, the number of people killed in homicides documented in the press was 25 in 2024 and 31 in 2025. Armed assaults numbered 47 and 45 in the same years. None of these changes goes beyond random year-to-year fluctuation. Over 2023–2025, the average annual fall in the number of people killed is estimated at 10.1%; this trend does not go beyond random fluctuation.

Indicator · 2024 and 2025change · 95% interval

Homicide · documented people

2024 252025 31

−4.3%

−27% … +38%

No clear change

Homicide cases · documented cases

2024 252025 28

−9.9%

−26% … +17%

No clear change

Armed assault · documented cases

2024 472025 45

−2.5%

−21% … +20%

No clear change

Change across Turkey

Trend · 2023–2025average a year · 95% interval

Homicide · documented people

2023 402025 31

−10.1%

−26% … +7%

No clear change

Homicide cases · documented cases

2023 352025 28

−10.2%

−22% … +3%

No clear change

Armed assault · documented cases

2023 622025 45

−9.2%

−22% … +3%

No clear change

Trend across Turkey

Homicide12-month rolling total

Dec 2023Dec 2025

Homicide cases12-month rolling total

Dec 2023Dec 2025

Armed assault12-month rolling total

Dec 2023Dec 2025

Districts of Kocaeli

By month

Annual totals, 2023 → 2025

Homicide

202340202425202531

Homicide cases

202335202425202528

Armed assault

202362202447202545

Case characteristics

Offender–victim relationship

Spouse or partner10 · 36%

Family member7 · 25%

Acquaintance4 · 14%

Stranger2 · 7%

Not reported5 · 18%

Method

Firearm14 · 50%

Knife or blade7 · 25%

Beating5 · 18%

Other or not reported2 · 7%

3 cases in which two or more people were killed

Armed assault · outcome

Death23 · 51%

Injury22 · 49%

Subgroups

Open on the homicide page

Intimate partner and family homicides

17homicides · 61%

Fatal homicide cases in which the offender was the victim’s spouse, former spouse, partner or a family member.

Femicides

9homicides · 32%

Women and girls killed by a spouse, former spouse, partner or family member.

District profiles

Compare

Kocaeli and Gaziantepsimilar population · 107.4
Kocaeli and Edirnehighest index in the Marmara Region · 147.6
Kocaeli and İstanbulmost populous province · 95.8