Statistics for Kilkis
Latest official figures for Kilkis, each linked to its source.
Demography
| Population | 69,858 persons | 2025 |
| Population density | 27.9 inhabitants per km² | 2024 |
| Population aged 65 and over | 26.5 % | 2025 |
| Median age | 49.1 years | 2025 |
| Live births | 408 count | 2024 |
| Deaths | 1,182 count | 2024 |
| Crude birth rate | 5.9 per 1,000 inhabitants | 2024 |
| Crude death rate | 17 per 1,000 inhabitants | 2024 |
Economy
| Gross domestic product (GDP) | 1,163 EUR million | 2023 |
| GDP per capita | 14,800 EUR | 2023 |
| GDP per capita in PPS (EU27 = 100) | 48 % | 2023 |