Indicator	Value
Total population	3,870,000–3,880,000 peopleUN DESA WPP [2024] 3,875,000 people·World Bank WDI [2024] 3,866,000 people
Median age	45 yearsUN DESA WPP [2024]
Life expectancy	78.6–78.9 yearsWorld Bank WDI [2024] 78.93 years·UNDP HDI [2023] 78.58 years
Ethnic groups	Croat 91.6%, Serb 3.2%, other 3.9% (including Bosniak, Romani, Albanian, Italian, and Hungarian), unspecified 1.3% (2021 est.)CIA World Factbook [2025] · 2026 archive
Languages	Croatian (official) 95.2%, Serbian 1.2%, other 3.1% (including Bosnian, Romani, Albanian, and Italian) unspecified 0.5% (2021 est.)CIA World Factbook [2025] · 2026 archive
Religions	Roman Catholic 79%, Orthodox 3.3%, Protestant 0.3%, other Christian 4.8%, Muslim 1.3%, other 1.1%, agnostic 1.7%, none or atheist 4.7%, unspecified 3.9% (2021 est.)CIA World Factbook [2025] · 2026 archive
Urbanization	58.6% of total population (2023)CIA World Factbook [2025] · 2026 archive
Population growth	0.169 %World Bank WDI [2024]
Birth rate	8.3 per 1,000World Bank WDI [2024]
Death rate	13.2 per 1,000World Bank WDI [2024]
Urban population	57.5 %World Bank WDI [2024]
Languages (structured)	Balkan Romani / Central Romani / Croatian Sign Language / Dalmatian / Hungarian / Istriot / Istro-Romanian / Italian / Kajkavian / Ladino / Sinte-Manus Romani / Slovenian / Venetian / Vlax RomaniGlottolog [2026]