In 1960, 35.1 of every 1,000 babies died before their first birthday; in 2025, 2.1.
People
- 1,306,529 people lived in Slovenia in 1922, and 2,130,850 in 2025.
- The oldest population lives in Pomurska (average age 47.4), the youngest in Osrednjeslovenska (42.9); 2026.
- There are now more people over 65 than children under 15: 22.5% against 14.2% (2026). In 2000 it was 14.0% against 15.9%.
- At today's death rates, 2.6% of newborn girls and 1.7% of boys would live to see their 100th birthday (2025).