SLEN

SLOVENIA · INDEPENDENT RESEARCH INSTITUTE

Institute for Demographic Future

Slovenia is facing the greatest demographic transformation of the modern era.
Fertility is not falling despite progress. It is falling together with it.

Data sources: SURS · Eurostat · IMAD | Registered institute in Slovenia | EU Transparency Register: 8705364103985-08

1.52
Fertility rate
–4,631
Natural increase 2024
22.3%
Population aged 65+
○○
2,124,000
Population of Slovenia

Demographic trends are not opinions. They are facts.
And facts require understanding, not ignoring.

Fertility is not falling despite progress. It is falling together with it.

Explore the data

Slovenia is changing demographically faster than ever before.

Fewer births. More older people. Negative natural increase since 2017. The Institute for Demographic Future collects, explains and contextualises these data — for the public, decision-makers and future generations.

Institute Original Research

Developing original demographic theories and models

Adaptive Demography Theory and Beyond 2.1 are original research frameworks developed by the Institute for Demographic Future. They connect long-term demographic projections, reproductive participation and the question of how European societies can prepare for the future in time.

Foundations of the Institute

Mission

We research, analyse and explain Slovenia’s demographic trends and their impact on society, individuals and the future.

Vision

To become a leading independent demographic centre in the region, using data, knowledge and innovation to contribute to a better future for all generations.

Purpose

To strengthen demographic understanding and encourage thoughtful decisions through a scientific and responsible communication approach.

Our Projects

Demographic Youth Incubator

Workshops for young people that ask the right questions about the future — not instead of them, but together with them.

Open project

Love Is Your Power

A project about relationships, identity and personal loyalty to oneself. For those seeking maturity, honesty and deeper meaning.

Open project

Demographic Time Machine

What will your municipality look like in 20 years? An analytical system for understanding demographic futures.

Open project
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#PreštejmoSe

How many are we? How many will we be? An initiative for connection and responsible demographic future.

Open project

Current

All posts
EU fertility in 2024

Research

EU fertility fell to the lowest level since records began

A concise overview of fertility, mortality and population structure indicators.

16 May 2026
Slovenia and EU demographic comparison

Projects

Demographic Time Machine: new municipal data

Updated projections for understanding the future of municipalities.

8 May 2026
Population ageing and long-term care

Current

Population ageing — a challenge of the coming decades

The share of people aged 65+ has increased to 22.3%.

30 April 2026

The question is not why fertility is falling. The question is what we will do today.

Get in touch
PARTNERSHIPS

Our strategic partners

The Institute is building a network of partners that contribute to understanding relationships, families, communities and Slovenia’s demographic future.