Governance

Newest countries

South Sudan, declared in 2011, is the world's newest UN member state.

Unit year of independence Source UN Member States Entries 20

Headline finding

South Sudan leads the world for newest countries at 2011 year of independence.

What the numbers show

South Sudan's lead at the top of this ranking is 0.2% above the second-place country — a margin tight enough that the top spot has changed hands within the last five years and could change again.

The five countries leading the table — South Sudan, Montenegro, Serbia, East Timor, Palau — together set the global benchmark. The next 15 countries fill the rest of the table, with Lithuania anchoring the list at 1990.

Figures are drawn from UN Member States. We use this source because it produces a single, internally consistent dataset rather than aggregating from national statistics offices, which makes year-on-year comparison reliable. The next update is expected when the source publishes its next annual release — see the methodology section below for which year of data is currently shown.

Methodology and caveats

What this measures
year of independence
Source
UN Member States
Coverage
Top 20 countries shown. Full source dataset covers all 195 sovereign states where data is available.
Refresh cadence
Updated annually as the source publishes new figures, typically autumn or spring.
Known caveat
Country definitions follow the source: where the UN, the World Bank and the CIA Factbook disagree on borders or recognition, we use the figure as published rather than reconciling between bodies. Comparisons across rankings should be made with this in mind.

Frequently asked

Which country tops the ranking for countries?

South Sudan leads with 2011 year of independence. Montenegro is second at 2006, with Serbia in third place. Full top-10 with sources is above.

What's the source for the countries ranking?

The figures come from UN Member States. We use this source because it publishes a complete country-by-country dataset using consistent methodology — the alternative of mixing national statistics offices would compromise comparability. Updated annually with the latest available vintage of the data.

How often are the countries figures updated?

Once a year, in line with the source institution's publishing schedule. Major institutions like the World Bank, IMF and UNESCO publish annual updates in different months — typically autumn or spring — and the figures here reflect the most recently published vintage. The source footer on the ranking table shows which year's data is currently displayed.