The World's 10 Smallest Countries by Area, in a Sourced Table

Vatican City is the world’s smallest country by area, listed at 0.44 km² in the UN Demographic Yearbook 2024. Monaco, Nauru and Tuvalu follow. The UN table supplies Vatican City’s area in footnote 144; Vatican News also gives 0.44 km² and identifies it as an independent sovereign state within Rome.

For a spreadsheet or public data page, “smallest” needs a defined measure. This ranking uses area, not population, and keeps the source behind each value visible.

The 10 smallest countries by area

The comparison covers UN member states plus Vatican City. Dependencies and other non-member entities are outside this ranking’s scope.

Figures below use the 2024 UN surface-area series, except Monaco, where the national statistics page reports a more precise figure. Sources checked on 10 October 2026; these are not newly measured “2026 areas.”

Sources: UN Demographic Yearbook 2024, Table 3 and Monaco Statistics, Geography of Monaco. Monaco’s 208 hectares converts to 2.08 km²; the UN table displays a rounded 2 km².

What the area column includes

The UN defines surface area as land plus inland waters, assumed to comprise major rivers and lakes. Its general definition excludes polar regions and uninhabited islands, with exceptions noted. It is not a measure of a country’s surrounding ocean or maritime jurisdiction. See the Table 3 technical notes.

Do not silently replace individual entries with familiar figures from another list. For example, this UN edition reports Malta at 315 km². Preserve that value when reproducing this series, or document any replacement and its source.

Vatican City also illustrates why footnotes matter: the UN labels its row “Holy See,” with footnote 142 specifying that the data refer to Vatican City State. The main row displays zero at whole-square-kilometre precision, while footnote 144 supplies 0.44 km². Importing only the displayed integer would lose the value readers need.

If you need a strictly land-only comparison, use a land-area series throughout rather than relabeling this column. The same distinction matters in the ranking of the biggest countries by land mass.

Prepare the ranking for a public data page

Use one country per row and keep the numeric measure separate from its documentation. A practical spreadsheet structure is:

rank,country,area_km2,area_definition,source_edition,source_url,accessed_date,notes

1. Store area as a number. Enter 0.44, not 0.44 km²; put the unit in the header. Preserve the source’s precision rather than adding decimal places that imply extra accuracy.
2. Record the exceptions. Note Vatican City’s source-row label and footnote value, and Monaco’s national-source replacement. Keep source_edition separate from accessed_date so a 2026 check does not become a 2026 measurement.
3. Sort numerically, ascending. Confirm that Vatican City comes first, Monaco second and Malta tenth. Generate the rank after applying the country-scope rule.
4. Publish the clean release file. TablePage accepts CSV, TSV, XLSX and XLS files and creates a public dataset page with a shareable link and filterable table. Upload only material intended for public access, then check the displayed decimals and source columns before sharing.

Keep the table alongside any chart. On a linear scale, Vatican City’s bar will be tiny compared with Malta’s; the numeric column lets readers inspect the small values without estimating them from bar lengths.