Natural Earth Admin 0: Countries vs. Sovereign States vs. Map Units

Natural Earth's Admin 0 data comes in three related but distinct flavors, and picking the wrong one is a common source of confusion. Admin 0 – Countries (258 features) is the file most users want. It treats Greenland as separate from Denmark and shows de facto boundaries by default. Sovereign states (209 features) is a stricter political list — only 199 of those issue passports. Map units (298) and subunits (360) exist to solve labeling edge cases, such as splitting the United Kingdom into England, Scotland, Wales, and Northern Ireland. If your goal is a world map that looks right and labels cleanly, start with Countries; reach for the others only when your project has a specific political or cartographic requirement.

The three datasets at a glance

Admin 0 – Countries: the default choice

Natural Earth describes this as the file most users will want instead of sovereign states. Two things define it:

• 258 countries, with Greenland shown as separate from Denmark.
• De facto boundaries by default — drawn according to who controls the territory, not de jure claims.

That default matters. If you are building a choropleth, a locator map, or anything where the shapes need to match what viewers expect to see, the de facto convention is usually what you want. Natural Earth also notes that some users will prefer map units instead when they need to distinguish overseas regions of France.

Admin 0 – Sovereign states: stricter, fewer features

The sovereign states file contains 209 sovereign states, though only 199 issue passports. The gap between those two numbers is the point: "sovereign state" is a political status, not a cartographic one, and the list does not map one-to-one onto the shapes people expect on a map.

Choose this when your question is genuinely about sovereignty — for example, counting or ranking states in a political dataset — rather than about drawing a recognizable world map.

Map units and subunits: built for labeling

Map units (298) and subunits (360) exist because real-world labeling breaks the country model. Natural Earth's own example is the United Kingdom: it is one country in the Countries file, but its four constituent countries — England, Scotland, Wales, and Northern Ireland — are the units that make sense on many maps.

Use these when:

• You need to label constituent countries or similar subdivisions.
• Your map scale is small enough that edge cases in labeling become visible.
• You are handling territories whose treatment differs between the Countries and sovereign states files.

De facto vs. de jure, and POV variants

All of these Admin 0 layers show de facto boundaries by default — according to who controls the territory, versus de jure. Natural Earth provides optional point-of-view (POV) variants for several dozen countries, and the fclass_* properties let you adjust which boundaries are shown, hidden, and how they are rendered to create POV worldviews.

This is the mechanism behind the "adjusted to taste" language in the documentation: the base data is de facto, and the POV variants plus fclass_* properties are how you shift the rendering toward a different worldview. If your project has a political sensitivity around a particular boundary, this is the layer where you handle it — not by editing geometry, but by choosing the variant and filtering on the class properties.

How to decide

• Drawing a world map, building a dashboard, or doing general GIS work? Use Admin 0 – Countries.
• Analyzing sovereignty as a political concept? Use sovereign states, and be aware that 209 states and 199 passport-issuing states are different counts.
• Labeling constituent countries or handling edge cases? Use map units or subunits.
• Need a specific political rendering of a disputed boundary? Stay on the same layer and apply the POV variant and fclass_* properties.

A practical check before committing: load the Countries file and the sovereign states file side by side and look at the features you care about. If the Countries version matches what your audience expects to see, you are done. If a specific territory is handled in a way that does not fit your project, that is the signal to look at map units or a POV variant instead.