Maps and disputed borders

How to Compare Countries Using Maps and Understand Border Disputes

Comparing countries on a map is not as straightforward as it looks. Every map is a product of choices: which projection to use, which borders to show as solid lines, and which boundaries are left as dashed, disputed, or simply omitted. The United Nations Geospatial Information Section, in its 2021 base map series, uses the WGS 84 datum and standard scales of 1:50,000,000 for world overviews and 1:10,000,000 for regional maps. This is the most neutral starting point for cross-national comparison because the UN does not recognise unilateral border changes and applies consistent cartographic rules to all 193 UN member states with land borders.

To compare countries responsibly, you need a decision rule: always start with the UN base map, check the CIA World Factbook (2026 edition) for the current status of each disputed border, and then verify against the UN Treaty Collection (2026) for any bilateral or multilateral agreements. Do not rely on a single map source. The most common mistake is assuming that a line on a map represents universally accepted sovereignty. Over 60 countries today have unresolved maritime boundaries, and 11 active UN peacekeeping missions (as of 2025) are directly related to border disputes. A map that shows a solid line where a dispute exists is not neutral, it is taking a side.

Country

A “country” for comparison purposes means a sovereign state as defined by the United Nations. There are 193 UN member states. Some entities (like Taiwan, Western Sahara, Kosovo, or Palestine) are not UN members but are recognised by some states and have their own statistical offices, currencies, and postal systems. The CIA World Factbook (2026) lists these as “other” entities and includes them with a notation. The rule: if you are comparing data, always note whether the entity is a UN member or not, and check which data sources include it. The UN Statistical Commission and the World Bank both use the UN membership list as their primary frame, but they may include non-member territories with separate codes.

Population

Population figures are not single numbers. The United Nations Department of Economic and Social Affairs (UN DESA) publishes annual population estimates, but these are projections based on the most recent census. Most countries conduct a census every 10 years, so the “2024 population” for many countries is actually a projection from a 2011 or 2021 census. The World Bank population estimate for a given year is typically the UN DESA figure. The CIA World Factbook (2026) provides its own estimate, often differing by 1-3% from the UN figure. When comparing populations between two countries, use the same source and the same reference year. Do not compare a 2024 UN estimate for one country with a 2022 census figure for another.

Capital

The capital is the seat of government. It is not always the largest city. For example, the capital of Australia is Canberra, not Sydney; the capital of Brazil is Brasília, not São Paulo; the capital of Myanmar (Burma) is Naypyidaw, not Yangon. The UN Geospatial Information Section (2021) and the CIA World Factbook (2026) both list the capital as the official seat of government. If a country has a disputed capital (e.g., Jerusalem, claimed by both Israel and Palestine), the UN map uses a dashed line and a note: “Jerusalem (status disputed).” The rule: when comparing capitals, use the UN base map as the neutral reference and note any disputed status.

Currency

Currency is straightforward at first: each country has an official currency, usually issued by a central bank. But many countries use currencies issued by other states (e.g., Ecuador uses the US dollar; several African countries use the CFA franc, pegged to the euro). Some countries have multiple currencies in circulation (e.g., Zimbabwe uses the US dollar, South African rand, and others). The CIA World Factbook (2026) lists the official currency and its ISO 4217 code. The IANA maintains the authoritative list of currency codes. When comparing costs, be aware that nominal exchange rates change daily, but purchasing power parity (PPP) adjustments from the World Bank or IMF give a more stable basis for living standard comparisons.

Language

Official language and most spoken language are often different. The UN Geospatial Information Section (2021) lists official languages for each member state. But the most spoken language in a country may be a regional vernacular. For example, India has 22 official languages under its constitution, but Hindi and English are the most widely used at the national level. The CIA World Factbook (2026) provides both official and most-spoken languages. When comparing language data, specify whether you are using official status or actual usage. The UNESCO Institute for Statistics publishes data on linguistic diversity and language use in education.

Checklist for Comparing Countries with Disputed Borders

1. Start with the UN base map (2021, WGS 84). This is the most neutral cartographic reference.
2. Check the CIA World Factbook (2026) for the current status of each disputed border. Look for the “Disputes” section in each country profile.
3. Verify against the UN Treaty Collection (2026). If a bilateral treaty exists, the border is considered settled under international law, even if some states do not recognise it.
4. For maritime boundaries, consult the UN Division for Ocean Affairs and the Law of the Sea. Over 60 countries have unresolved maritime claims, and the UN base map uses dashed lines with attribution for these.
5. If the entity is not a UN member state, note this in your comparison. Do not treat it as equivalent to a UN member without explicit caveats.
6. Use the same source and reference year for all data points. Do not mix UN population data with CIA Factbook economic data without noting the source difference.
7. Attribute every figure to its source and year. For example: “Population: United Nations DESA, 2024 estimate.”

What to Do When Data Conflicts

Official figures from a national statistical office may differ from UN or World Bank estimates. This is normal. The national statistical office is the primary source for that country’s data, but it may use different definitions or methodologies. The World Bank and UN use standardised definitions to enable cross-country comparison. The rule: for cross-country comparison, use the international source (UN, World Bank, WHO). For understanding a single country in depth, use the national statistical office. Always note which source you are using and why.

The Most Common Mistake

Newcomers assume that a single number (like GDP per capita or HDI) tells the whole story. It does not. GDP per capita at PPP tells you about average economic output adjusted for local prices, but it tells you nothing about distribution. The Gini index (0 = perfect equality, 100 = perfect inequality) from the World Bank or CIA World Factbook (2026) shows inequality, but it is based on surveys that often miss the very richest and the very poorest. HDI (Human Development Index, UNDP) combines health, education, and income, but it ignores inequality within the country. The Gini-adjusted HDI (also from UNDP) penalises countries with unequal distribution, but it is published less frequently. When comparing countries, always use at least three indicators from different domains and note the reference year.

Decision Rule for Using Maps in Country Comparison

Use the UN base map for the neutral outline of borders. Use the CIA World Factbook (2026) for the current status of disputes. Use the UN Treaty Collection (2026) for legal settlements. For any border shown as a dashed line on the UN map, do not treat it as settled. For any entity that is not a UN member state, add a clear note. Never assume that a map from a single source is objective, every map is a political document.