Solomon Islands

Solomon Islands is a sovereign state in the southwestern Pacific Ocean, classified by the United Nations as part of the Melanesia subregion of Oceania. This profile provides the stable statistical identifiers, explains how to verify changing data, and distinguishes classification from political or territorial claims. For cross-country comparisons or source literacy, see the country comparison guide and the source-literacy guide.

Identifiers and geography

The Solomon Islands is an archipelagic state east of Papua New Guinea. It is a UN member state and is classified by the UN M49 standard as code 090, with ISO alpha-2 SB and ISO alpha-3 SLB. The UN regional grouping places it in Oceania and the subregion of Melanesia. Its seat of government is Honiara, located on the island of Guadalcanal. The World Bank lists Honiara in its country metadata.

The state consists of six major islands and more than 900 smaller islands. It is a parliamentary democracy within the Commonwealth, with the British monarch as head of state represented by a Governor-General. The political system and legal framework are defined under the Solomon Islands Constitution, which came into effect at independence in 1978.

Classification codes

The United Nations Statistics Division assigns Solomon Islands the following codes in its M49 standard:

Field	Value
UN M49 code	090
ISO alpha-2	SB
ISO alpha-3	SLB
UN region	Oceania
UN subregion	Melanesia
UN membership	Member state
World Bank capital field	Honiara

These codes are statistical identifiers, not political or territorial claims. The M49 list is a classification of geographical regions used for statistical convenience and does not determine sovereignty, disputed borders, or diplomatic recognition. For the authoritative source, see the UN Statistics Division’s M49 overview.

How to verify current resident counts

Resident figures change between censuses and are not stable enough to quote as a single permanent number. The most recent nationwide census was conducted in 2019 by the Solomon Islands National Statistical Office (SINSO). Since then, UN DESA publishes annual estimates and projections. The World Bank and UNFPA also publish estimates with different methodologies and reference dates.

Figures can differ by several percent depending on whether they include all islands, whether they count Solomon Islander citizens only, and the timing of the estimate. The UN M49 overview classifies Solomon Islands as a UN member state in Melanesia, but classification codes do not imply any political status or territorial claim.

• For the official UN estimate, use the World Population Prospects data portal (United Nations Department of Economic and Social Affairs, Population Division). The reference year is stated in the data download, typically 2023 or 2024.
• For the World Bank indicator, use the API; the JSON response includes the value and the date, which is the reference year.
• For census-based figures, check SINSO. Census data is usually five to ten years old by the time it is published, so treat it as a baseline, not the current number.

Do not mix datasets: a UN estimate, a World Bank estimate, and a nationwide census may differ because they use different definitions, collection dates, and projection models. For current figures, use the UN Data portal or the World Bank country API; do not rely on static tables.

Seat of government

Honiara is the seat of government and largest urban centre. The World Bank lists Honiara in its country metadata. It is located on Guadalcanal Island and serves as the main commercial hub. For maps and administrative boundary data, the UN’s M49 overview provides the standard classification, while government portals publish official administrative maps.

Language

Solomon Islands has no single nationwide language. English is the official language, but the most widely spoken lingua franca is Pijin (Solomon Islands Pijin), an English-based creole. According to the CIA World Factbook (2024 edition), around 70 languages are spoken across the islands. The 2009 census reports the most widely spoken first languages as Melanesian languages, but the census does not list every language by speaker count; for current language statistics, consult SINSO and the UNESCO Institute for Statistics.

How to verify language data

Language data is not tracked by the World Bank or UN in a single comparable table. The most complete listing is Ethnologue, which compiles Solomon Islands Pijin, English, and the roughly 70 indigenous languages, but the count changes as languages are documented or reclassified. For legal status, use the Solomon Islands Government or a reputable language documentation source.

How to verify currency and government

The currency is the Solomon Islands dollar (SBD). For current legal details, use the Central Bank of Solomon Islands, which publishes the official currency and exchange rates; the ISO 4217 code is SBD. For government structure, use the government portal or a current edition of the CIA World Factbook, which names the head of state, head of government, and legislature. The UK Foreign, Commonwealth & Development Office also publishes guidance. Attribute the year of the source, because government compositions and currency codes rarely change, but leadership and administrative structures do.

How to verify area

For area, the UN Statistics Division’s M49 overview lists surface area in square kilometres, but it is a statistical figure, not a legal claim. Always cite the reference year and the dataset when quoting area.

Solomon Islands country profile

Solomon Islands is an island state in Melanesia, in the southwestern Pacific Ocean. It is a UN member state and is classified by the UN as part of the region Oceania and subregion Melanesia. The UN M49 code is 090; the ISO alpha-2 code is SB; the ISO alpha-3 code is SLB. The World Bank lists the seat of government as Honiara. What follows explains how to read those classifications, how to verify the volatile figures (inhabitants, currency, government, economy, travel rules) without freezing them, and how to compare Solomon Islands with other states using reliable primary sources.

How to get the current resident estimate

Resident figures change every year, and the most recent census may be several years old. For a stable, citable estimate, use the United Nations World Population Prospects (WPP) 2024 revision. The UN Population Division publishes annual estimates and projections; for Solomon Islands the mid-year estimate is the figure to cite, with the reference year attached. For a different source, the World Bank’s page reports its own estimate, usually based on UN data but sometimes with a different reference year. Do not mix the two.

How to verify the seat of government, currency and languages

The seat of government is Honiara, which is also the largest urban centre. The currency is the Solomon Islands dollar (SBD). English is the official language, but most people speak Pijin (Solomon Islands Pijin) as a lingua franca; about 70 local languages are also spoken. For current legal details, use the Central Bank of Solomon Islands for currency, and the Solomon Islands Government or a reputable language documentation source for language status. World Bank and UN profiles confirm administrative facts such as the seat of government.

How to verify resident counts and area

Resident figures change between censuses. SINSO is the primary source for census and survey data. The UN World Population Prospects provides annual estimates and projections; the World Bank’s page reports the same underlying UN figures with a stated reference year. For area, the UN Statistics Division’s M49 overview lists surface area in square kilometres, but it is a statistical figure, not a legal claim. Always cite the reference year and the dataset when quoting resident counts or area.