West Africa’s Linguistic Evolution: Balancing Colonial Legacy and Indigenous Identity

In APRIL 2025, Niger offcialy designated Hausa as its national language, making French a working language. This reminds me of Mali's adoption of a new constitution in June 2023 that removed French as the official language, though French remains a working language. Some may suggest that these significant changes are inspired by a desire to move away from the colonial legacy in promoting national unity, while others may say they are an effort to assert cultural sovereignty in rendering the influence of the coloniser. Others will have different opinions about these changes. But what was the linguistic structural status in West Africa before these changes, and is this change what our region needs? Why don't we dive together into this story of West African languages told through data to understand the situation? Maybe we can get answers to all the questions our curious minds are asking.

The Colonial Legacy: Official Languages of West Africa

Let’s begin with the languages that dominate official communication, those tied to our colonial past. The map below shows the official languages of West African countries, a legacy of European influence that still shapes governance, education, media, and so much more.

Map showing the official languages of West African countries: English (blue), French (orange), Portuguese (green), and Arabic (yellow). 

The data presents a clear narrative about the linguistic landscape of West Africa. French is the dominant official language, spoken in eight countries: Benin, Burkina Faso, Côte d'Ivoire, Guinea, Mali, Niger, Senegal, and Togo. This means French serves as the official language in approximately 50% (8 out of 16) of West African nations. Notably, all the francophone countries in the region share land borders, which can offer various advantages. This dominance is not surprising, as France's colonial influence in the region was extensive, and French continues to serve as a unifying force among these nations.

English follows as the second most prevalent official language, spoken in five countries: Gambia, Ghana, Liberia, Nigeria, and Sierra Leone. It’s important to note that, with the exceptions of Sierra Leone and Liberia, the anglophone nations in the region do not share borders like their francophone counterparts. However, they are all located along the coast, reflecting the legacy of British colonial rule. Despite the geographical distances, English plays a vital role in unifying West African countries, particularly in the field of education, as evidenced by the establishment of the West African Examinations Council (WAEC) for anglophone nations. Portuguese is recognised as an official language in Guinea-Bissau and Cape Verde, while Arabic is the official language only in Mauritania. But these numbers hide a deeper truth: official languages often overshadow the indigenous tongues that define our daily lives. To break it down further, here’s a bar chart showing how many West African countries use each official language:

Chart showing the number of West African countries using each official language: French (8), English (5), Portuguese (2), Arabic (1).

French’s dominance isn’t just numerical, it’s cultural. It has influenced local languages, resulting in hybrid tongues like Wolof-French in Senegal, Bambara-French in Mali, and Dioula-French in Côte d’Ivoire. Similarly, in Nigeria and Ghana, locals speak Pidgin English, which is a blend of English and local languages, allowing people without a common language to communicate. These blends show how colonial languages don’t just coexist with our indigenous ones; they transform them.

Who Speaks What? Population and Official Languages

But what about the people? How many West Africans actually use these official languages? I dug into population data to estimate the reach of each language, based on the populations of the countries where they’re official as of December 2023.

Chart estimating the population using official languages: English (~292M), French (~118M), Portuguese (~33M), Arabic (~5M). (Note: Estimates based on 2023 population data; actual speaker numbers may vary due to multilingualism)

English clearly has the largest population reach, primarily due to Nigeria's approximately 228 million people. It serves as a unifying language in countries with diverse indigenous languages, such as Nigeria, where speakers of Hausa, Yoruba, and Igbo often use English to communicate across ethnic lines. English is widely utilised in government, education, media, and business, promoting inter-regional communication and cultural exchange throughout West Africa and beyond.

French follows with an estimated 118 million speakers, spread across numerous smaller Francophone countries. Portuguese and Arabic trail behind, reflecting the relatively smaller populations of Lusophone countries like Guinea-Bissau and Cape Verde, and the Arabic-speaking Mauritania.

The Heart of Our Voices: Indigenous Languages

Official languages tell only part of the story. West Africa’s true linguistic wealth lies in its indigenous languages, over 2,000 of them, by some estimates. Here are some of the most prominent ones shaping our cultural identity:

List of key indigenous languages: Hausa, Yoruba, Igbo, Fula, Akan, Wolof, Bambara, Mòoré, Ewe, Kanuri.(Note:  Data sourced from Ethnologue. Flag icons represent countries where each language is spoken natively or widely.)

These languages are more than communication tools; they’re vessels of culture, history, and identity. Yoruba proverbs, Hausa poetry, and Wolof storytelling carry centuries of wisdom. Yet, many are at risk. With estimates ranging from 500 to 1,000 distinct languages, West Africa’s linguistic diversity is a treasure we must preserve. Urbanisation, globalisation, and the dominance of official languages in education threaten smaller tongues. For instance, while Hausa boasts over 50 million speakers, some languages spoken by smaller communities, like those in rural Gambia, have fewer than 1,000 speakers left.

What’s Next for West Africa’s Languages?

The data paints a complex picture: colonial languages like English and French dominate official spaces, but indigenous languages remain the heartbeat of our communities. The challenge is to balance how we embrace global languages while preserving our linguistic heritage. Initiatives like local-language education in Ghana and Nigeria are a start, but more needs to be done. As a data scientist, I’m committed to using numbers to highlight these issues and telling stories that help raise conversations for improvement. While working on this post, I asked my mother how we can help save indigenous languages in West Africa. She suggested that indigenous languages should be included in the primary education curriculum across the region. This would allow students in a community to learn their local language in school, while families should also encourage their children to speak their native languages at home. Additionally, Niger officially designating Hausa as its national language could be a significant step toward promoting our indigenous languages, rather than allowing colonial languages to overshadow them. However, this choice could potentially have adverse effects on their relationships with other Francophone nations, or not, since many European and Asian countries speak different languages but still manage to unite. What do you think? let me know in the comment section.