Imo State Population 2026

Imo State had an official population of 3,934,899 in the 2006 National Population Commission census, making it one of Nigeria's significant populated states at the time. Applying the NBS average annual growth rate of 2.8% for the state, the population is estimated at 6,835,903 in 2026, representing a significant increase over the two decades since the census. The state capital Owerri is the largest urban centre, with a 2026 estimated population of 680,000. Urban population accounts for approximately 55.0% of the total, while 45.0% of residents live in rural areas. With a land area of 5,288 km², the population density is approximately 1,293 people per square kilometre.

Imo State has a young population, with approximately 42.5% of residents under 15 years of age and 20.2% in the 15-24 age bracket — together representing the youth bulge characteristic of Nigeria's demographic profile. Working-age adults (25-54) make up 30.2% of the population, while seniors aged 55-64 and 65 and above account for 4.5% and 2.6% respectively. The gender split is approximately 48.9% male and 51.1% female.

The population of Imo State has grown steadily since the 2006 census, driven by high fertility rates, improved access to healthcare reducing infant mortality, and rural-to-urban migration. Nigeria's population growth rate of approximately 2.8% annually means that Imo State's population doubles roughly every 25 years (Rule of 70). By 2030, the state is projected to reach 7,634,285 residents. The absence of an updated national census since 2006 means that all post-2006 figures are estimates based on demographic modelling by the National Bureau of Statistics and UN Population Division. Nigeria's long-awaited census, postponed multiple times, will provide updated official data when completed.