what country that has over 100 million people has the fastest growing population

The country with over 100 million people that is most often cited as having the fastest population growth is Nigeria. It has also been one of the world’s fastest-growing large populations for years, while countries like the United States and Egypt have much larger total populations but slower growth rates.

Quick Scoop

If you mean fastest-growing population among countries with 100+ million people , Nigeria is the strongest answer from the available data. A large- population country can grow quickly either because of high birth rates, a young population, or both, and Nigeria fits that pattern.

Why Nigeria

• Nigeria is far above the 100 million threshold and remains one of the world’s most rapidly expanding populations.

• Countries such as the United States are large, but their growth rate is much lower than Nigeria’s.

• Egypt is also over 100 million people, but its growth is not typically the fastest among that group.

Simple takeaway

So, the short answer is: Nigeria.

Note: “fastest growing” can mean either total annual increase or percentage growth rate. If you want, I can narrow it to the latest official estimate by growth rate or by absolute population increase.