Here are some options and their nuances:
* Populate: This verb means to fill a place with inhabitants. "The city is populated by people from all over the world."
* Inhabit: This means to live in a place. "Many animals inhabit the rainforest."
* Overpopulate: This means to have more people than a place can sustainably support. "The island is becoming overpopulated."
* Depopulate: This means to reduce the number of inhabitants in a place. "The war depopulated the city."
* Grow: This can refer to an increase in population over time. "The city has grown rapidly in recent years."
* Increase: This is a more general term for a rise in numbers. "The population of the country has increased significantly."
* Decrease: This refers to a decline in population. "The population of the town has been decreasing."
Ultimately, the best verb to use depends on the context of your sentence.