Vatican City is extremely small both in area and in population. It covers about 0.44 square kilometers (roughly 44 hectares or 110 acres) and has a population of around 800–900 people, making it the smallest sovereign state in the world by both area and population.

If you’d like, I can provide a quick comparison with other microstates (e.g., Monaco, Liechtenstein) or pull up the most recent official figures from the latest sources.