The current metro area population of Begusarai in 2025 is 587,000, a 3.71% increase from 2024.

• The metro area population of Begusarai in 2024 was 566,000, a 4.04% increase from 2023.
• The metro area population of Begusarai in 2023 was 544,000, a 4.62% increase from 2022.
• The metro area population of Begusarai in 2022 was 520,000, a 5.05% increase from 2021.