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The population of Gaffargaon Upazila is 379,803.
The area of Gaffargaon Upazila is 401.16 square kilometers.
The population density of Gaffargaon Upazila is 947 people per square kilometer.
The population of Birganj Upazila is 231,305.
The population of Parshuram Upazila is 176,731.