Biloxi
- County:
- Harrison County
- County Seat:
- Yes
- Area (mi²):
- 42.936
- State:
- Mississippi
Biloxi is a city located in Harrison County, Mississippi. Biloxi has a 2026 population of 48,144. It is also the county seat of Harrison County. Biloxi is currently declining at a rate of -0.54% annually and its population has decreased by -2.6% since the most recent census, which recorded a population of 49,428 in 2020.