Bay Saint Louis, Mississippi is close to the interstate highway I-10. It is neighboring other cities: Waveland, MS (2.9mi/7m ); Lakeshore, MS (8.2mi/15m ); Diamondhead, MS (9.6mi/17m ). You can get to the city from exit 13 of i10 (4.4mi/7m ); exit 16 of i10 (7.2mi/10m ); exit 20 of i10 (11.4mi/15m ). Bay Saint Louis, Mississippi can reach interstate highways: i10 (4.4mi/7m ); i59 (22.8mi/28m ); i12 (24.8mi/30m ). It is also close to local highways: US 90 MS (1.3mi/3m ); MS 603 (0.9mi/2m ); MS 43 (1.9mi/4m ).