Mason City, Iowa is close to the interstate highway I-35. It is neighboring other cities: Rock Falls, IA (10.99 mi ); Plymouth, IA (13.32 mi ); Manly, IA (15.05 mi ). You can get to the city from exit 194 of i35 (12.65 mi ); exit 193 of i35 (12.85 mi ); exit 197 of i35 (13.06 mi ). Mason City, Iowa can reach interstate highways: i35 (12.65 mi ); i90 (56.38 mi ); i80 (162.72 mi ). It is also close to local highways: US 65 IA (0.08 mi ); IA 122 (0.76 mi ); US 18 IA (5.38 mi ).