Mason, Ohio: Location, History, and Cincinnati/Dayton Gateway

Mason is a city in **Warren County, Ohio, United States**, approximately **25 miles (40 km) northeast of Cincinnati** and **27 miles (43 km) north of Dayton**. It sits at the intersection of I-71 and I-75, making it a critical logistics and commuter hub in the Cincinnati-Dayton metro corridor.

Key Facts

• Population (2023 est.): ~35,000
• County: Warren (fastest-growing in Ohio)
• Major Employers: Procter & Gamble (Mason Business Center - 2,000+ jobs), Cintas, Luxottica, Heinz, Mitsubishi Electric.
• Attractions: **Kings Island** (largest amusement park in Midwest), **Great Wolf Lodge**, **Lindner Family Tennis Center** (Western & Southern Open - ATP/WTA 1000), **Mason Sports Park**.
• History: Founded 1803 as "Palmyra," renamed 1835 for Revolutionary War veteran William Mason. Incorporated as village 1849, city 1971.

Why Location Matters

The I-71/I-75 convergence ("The Crossroads") puts Mason within a 1-hour drive of 3M+ people (Cincy, Dayton, Columbus, Louisville). This drove its transformation from farming village to corporate/entertainment center.