Benzie County (/bɛnziː/ BEN-zee) is a county in the U.S. state of Michigan. As of the 2020 Census, the population was 17,970. The county seat is Beulah. The county was initially set off in 1863 and organized in 1869. At 321 square miles (830 km2), Benzie County is the smallest of the 83 counties in Michigan in terms of land area.