 According to the Köppen Climate Classification system, Keiser has a humid subtropical climate, abbreviated "Cfa" on climate maps.As of the 2010 United States Census, there were 759 people living in the city.The racial makeup of the city was 92.0% White, 5.1% Black, 0.4% Native American, 0.1% Asian, 0.4% from some other race and 0.9% from two or more races.