Fairview is a city in Brown County, Kansas, United States. As of the 2020 census, the population of the city was 240. Fairview was founded on …Fairview is a city in Brown County, Kansas, United States. As of the 2020 census, the population of the city was 240. Fairview was founded on October 27, 1886, on land purchased in 1872 by W. F. Lambertson. It was named for its scenic setting.