Meriden is a city in Jefferson County, Kansas, United States. As of the 2020 census, the population of the city was 744. Meriden was foundeā¦Meriden is a city in Jefferson County, Kansas, United States. As of the 2020 census, the population of the city was 744. Meriden was founded in 1872. It was named by a pioneer settler for his former hometown of Meriden, New Hampshire.