Arkansas City, KANSAS - River View Park - Walnut River - 1909:  Arkansas City is a city in Cowley County, Kansas, United States, situated at the confluence of the Arkansas River and Walnut River in the southwestern part of the county. As of the 2020 census, the population of the city was 11,974.  This Divided Back Era postcard, mailed in 1909, features the Walnut River and its abutting Riverview Park.  The card is in good condition but there is some edge wear.  Southwest News Co. Kansas City, Mo.  Germany.  No. D9805.