Countryside was a half-mile-wide residential area in Johnson County, Kansas, USA, which was incorporated by its residents as a city on July 2, 1951 under Kansas Law. In a special election on December 3, 2002, residents voted to consolidate with the surrounding city of Mission, Kansas, in which the houses and streets had originally been built in the unincorporated Mission Township of Johnson County beginning in 1937. Countryside, as a city governmental entity, ceased to exist on January 15, 2003, however the originally founded Countryside Homes Association, Inc. neighborhood remains active.
As a city, Countryside consisted of 133 houses of middle to upper-class value situated with Lamar Avenue on the west, West 61st Street on the north, Nall Avenue on the east and Shawnee Mission Parkway on the south. The south side of West 62nd Terrace is a parkway strip of well-kept grass and trees opening, on its far side, onto a view of West 63rd Street, which had become a divided four-lane major artery, also running in an east–west direction, through Johnson County in 1960. In 1983, the W 63rd Street, Rock Creek Pkwy, Johnson Drive (US 56 & 169) corridor was renamed Shawnee Mission Parkway to reduce confusion about the three names and multiple numbers the road carried.
Countryside was dependent on Mission, Kansas for police services, Consolidated Fire District 2 provided fire protection and it had no commercial, governmental or other non-residential buildings, except Trinity Lutheran Church, within its boundaries. Its property regulations were established by the City of Countryside ordinances and its 1937 Countryside Homes Association declarations, which were revised in 2016. Countryside was the first city to consolidate with another city in Johnson County, as opposed to being annexed, and represents the first city consolidation in Kansas, since the 1960s.
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