Overland Park Climate Zone & Energy Code

Climate Zone: IECC Climate Zone 4A (mixed-humid). Johnson County's climate features hot, humid summers (97°F/75°F cooling design) and cold winters (4°F heating design) in a genuinely four-season Midwestern pattern.

Energy Code & Manual J Requirement: Kansas Residential Energy Code (IECC 2018). ACCA Manual J required for Johnson County HVAC permits. Johnson County and its municipalities enforce state code.

Local Electric Utility: Evergy (KCP&L / Kansas City Power & Light)

Building Department: City of Overland Park Planning & Development Services

Local Trade Association: PHCC Kansas / ASHRAE Kansas Chapter