Jason Day currently lives in Westerville, Ohio, USA. He and his family reside on a 5-acre property there, which they purchased in 2010. The home features 4 bedrooms, 5 ½ bathrooms, a gourmet kitchen, fireplaces, and frontage on the Hoover reservoir. Additionally, Jason Day has an extensive golf practice facility in his backyard near Columbus, Ohio, which includes multiple practice greens and a par-3 hole for training.

More recently, Jason Day and his wife also reportedly purchased a 230-acre farm in Lucas, Ohio, in Monroe Township, for $3 million.