Washington. 48 /51. Washington’s average house size is 1,903 square feet, with median home prices hitting right around $259,000. According to PropertyShark, the average size of a new home in the .... The average Respiratory Therapy Director salary in the United States is $116,758 as of July 26, 2022, but the range typically falls between $104,593 and $132,418. Salary ranges can vary widely depending on many important factors, including education, certifications, additional skills, the number of years you have spent in your profession.