What is the average salary of a chief sustainability officer?

According to the national salary survey website Salary Expert, were Pierre, S.D., $61,837; Miami, $73,691; Houston, $77,790; Augusta, Maine, $80,276; Philadelphia, $83,916; Chicago, $86,790; Walla Walla, Wash., $86,870; Baltimore, $91,675; Washington, D.C., $92,625; and New York, $97,067.
Pierre, S.D., $88,078; Miami, $104,963; Houston, $110,801; Augusta, Maine, $114,341; Philadelphia, $119,526; Chicago, $123,619; Walla Walla, Wash., $123,734; Baltimore, $130,578; Washington, D.C., $136,005; and New York, $142,526, with a difference of $54,448 between the highest-paying and lowest-paying city.