New Washington, officially the Municipality of New Washington, is a 3rd class municipality in the province of Aklan, Philippines. According to t…New Washington, officially the Municipality of New Washington, is a 3rd class municipality in the province of Aklan, Philippines. According to the 2020 census, it has a population of 47,955 people. New Washington is particularly known for being the home town of Cardinal Jaime Sin, former Archbishop of Manila.