Redmond is a city in King County, Washington, United States, located 15 miles east of Seattle. The population was 73,256 at the 2020 census…Redmond is a city in King County, Washington, United States, located 15 miles east of Seattle. The population was 73,256 at the 2020 census. Redmond is best known as the home of Microsoft and Nintendo of America. The city has a large technology industry in addition to being a bedroom community for Seattle, which lies across Lake Washington on State Route 520.