Winthrop is a city located in Washington. With a 2020 population of 461, it is the 243rd largest city in Washington and the 13693rd largest city in the United States. Winthrop is currently growing at a rate of 1.10% annually and its population has increased by 17.01% since the most recent census, which recorded a population of 394 in 2010. Spanning over 1 miles, Winthrop has a population density of 494 people per square mile.
The average household income in Winthrop is $65,121 with a poverty rate of 16.46%. The median rental costs in recent years comes to $648 per month, and the median house value is $242,800. The median age in Winthrop is 42.4 years, 41.5 years for males, and 42.8 years for females. For every 100 females there are 90.2 males.