Rosalia is a city located in Washington. With a 2020 population of 571, it is the 233rd largest city in Washington and the 12751st largest city in the United States. Rosalia is currently growing at a rate of 0.71% annually and its population has increased by 3.82% since the most recent census, which recorded a population of 550 in 2010. Spanning over 1 miles, Rosalia has a population density of 909 people per square mile.
The average household income in Rosalia is $50,190 with a poverty rate of 21.74%. The median rental costs in recent years comes to $525 per month, and the median house value is $107,900. The median age in Rosalia is 39.1 years, 31.3 years for males, and 47.2 years for females. For every 100 females there are 86.2 males.