Prosser is located in Washington. Prosser, Washington 99350has a population of 6,061. Prosser 99350 is more family-centric than the surrounding county with 34.12% of the households containing married families with children. The county average for households married with children is 32.3%.
The median household income in Prosser, Washington 99350 is $60,927. The median household income for the surrounding county is $76,612 compared to the national median of $69,021. The median age of people living in Prosser 99350 is 33.1 years.
The average high temperature in July is 89.3 degrees, with an average low temperature in January of 27.2 degrees. The average rainfall is approximately 8.5 inches per year, with 5.8 inches of snow per year.