riverside tax collector

the riverside county treasurer-tax collector is responsible for the billing and collection of property taxes and for the receiving, processing, investing and most importantly, safeguarding of public funds, as mandated by the laws of the state of california. the combined office is led by matthew jennings, a countywide, publicly elected official serving the fourth largest county in california by landmass and by population. established may 9, 1893, riverside county encompasses 7,303 square miles,