How Much Does It Cost To Get Married At A Courthouse?

Does anybody know what the cost is to get married at the multnomah county courthouse in portland oregon? because my fiance and i want to go get married seeings how his family doesnt approve of it and he wants to do it at the courthouse and then fill his family in so if anyone knows how much it is to get married at the courthouse in multnomah county please let me know i already know its 60$ for the liscense but i need to know the cost of the marriage at the courthouse please help me.