Generally speaking

How much is the cost to get married at a courthouse? I looked up online for my city and it says 56$ for it plus 20$ for a certified copy. Is that all we need to get married? My stepsister told me she paid nearly 250$. And I was like what?!?!? So was my grandma. I don’t know if she’s exaggerating (she does that a lot) or if it really is that much.