On average, parents spend about $400 for a kid’s birthday party. This usually covers food, cake, some decorations, and simple entertainment options. If you plan to have the party at a play place or the zoo, etc., the rental for the party space will boost your budget.
Likewise, if you hire professional entertainment, this can add $100 to $200 to your bottom line. Of course, it’s possible to spend more or less than the average, depending on how simple or extravagant you want the party to be. (And if you plan to DIY a lot of food and décor, buy everything pre-made, or go with custom creations.)