There’s no official rulebook, but a micro wedding is usually around 20–50 guests — an intentionally small celebration with your closest people. An elopement is smaller still: often just the couple, an officiant, and a witness or two. Both are about intimacy and meaning rather than scale.
Note: Permit, alcohol, and capacity rules vary by city, county, and state, and can change. Always confirm the latest requirements with the venue or the relevant local authority before finalizing your plans.