21 states require 2 witnesses at the wedding, 4 require 1, and 8 need none at all, including Colorado, Idaho and Illinois. Witnesses usually must be adults who watch the ceremony and sign the license.
Rules for the rest of the states are on each state page. Ask your county office if you are unsure.
Witnesses required at the ceremony
Check the state page (18)
Number of witnesses state law requires at the ceremony.
Planning a small courthouse wedding? Many offices let staff act as witnesses for a fee. The courthouse wedding guide shows ceremony prices by county.
Every figure here comes from the official statute or clerk pages linked on our state and county pages. Fees change, so confirm with your county before you apply.