Anyone wishing to find his congressman should visit the Find Your Representative page at the official U.S. House of Representatives website. Enter the zip code, and the matching congressman's website and contact page will be displayed.
A congressmen may have a public email address listed on his website or he may have a contact form instead. If one cannot contact one's congressman using his website, the Clerk of the House maintains phone numbers and addresses for all House members. Alternatively, one can call 202-225-3121 for the U.S. House switchboard operator. When writing one's congressman it is appropriate to address him as "Representative" or "The Honorable."