Officials
Robert F. Onder, Jr.
Robert F. Onder, Jr. holds the office of U.S. Representative, MO-3 in Congressional District 3, Missouri, on the roster read 2026-09-20. This page is what Rallybase holds about that office and where each part of it was read from.
Members of Congress take messages through a web form rather than email, so there is no email address here. The website below is where that form lives.
- Office
- U.S. Representative, MO-3
- Body
- Congressional District 3
- State
- Missouri
- Party, as recorded
- Republican
- Phone
- 202-225-2956
- Website
- https://onder.house.gov
- Office address
- 5330 Highway N Cottleville, MO 63304
- Mailing address
- 1113 Longworth House Office Building Washington, DC 20515-2503
- Read on
Where this seat sits, and what you can do
- Congressional District 3The district this seat represents
- Write to Robert F. Onder, Jr.Rallybase composes the letter; sending it yourself is free
What Rallybase does not know here
- When this term ends. The sources we sync do not publish it and we store none.
- How this person has voted. Rallybase has not read this chamber's recorded votes, which is our coverage that is empty and not a statement about their record.
- Committee assignments, office hours, and anything this person has said. We hold none of it.