Koppel worked as a teacher for a short time before he got a job of copyboy at WMCA Radio in New York. He started working for ABC Radio News from June 1963 when he was hired as the youngest correspondent.

In 1963, Koppel got an American Citizenship and in the same year, he got married to Grace Anne Dorney. His age was 23 while he got married. He has four children with his wife. Ted Koppel holds an American nationality and he belongs to white ethnicity. Koppel has a net worth of 30 Million Dollars.