Mark Koltko-Rivera was born and raised in the East Village, on the Lower East Side of Manhattan. He has lived for substantial periods of time in Hiroshima, the suburbs of Philadelphia, inner-city Newark (NJ), and Central Florida; he currently lives in New York City.
At various times in his life, Koltko-Rivera has worked as a janitor, hardware store stock clerk, security officer, LDS (Mormon) missionary, systems analyst, director of marketing, psychotherapist, college and graduate school instructor, and as a director of research. For a brief period as a pre-teen, he worked unknowingly