While researchers have begun to examine the experiences of working class students in undergraduate education more closely, we know less about the experiences of working class students in graduate school. Through a nationwide survey of graduate students enrolled in Ph.D. programs in Sociology, we examined the extent to which working class students face greater challenges or barriers in completing their degrees compared to their middle class peers. We found working class students to be comparatively disadvantaged in academic integration and financial support. We discuss the implications of these findings for improving the graduate school experiences of working class students.