The article considers the structure of the inequality of access to extra-curricular education in Russia and factors influencing it. Among the main barriers are the territorial context, urban and rural education, the families' socioeconomic status and cultural capital. It is also showed that the factors of the inequality are also produced with strong spatial (interregional, inter-municipal) differentiation; the sector's peculiarities of regulation and policy. Despite active measures of the state policy in increasing participation coverage of in extracurricular education and activities, the questions of social differentiation's risks remain not solved. Tools for identifying risk categories have not been developed.