Eastern Ukraine
According to a 2016 survey of religion in Ukraine held by the Razumkov Center, 73.5% of the population in Eastern Ukraine were Christians (63.2% Eastern Orthodox, 8.1% simply Christians, 1.0% Protestants, and 0.3% Latin Rite Catholics), 0.5% were Muslims, 0.3% were Jewish, and 0.3% were Hindus. Not religious and other believers not identifying with any of the listed major religious institutions constituted about 24.7% of the population. It also showed that approximately 55.6% of the population of eastern Ukraine (which in Razumkov's mapping excluded Donbass and consisted of the regions immediately to the west of it) declared to be believers, while 13.4% declared to be undecided or non-believers, and 3.5% declared to be atheist. 
A 2007 survey by the Razumkov Centre asked "Would you like to have your region separated from Ukraine and joined another state?" In eastern Ukraine, 77.9% of respondents disagreed, 10.4% agreed, and the rest were undecided. 
In a poll conducted by the Kyiv International Institute of Sociology in the first half of February 2014, 25.8% of those polled in East Ukraine believed "Ukraine and Russia must unite into a single state", nationwide this percentage was 12.5%.
Buddhism in Ukraine
Today Ukraine has nearly 100 Buddhist communities and groups, 38 of them are officially registered and enjoy the status of legal entity. The largest communities and groups belong to the Tibetan tradition in Buddhism, that is, the tantric tradition of Vajrayana (“Diamond Vehicle”). The most widespread among them are Karma Kagyu communities, the main branch of the Tibetan Kagyu-pa School. They are united into the All-Ukraine Religious Center Ukrainian Association of Karma Kagyu Buddhists. In Ukraine, the religious studies of this center are intended for laypeople. Communities and groups of followers of this tradition are present in almost all regional centers of Ukraine.”