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%.
Baptists in Ukraine
During the 1920s, Evangelical Christians and Baptists were prohibited in Soviet Ukraine; they were, to some extent, revived during and after World War II in a Soviet effort to weaken the cultural influence of the Russian Orthodox Church. In 1944, Baptists and Evangelical Christians united in the Church of Evangelical Christian Baptists (ECB). They were later joined by other smaller Baptist and Evangelical trends. At the end of the 1950s, 75% of the believers of the All-USSR Council of ECB lived in Ukraine. Baptists in Ukraine experienced a revival in the 1970s, and are now among the most active Christian denominations in the country.