http://www.radio.cz/en/section/news/poll-35-percent-of-czechs-believe-in-god
Earlier in 2016, England The Independent ranked the Czech Republic as the third-most atheist country. The writer, Jess Staufenberg, explained:
A perhaps surprise third contender for least religious countries in the world, the Czech Republic has some 30 to 39 per cent of citizens who classify as atheists. The weak support for traditional church religion could be the legacy of strong Czech nationalism throughout the 19th and 20th century. Catholicism was seen as an Austrian import and was discouraged by the state, with Protestantism never really managing to fill the gap, according to historians. The country’s communist past also suppressed the revival of any religion, spanning from 1948 to 1989.