<Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 10 </Td> <Td_colspan="1"> February 19, 2017 (2017 - 02 - 19) </Td> <Td> April 23, 2017 (2017 - 04 - 23) </Td> </Tr> <P> As of April 23, 2017, 39 episodes of When Calls the Heart have aired, concluding the fourth season . </P> <P> The series, originally planned to be filmed in Colorado, is filmed south of Vancouver, British Columbia, on a farm surrounded by vineyards . The fictional frontier town of Coal Valley was erected in late 2013 . Some of the set trimmings and a stage coach came from the Hell on Wheels set . The Thatcher home is the University Women's Club of Vancouver . </P> <P> The series was renewed for a second season, which aired from April 25 to June 13, 2015 . Hallmark Channel announced in July 2015 that the series had been renewed for a third season, which aired from February 21 to April 10, 2016, with a sneak peek airing during the 2015 Christmas season . </P>

Where is the series when calls the heart filmed