Table:
text: List of cities in British Columbia
List
List
Name_ Corporate_name Regional_district Incorporation_date_city Population_2011 Population_2006 Change_ Area_km² Population_density
Fernie Fernie, The Corporation of the City of East Kootenay July 28, 1904 4448 4217 5.5 14.83 299.8
Fort St. John Fort St. John, City of Peace River December 31, 1947 18609 17402 6.9 22.69 820.2
Grand Forks Grand Forks, The Corporation of the City of Kootenay Boundary April 15, 1897 3985 4036 -1.3 10.43 382
Greenwood Greenwood, The Corporation of the City of Kootenay Boundary July 12, 1897 708 625 13.3 2.42 292.7
Kamloops Kamloops, City of Thompson-Nicola October 17, 1967 85678 80376 6.6 299.23 286.3
Kelowna Kelowna, City of Central Okanagan May 4, 1905 117312 107035 9.6 211.82 553.8
Kimberley Kimberley, City of East Kootenay March 29, 1944 6652 6139 8.4 60.62 109.7

Question: How many areas are there for the company named Fort St. John, city under list of cities in British Columbia ?