From province +‎ -wide.

provincewide (not comparable)

1. throughout a province
   • 1976, Leslie T. C. Kuo, Agriculture in the People's Republic of China: Structural Changes and Technical Transformation‎^[1], Praeger Publishers, →ISBN, →LCCN, →OCLC, page 50:

     Although data on state farms in recent years are sketchy, their general situation and problems appear to be essentially the same as they were in the 1950s and the 1960s. At a provincewide symposium of state-owned agricultural and animal husbandry enterprises, convened in Chouchih, Shensi Province, in May 1975, the participants were told that although the proportion of the enterprises in the entire rural economy was "still not great," they occupied an important position in China's socialist agriculture.

   • 2009 July 31, Ian Austen, “In a Quebecer’s Heart, Pepsi Occupies a Special Place”, in New York Times‎^[2]:

     One mocks Quebec stereotypes from a peculiar provincial law that sets June 30 as the expiration date for most residential leases (and thus transforms July 1 into a chaotic, provincewide moving day) to a Quebec City so cold that an actor must consume a bottle of Pepsi as if it were a Popsicle.