From the Wikipedia page 
The province of Pistoia (Italian: provincia di Pistoia) is a province in the Tuscany region of central Italy. Its capital is the city of Pistoia and the province is landlocked. It has an area of 964.12 square kilometres (372.25 sq mi) and a total population of 291,788 inhabitants (as of 2015). There are 22 communes in the province.
The province was formed in 1927 under the rule of Mussolini, and had the lowest income per capita in Tuscany in 1966 due to high poverty levels. This is because the province was mainly agricultural before World War II ended, and has since had to rapidly progress towards industrial capitalism and abandon its agricultural roots