In Australia there are regional variations to the language and words that we use. For example, in Queensland we say "togs", however in NSW they are usually called "swimmers", and in more southern and western parts of Australia, they are termed "bathers" (of course they are ubiquitously known as "budgie smugglers across Australia!).
Togs are not alone. A "car boot" is called other things in various parts of Australia (e.g. trunk), as is "port" (e.g. bag, suitcase, case etc), and many others (potato scallop, drinking fountain, sausage sizzle, rubbish bin, etc. PhD theses have been written on the issue of regional variations of lexical usage and there are "word maps" readily available on-line!
The national results are in ....
This survey of over 110,000 people to date has found that 59.77% of respondants would say pain au chocolat, with 40.22% going for chocolatine. The results reveal that "chocolatine" voters are hugely congregated in the south west of the country.
And in Verteuil?
The problem I have is that Verteuil is in situated on the cusp, on the vague demarcation line between the south west region and the rest of the country - in the "chocolatine - pain au chocolat hot zone". There are 1441 respondants to the abovementioned survey to date in the departement of Charente. 90% indicated that they use the term "chocolatine". However, interestingly, it seems that our little village of Verteuil bucks the trend.