" do have a point. ;)    

 :Just thought I'd add a comment here from the Canadian perspective, perhaps how we handle this issue may have relevance. Unlike in America, we have federally mandated ""official"" languages, namely English and French. In America, though various states and localities have stated ""official"" languages, usually English, it is probably most accurate to state that the ""de facto"" language is English. However, in Canada in various regions, particularly in the North, there are what is called on the Canada page ""recognized regional languages."" These include Cree, Dene, Inuktitut, etc. 

 :If there was a consensus to do this (and I can accept that given the sensitive nature of the issue of language currently in America this may be lacking), one might note in the box since there is no official language that English is the de facto official language, with ""recognized regional languages"" in various states and territories, namely Spanish, Hawaiian, Samoan, Chamorro, Carolinian and French.    

 Oh, and to add to the rather odd remark above about Montreal (""Identifying the existence of multiple ""de facto"" languages is more appropriate for places like Montreal.  In most of the United States, there isn't that same degree of bilingualism."") this is rather misleading. There is no issue of ""de facto"" language in Canada, there are, simply put, ""official"" languages and ""recognized"" languages. Various regions will be de facto English or French, or Chinese, or Polish/Portuguese/Ukranian (like my Toronto neighbourhood).The issue in Canada is not the level of bilingualism per se, it is what are ""official"" languages and what are ""recognized"" languages. 

 Later, when lists of languages spoken are given, then we see the various percentages of speakers of particular languages. In America's case, lacking an ""official"" language per se, English is de facto with the above-mentioned recognized regional languages.    

 ::The territories asideit's such a headache accommodating our empireHawaiian is the only language that has a legal status comparable to Canada's ""recognized regional languages"". The recognition of Spanish by New Mexico and French by Louisiana is of a less formal, more purely practical order. I think the general language of the infobox note as it stands adequately addresses the matter there, with greater detail provided in the appropriate article section on Language.—   

 ::In defense of my ""rather odd"" remark, I wasn't making a statement about the legal status of any language in Canada, or really even addressing ""the issue in Canada;"" I was merely using Montreal as an example of a place where there are multiple languages spoken city-wide, and are hence ""de facto"" for the city.  Regardless of their official statuses, Montreal is is a place where there truly are two ""de facto"" languages because of the degree to which they are both spoken, and there aren't many of those places in the world.  You're conflating my local example with your national politics.     

 If English were indeed the ""official"" language of America, I'd agree. But since it isn't, it seems appropriate to note those recognized languages. Maybe Hawaiian is the only one (going by states), or others should be included if we are talking territories, etc. But when something is ""de facto"" it by definition is outside the normal legally defined boundaries. Yet several other languages within America do have legal definition. Which is why it seems a little odd to exclude them from the box since they have legal status.    

 :Be interested to hear other people's perspectives here. Mine is this: English is widely recognized as the de facto language of the country. Spanish is the second most common language spoken in the country, but is the official language nowhere (again, leaving the territories aside). There are two and only two official languages within the integral United States: 
 :#English in at least twenty-eight states 
 :#Hawaiian in one state, Hawaii (where English is also official) 
 :This would imply an adjustment of the infobox to read something like: 
 :*National language English (de facto) 
 :*Official state languages English (28 or more states), Hawaiian (Hawaii) 
 :*'''Other common language'