Here's why:
* No Official Definition: There's no official designation of "major" languages in the US.
* Diverse Population: The US has a very diverse population, with people speaking hundreds of languages.
* Language Use Varies: Language use varies by region, community, and even individual.
Here's what we can say:
* English: English is the dominant language in the US, spoken by the vast majority of the population.
* Spanish: Spanish is the second most spoken language in the US, with a significant presence, particularly in the Southwest.
* Other Major Languages: Other languages with substantial populations in the US include Chinese, French, Vietnamese, German, Korean, and Tagalog.
Instead of a specific number, it's more accurate to say that the US is a multilingual country with a vibrant and diverse linguistic landscape.