<p>Edit: x-posted with Venkat89</p>
<p>I looked at the admission policies of several graduate programs in linguistics. Requirements range from an undergraduate major to no prior training needed at all. Here are the first few hits:</p>
<p>
[quote]
We assume a background roughly equivalent to a B.A. in Linguistics. This does not mean that the department will not accept applicants with little Linguistics background. Students lacking sufficient background may, however, need to complete preparatory or supplemental courses in their first year.
[/quote]
UCLA</a> Department of Linguistics Graduate Program</p>
<p>
[quote]
Admission for graduate study in linguistics requires no specific undergraduate preparation, but a background in English, foreign language, speech, psychology, mathematics, or philosophy is particularly relevant.
[/quote]
Linguistics:</a> More graduate study information</p>
<p>
[quote]
What does the admissions committee look for when reviewing applications?
...
- an understanding of what Linguistics is. In general, we prefer students who have had at least some training in Linguistics
[/quote]
Stanford</a> Linguistics | Graduate | Admissions</p>
<p>
[quote]
Admission into the M.A. program assumes the completion of the equivalent of the University of Oregon B.A. in linguistics. Students without a B.A. in linguistics or its equivalent may be admitted on a provisional basis and become M.A. degree candidates upon completion of the following courses within their first year: ...</p>
<p>Applicants to the Ph.D. program must have an M.A. in linguistics or its equivalent.
[/quote]
Graduate</a> Admissions - Department of Linguistics - University of Oregon</p>
<p>In short, it is possible to go to grad school in linguistics with only a minor in it but you will be at a disadvantage. If you think that you might want to go to grad school, consider attending a college with a degree program in linguistics (according to Collegeboard more than 130 colleges offer a major in linguistics) or try to do an independent major at a college that offers a minor.</p>