Go to the Mexican Consulate in Los Angeles anytime between 7 a.m. and 1 p.m. local time, when it accepts passport applications.
The Mexican Consulate
(Consulado General de México en Los Ángeles)
2401 West 6th Street
Los Angeles, California 90057
213-351-6800
sre.gob.mx
Present documented proof of your Mexican citizenship or nationality. This can include any one of the following: an original birth certificate, a national certificate of Mexican citizenship, a letter of naturalization, a declaration of Mexican citizenship or an expired passport.
Present proof of your identity. This can includes any one of the following: a Mexican-issued voting card (with photo), a valid Mexican driver's license, a valid driver's license issued by the state of California, an expired Mexican passport, a military ID (with photo), any school diploma printed with a photograph or a student ID (with photo).
Present three recent passport photos. The background must be white and your face must be completely uncovered, including glasses.
Present the completed passport application, plus two photocopies, available from the consulate. The application form is not available online to be printed ahead of time, but you can request that a copy be mailed to you by calling the consulate in advance.
Pay the passport fee, in U.S. dollars. There are two fee options. For a three-year passport, the fee is $74. For a six-year passport, the fee is $101.
The passport can be held at the consulate for pickup or mailed to you, per request, when it's ready.