Hello Lyn, I live near Houston (you know how Houston is - near is connected and might as well *be* Houston LOL)... Anyway, there are several community colleges that offer LVN programs, such as Kingwood, HCC, Alvin, Lee, Col of Mainland, SanJac, etc. in and around Houston. I would advise against HCC only because their ADN-RN program has been in danger of losing, and has lost in the past, its accreditation, so all students at that point lose all credits up to that point. Not sure bout their LVN program.
What part of Houston? Have you tried searching for LVN programs on your local community college websites? Pre-req and admission requirements vary by school. Here in Houston we also have ADN-RN program options, and some schools where you can transition from ADN to MSN without getting BSN in between (very sweet deal), so you might want to consider that, as well.