Dear catphillips,

I don't believe they are online yet because of privacy issues (some of the persons counted might still be alive). I know that there are some censuses that have been published and available on genealogy website for a fee (such as www.apellidosdecantabria.com) who specialize in certain regions. I also know that the LDS is currently trying to digitize other countries census information but it is long and slow in coming. have you looked on PARES?
it's Spains version of the National Archives online. The website is www.pares.mcu.es. Good luck!