I'm always fascinated when folks are surprised that Disneyland won't be empty when they visit. It's Disneyland. The most famous tourist facility on the planet. It started an entire industry. It sits in the middle of one of the largest mega-cities in the world, in a state that attracts more domestic and foreign tourists than any other state in the union. And a state that all on its own is now the Sixth Largest Economy in the world, just slightly behind Great Britian at number five.
Unless it pours down rain, it will be busy on a weekend in January.
There ya go! If the Disneyland crowds scare you, there are a million other fabulous things to do in Southern California. Museums that most cities would kill to have, science centers and observatories, architecture tours and historical sites, stunning beaches, soaring mountains and ski resorts (in January), the glittering entertainment capital of the world, dining and shopping that brings 'em in from Asia and Europe by the planeloads. Disneyland is just one shining jewel in the crown of amazing offerings in Southern California. Get out there and see it! Do it!
And also check this thread for advice.
http://forums.wdwmagic.com/threads/...uthern-california-thread.872243/#post-5690042