Every year brings more spooky events in October: Boos at Zoos, haunted houses and theme parks and kids' museums... And many a Halloween Parade. Below are a few suggestions.
Two cautions: check dates, just in case a Halloween Parade isn't held on October 31; and check that the Halloween Parade isn't too scary (or crazy) for your kids.
New York City's Greenwich Village has the most famous Halloween Parade: with amazing giant puppets, marchers and marching bands, and a limited number of floats. This Halloween Parade bills itself as the "Most Wildly Creative Public Participatory Event"; our About.com Guide for NYC includes this night-time happening in Halloween "Fun For All Ages"; I was fortunate to see part of this Halloween parade last year and there were numerous kids on the scene, often in costumes (as were many adults as well.)
For another Halloween parade option in the Village, designed for families with young kids: this Children's Halloween Parade in the afternoon marches around Washington Square Park, and there's candy, face-painting, and live entertainment.
The MommyPoppins site has a roundup of Halloween Parade suggestions: Park Slope (one of the biggest kids' parades in the US) , Battery Park City, and many more.
This Halloween Parade, sponsored by Toms River Fire Company #1, is in its 72nd year and claims to be the second largest in the world, with some 6,000 participants and 100,000 spectators. "From simple masks to full blown articulated fire-breathing floats."
A 60+ year community tradition, with 100 entries and 35,000 participants and spectators, and lots of re-broadcasting.
A decades-old tradition, with haunted house, games, costume contest, and Halloween Parade with marching bands, equestrian units, vintage cars. (West Hollywood, meanwhile, is known for an adults-only Halloween Parade and Carnival that draws hundreds of thousands of revelers; but West Hollywood does have family-friendly Halloween events as well.)
Theme parks go all out for Halloween, and some stage a Halloween Parade as part of the fun. for instance, at Disney World, the special-ticket event, "Mickey's Not-So-Scary Halloween Party", includes a parade, on multiple nights in October.