Autumn in Walnut Creek, California, is often marked by a variety of themed celebrations held around the end of October. These celebrations can range from family-friendly daytime activities to evening events designed for adults. Examples include haunted houses, costume parties, pumpkin patches, and trick-or-treating events organized by local businesses.
These festivities offer several benefits to the community. They provide opportunities for social interaction, foster a sense of community spirit, and support local businesses. Historically, such celebrations have evolved from harvest festivals and religious observances into secular events focused on entertainment and community building. The organized events provide a safer alternative to unsupervised trick-or-treating, especially for younger children.