2025 Alameda and Contra Costa Counties, California - Corn Mazes and More.org

Looking for a local corn maze or hayride in Alameda and Contra Costa Counties, California?  Scroll down this page and you will see the all of those in Alameda and Contra Costa Counties, California, sorted by county. Some are huge corn mazes with hayrides, pumpkins, corn cannons, inflatables and others are simple corn mazes with little else.  Most also have loads of pumpkins to choose from.  To really make it fun for  your kids, look for those that have the extra activities, like a corn cannon, cow train, inflatables, farm animals, pumpkin patch or zip lines.  There is usually a small fee for the mazes (of course, the  more elaborate mazes tend to charge more. Hayrides are often free. A LWAYS call before you go to confirm whether they are open this year and any requirements, they don't always report changes to me, and many closed permanently due to the covid lockdowns!

And if you know of one I missed and want to add it or correct the information, please let me know!

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Updates for October 2025

October: Corn mazes aren't open until late July or August - Same with Pumpkin patches. And if you are looking for a pumpkin patch, this website for pumpkin patches). You may also want to try the latest fun, Zombie Paintball, see this website!.

Corn mazes, sorted by county

Click on Resources above, if you need a county map

Alameda County

• G & M Farms - corn maze, pumpkin patch, straw bale maze, more
  487 East Airway Blvd, Livermore, CA 94551. Phone: (925) 447- FARM. Email: Diane@gmfarms.com. Open: CLOSED MONDAYS & TUESDAYS, Cornfield Maze Hours Wednesday to Thursday 4-8 PM, Friday 4-10 PM, Saturday 10 AM -10 PM, Sunday 10 am to 8 PM; Pumpkin Patch Hours are Wednesday to Friday 2-6 PM, Saturday and Sunday 10 am to 6 PM. OPEN OCTOBER 1-31. G & M Farms Pumpkin Patch in Livermore is the farm that is so fun it has been featured twice on the David Letterman Show! Bring the whole family there’s harvest fun for all ages at G&M Farms, and it’s easy to find, right off I-580 at Isabel Avenue in Livermore. *HAYRIDE, PEDAL CARTS, COW TRAIN, JUMP PILLOWS AND PONY RIDES ARE ONLY OPEN ON WEEKENDS* Directions: Click here for a a map and directions. See these pages for more information: Pumpkin patch, Corn maze , Straw bale maze, Visit our farm animals, Enjoy a pony ride (weekends only), Purchase farm fresh vegetables and Fall decorations. G&M has ample parking, easy freeway access near BART Park 'n ride. G & M Farms Cornfield Maze and Pumpkin Patch in Livermore has been featured TWICE on the David Letterman Show. For Mom, there's fresh produce, decorative gourds and Indian corn. Your little ones will love G&M's farm animals and the free straw bale maze and corn box. Weekends feature Pony Rides, Pedal Carts, and our new attraction The Barnyard Blasters! plus don't forget to ride G & M Farms' famous Cow Train. Download your discount coupon HERE.. [ Click here to update the listing ] (UPDATED: September 16, 2025, JBS) 
• Speer Family Farms - pumpkins for sale in the shop or farmstand, pumpkin patch- harvested and laid out on the ground or lawn, straw or hay bale maze, corn cannon, we also have pie pumpkins, Fall festival, concessions or refreshment stand, porta-potties, restrooms, picnic area, face painting, inflatables/bounce house, carnival rides, petting zoo, farm animals, birthday parties, weddings and wedding parties, school tours, group reservations
  1911 Telegraph Ave, Oakland, CA 94612. Phone: (510) 705-2352. Email: info@speerfamilyfarms.com. Open: Monday to Sunday from 10 am to 9 September25 pm to October31. Click here for current open hours, days and dates. Directions: Click here for a map and directions. Payment: Cash, ApplePay, Visa/MasterCard. Click here for our Facebook page. ASSORTED SLIDES / JUMP HOUSES / PUMPKIN SHOOTER / SHIP SLIDE / NOAH’S ARK / RAINBOW SLIDE / CAROUSEL / ZORB – HUMAN HAMSTER BALLS / MINI TRAIN / PETTING ZOO / ADULT CHILL AREA + MORE!. (UPDATED: October 08, 2020)  [ Click here to update the listing ] (UPDATED: October 13, 2025, JBS) 

Contra Costa County 

• G and S Farms - pumpkin patch, pumpkins, corn maze
  2490 Sellers Avenue, Brentwood, CA 94513. Phone: 916-717-8143. Email: info@gsfarms.net. Open: Monday through Friday from 10am- 4 pm, Saturday + Sunday from 10 am to 4 pm. We do accommodate private groups and may have intermittent closures for our classroom encounters. We welcome you to come join us at our seasonal U-Pick Pumpkin Patch! Bring your families, enjoy our fall activities and pick your favorite pumpkin right off the vine! Bring your classroom to the farm with our grade-appropriate education programs & field trips.
  And Check in next spring when our Cherry U-Picks re-open! Each May, we welcome Bay Area families into our orchards for our Annual Cherry U-Picks. We'll provide buckets and a beautiful crop of cherries for you and your family to pick yourselves! The U-Pick season, ranging from early May to mid June, has become a treasured tradition in the Brentwood farming community. We hope you'll come spend a day in the sun, enjoying the natural beauty of a fruitful orchard in spring! (ADDED: October 04, 2019, JBS) [ Click here to update the listing ] (UPDATED: September 16, 2025, JBS) 
• Three Nunns Farm - pumpkin patch, corn maze
  Old Marsh Creek Road, Brentwood, CA 94513. Phone: (925) 550-0870. Email: threenunnsfarm@gmail.com. Open: daily from 10 am to 6 pm, until October 31. Carve out some time for our pumpkins! We are open all of October for pumpkin fun, agricultural education, & community involvement! For information about group reservations & discounts, please email us at, we promise to get back to you as soon as we can! Directions: Three Nunns Farm is located on the corner of Marsh Creek & Vasco Road. From Marsh Creek Road turn north onto Old Marsh Creek Road and follow the signs until you see the farm stand. Please park along Old Marsh Creek Road or within designated parking areas. Our pumpkin patch and interactive corn maze are both great activities to explore the farm and let off some energy! The farm has plenty of room to roam around and we encourage children (and parents) to get as dirty as possible! We also have a variety of fresh produce available for purchase including pomegranates, cucumbers, watermelons, bell peppers, cantaloupes, peppers, and decorative corn stalks and olive branches. You can also find us at the Brentwood Farmers’ Market on Saturdays! Click here for a link to the Facebook page. (ADDED: October 04, 2019, JBS) [ Click here to update the listing ] (UPDATED: September 16, 2025, JBS)