New Jersey’s Earth Day Events by County

Created by NJYD Environmental Caucus (for awareness - not hosted by NJYD)

It's the perfect time to celebrate the Earth, and we've compiled a list of exciting events across the state that you can attend! We encourage you to snap some photos and send them to us for our NJYDEC and NJYD socials. If you post them yourselves, you can use our tags to show how NJYD is taking action this month for the environment.

Statewide/Regional

• New Jersey State Park Service Calendar of Events
• Yoga, Birding, Hikes, and more with NJ Audubon
• Central Jersey:
  • Stream Clean-Ups with The Watershed Institute 4/12, 4/26, 4/27
• North Jersey:
  • River Clean-Ups with The Musconetcong Watershed Association 4/12
  • Annual Stream Clean-Ups with Rartian Headwaters 4/12
  • 5th Annual Plant for Pollinators Program Plant Sale 4/1-4/18

Atlantic

• Midtown’s Adopt-A-Block Community Day, 4/12/25
• Historic Smithville Earth Day Green Market , 4/25/25
• 33rd Annual ACUA Earth Day Festival, 4/27/25

Bergen

• Bergen County Zoo's annual Party for the Planet, 4/26/25
• 2025 Daffodil Festival and Earth Day Fair, 4/27/25, Ridgewood
• Container Gardening in Small Space and an Introduction to Self-Watering Containers, 4/10/25, Glen Rock
• Community Science Saturday: Spring Signals, 4/12/25, Teaneck
• Paramus Earth Day Celebration , 5/10/25 (In MAY)

Burlington

• Burlington County Parks Event Calendar
• Beach Clean Ups at Palmyra Nature Cove on the Delaware River
• Delran Park Clean Up , 4/20/25
• Eastampton Historic Smithville Park Earth Fair , 4/27/25
• A Day in the Life of a Wildlife Rehabilitator 4/12/25, Cedar Run Wildlife Refuge, Medford
• Native Plant Sale 4/25/25 - 4/26/25, Pinelands Preservation Alliance, Pemberton
• Rancocas Nature Center
  • Saturday Guided Walk, 4/19/25
  • Connect With Nature Series: The Spring Native Garden Field Trip, 4/26/25
  • Drop In And Meet The Rancocas Animals, 4/24/25

Camden

• Collingswood Annual Green Day Event , 4/12/25
• Blackwood Annual Sustainability Plant Sale, 4/26/25
• Camden Cramer Hill Bird Walk , 4/26/25

Cumberland

• Earth Day Craft, Millville 4/22/25

Cape May County

• Earth Day Celebration 2025 4/25/2025

Essex

• Sierra Club Cherry Tree Blossom hike at Branch Brook Park, 4/12/25
• Earth Day Celebration at the Essex County Environmental Center, 4/27/25
• 2nd Annual Earth Day Celebration at the Newark Public Library, 4/19/25
• Elderly Earth Day Volunteer Opportunity in West Orange 4/22/25
• 2025 Montclair Earth Week Celebration, 4/22/25 - 4/26/25

Gloucester

• Scotland Run Park, Clayton Spring Wildflower Talk and Walk , 4/12/25
• Pitman Community Earth Day, 4/26/2025
• Earth Day Celebration at Red Bank Battlefield National Park, 4/27/2025

Hudson

• Bayonne Citywide Earth Day Cleanup 4/26/25
  • (download the form and send it to [email protected]) 
• Hudson County 3rd Annual Earth Day , 4/26/25, Lincoln Park, Jersey City
• NJDEP’s Liberty State Park Earth Day Celebration, 4/26/25, Jersey City

Hunterdon

• Hunterdon County Earth Day Festival 4/5/2025
• Frenchtown Eco-Week & Green Fair 4/21 - 4/25

Mercer

• EarthShare NJ’s Individual Green Day Challenge 4/12/2025
• Ewing Stream Cleanup 2025 4/12/2025
• Lawrence East Stream Cleanup 2025 4/12/2025
• Lawrence West Stream Cleanup 2025 4/12/2025
• Billy Johnson Mountain Lakes Nature Preserve Stewardship Day  4/19/2025
• Princeton Earth Day Celebration Yoga, Fashion, Acapella and Arts Performances 4/27/25

Middlesex

• Cranbury Stream Cleanup 2025, 4/12/2025
• Plainsboro Stream Cleanup 2025, 4/12/2025
• North Brunswick Pulda Farms Earth Day Celebration 4/5/25
• Highland Park Earth Day Fair 5/4/25 (MAY)

Monmouth

• Monmouth County Park Events 
• Roosevelt Stream Cleanup 2025, 4/12/2025
• Waterspirit Earth Day Beach Cleanup
• Butterfly Garden Earth Day Event 4/22/25

Morris

• Great Swamp Outdoor Education Center, Chatham Township
  • Toddler Trek: Earth Day!, 4/16/2025
  • Earth Day Weekend Family Nature Stroll, 4/19/2025
  • Adventures in S.T.E.M: Renewable Energy, 4/22/2025

Ocean 

• Ocean County College Event Series 4/18-4/19
• Plumstead Library Earth Day Fair 4/26/25
• 32nd Annual Forked River Mountain Clean-Up, 4/27/25 

Passaic

• City Green Presents Earth Day Festival, Clifton , 4/19/25
• Woodland Park 3rd Annual Earth Day 4/26/25
• Ringwood Earth Day Celebration 4/27/25

Salem

• (None right now. Want to host an event? Contact us to learn how!)

Somerset

• Somerville Earth Month Calendar
• Millstone Stream Cleanup 2025, 4/12/2025
• Montgomery Stream Cleanup 2025, 4/12/2025
• Far Hills Spring Bird Walk , 4/30/25 

Sussex

• Lake Hopatcong’s Roadside Cleanup 4/19/2025
• Group Hike to Celebrate Trails Day, 4/26/2025, Blairstown
• Andover Township Cleanup 4/26/25
• Sparta Township Earth Day Fair, 5/3/25 (MAY)

Union

• Union County's Wild Earth Fest, 4/27/2025, Mountainside
• Westfield Community Park Clean Up 4/27/2025
• Citywide Earth Day Cleanup 4/22/2025, Elizabeth More info

Warren 

• Pequest Spring Hike, 4/25/25, Mansfield Township
• Phillipsburg Farmers Market Grand Opening & Earth Day Festival 4/27/25