Lake Hopatcong Events I Lake Hopatcong Foundation

Shredding Event

9:00am - 12:00pm
Jefferson Township High School
Saturday, March 29, 2025
Community Events

Eco Friendly Gardening for Home Grounds Conference

9:00am - 12:30pm
Sussex County Community College, Performing Arts Center Atrium
Saturday, March 29, 2025
Community Events

Celebrate Spring, a Shopping Extravaganza!

10:00am - 4:00pm
St. Jude of Hopatcong
Saturday, March 29, 2025
Community Events

EarthShare New Jersey Rocks 2025

5:00pm - 10:00pm
Coopers Riverview
Saturday, March 29, 2025
Community Events

Opening Day of Trout Season

(all day)
State of New Jersey
Saturday, April 5, 2025
Community Events

Vintage Costume Jewelry Show

9:00am - 1:00pm
Sparta Avenue Stage
Saturday, April 5, 2025
Community Events

Animal Care Centers Open House

12:00pm - 3:00pm
Animal Care Centers
Saturday, April 5, 2025
Community Events

Hopatcong Observatory Star Party: The Moon

8:00pm - 9:00pm
Hopatcong Observatory
Saturday, April 5, 2025
Community Events

Jefferson Township Museum Open House

1:00pm - 4:00pm
Jefferson Township Museum
Sunday, April 6, 2025
Community Events

Get your NJ Boat Safety Certificate (NASBLA Certified!)

6:00pm -
Wednesday, April 9, 2025 at 9:30pm
Mt. Arlington Fire Dept
Monday, April 7, 2025
Community Events

NJ Boat Safety Exam for the Online Course

8:00pm - 9:30pm
Mt. Arlington Fire Dept
Wednesday, April 9, 2025
Community Events

Boating Safety Course & Exam

8:00am - 5:00pm
Mt. Arlington Civic Center
Saturday, April 12, 2025
Community Events

Antiques and Vintage Market

9:00am - 2:00pm
Sparta VFW Hall
Saturday, April 12, 2025
Community Events

MWA Annual River Cleanup

9:00am - 11:00am
Hopatcong State Park & Various Locations
Saturday, April 12, 2025
Community Events

Spring Community Litter Clean up

9:00am - 11:00am
Roxbury Township DPW-Clean Communities
Saturday, April 12, 2025
Community Events

Sparta Special Olympics Spring 2025 Vendor & Craft Fair

10:00am - 3:00pm
Sparta High School
Saturday, April 12, 2025
Community Events

Spring into Sustainability Community Day

12:00pm - 4:00pm
Kean Skylands
Saturday, April 12, 2025
Community Events

Country Line Dance

5:30pm - 11:00pm
St Thomas the Apostle RC Church
Saturday, April 12, 2025
Community Events

Get your NJ Boat Safety Certificate (NASBLA Certified!)

8:00am - 4:30pm
Mt. Arlington Fire Dept
Sunday, April 13, 2025
Community Events

Lake Hopatcong Commission Meeting

7:00pm - 8:00pm
Lake Hopatcong Foundation
Monday, April 14, 2025
Community Events

Get your NJ Boat Safety Certificate (NASBLA Certified!)

6:00pm -
Thursday, April 24, 2025 at 6:00pm
Mt. Arlington Fire Dept
Tuesday, April 22, 2025
Community Events

NJ Boat Safety Exam for the Online Course

8:00pm - 9:30pm
Mt. Arlington Fire Dept
Thursday, April 24, 2025
Community Events

Boating Safety Course & Exam

8:00am - 5:00pm
Mt. Arlington Civic Center
Saturday, April 26, 2025
Community Events

Mental Health Community Resource and Family Fun Day

4:00pm - 7:00pm
Raymour and Flanigan
Friday, May 2, 2025
Community Events

Boating Safety Course & Exam

8:00am - 5:00pm
Garden State Yacht Club
Saturday, May 3, 2025
Community Events

Beekeeping Demo

10:30am - 11:30am
HarBee Beekeeping
Saturday, May 3, 2025
Community Events

Ultimate Cash Bingo Plus!

5:30pm - 11:00pm
Jefferson Township High School cafeterias
Friday, May 9, 2025
Community Events

Hudson Farm Charity Hike for Hopatcong

7:30am - 12:00pm
Hudson Farm
Saturday, May 10, 2025
Community Events

Lake Hopatcong Commission Meeting

7:00pm - 8:00pm
Lake Hopatcong Foundation
Monday, May 12, 2025
Community Events

Northwest NJ Hike for Hope

8:00am - 11:00am
Camp Jefferson
Saturday, May 31, 2025
Community Events

New Jersey Free Freshwater Fishing Day

(all day)
New Jersey
Saturday, June 7, 2025
Community Events

Lake Hopatcong Antique and Classic Boat Society Boat Show

10:00am - 4:00pm
Lake Hopatcong Yacht Club
Saturday, June 7, 2025
Community Events

Lake Hopatcong Commission Meeting

7:00pm - 8:00pm
Lake Hopatcong Foundation
Monday, June 9, 2025
Community Events

Photography Exhibit

7:00pm -
Saturday, June 14, 2025 at 12:03am
White Rock Lake Park's Clubhouse (the Pavilion)
Thursday, June 12, 2025
Community Events

Lake Hopatcong Fireworks

9:30pm - 10:30pm
Lake Hopatcong
Friday, June 27, 2025
Community Events

NJ Boat Regulation Commission Meeting

10:00am - 11:00am
Lake Hopatcong Yacht Club
Wednesday, July 9, 2025
Community Events

J-Town Jamboree

11:00am - 7:00pm
Jefferson Township High School fields
Saturday, July 12, 2025
Community Events

Lake Hopatcong Commission Meeting

7:00pm - 8:00pm
Lake Hopatcong Foundation
Monday, July 14, 2025
Community Events

Lake Hopatcong Commission Meeting

7:00pm - 8:00pm
Lake Hopatcong Foundation
Monday, August 11, 2025
Community Events

Lake Hopatcong Commission Meeting

7:00pm - 8:00pm
Lake Hopatcong Foundation
Monday, September 8, 2025
Community Events

Lake Hopatcong Commission Meeting

7:00pm - 8:00pm
Lake Hopatcong Foundation
Monday, October 13, 2025
Community Events

New Jersey Free Freshwater Fishing Day

(all day)
New Jersey
Saturday, October 18, 2025
Community Events

Lake Hopatcong Commission Meeting

7:00pm - 8:00pm
Lake Hopatcong Foundation
Monday, November 10, 2025
Community Events

Lake Hopatcong Commission Meeting

7:00pm - 8:00pm
Lake Hopatcong Foundation
Monday, December 8, 2025
Community Events