Private use of the KidStrong center during your party
Birthday parties that rock.
Kids' Birthday Parties in Waldwick, NJ
A private, coach-led KidStrong party filled with action, confidence-building games, and unforgettable birthday memories.
KidStrong Waldwick
Birthday parties are hosted at KidStrong Waldwick, 140 Franklin Turnpike #9 in Waldwick, NJ. Call us at +1 201-808-5000 to check party dates and availability.
140 Franklin Turnpike #9Waldwick, NJWhy Waldwick, NJ families love us
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CHELSEA R.
"I was a bit apprehensive signing my son up due to him being on the spectrum although high functioning. However he is doing progressively well. Huge shout out to coach Diego. He knows my son needs a little extra guiding hand and does his best to ensure he doesn't get too distracted. That brings me to the one thing I wish I c..."
October 11, 2026
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ANGELA S.
"KidStrong Waldwick is hands down one of the best kids’ gyms I’ve ever been to, and as a Bergen County mom on the toddler circuit, I’ve tried quite a few! It surpasses the rest in engagement, fun, and learning. What really sets this place apart is the staff. Since coming here, we’ve had the chance to interact with A..."
October 4, 2026
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RITESH R.
"This place is fantastic. The coaches are wonderfully accommodating, tailoring their approach to meet each child's individual needs and strengths. Coach Ashley, Coach Cooper, and Alison are exceptionally patient, kind, and thoughtful in how they engage with every student. Highly recommended!"
September 5, 2026
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BEN N.
"I cannot recommend this specific KidStrong location enough. I have a VERY busy 5-year-old, and the staff are attentive, patient, and have really made a big difference in my kid's life. The owner is hands-on, caring, and engaged, and I definitely recommend joining."
August 27, 2026
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KAILYN B.
"Nice to see a place for kids to exercise, let out all the energy, have fun, try new things and meet new friends."
August 9, 2026
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YESSIKA V.
"Coach Rose and Aidan are exceptional. They’ve have been coaching my children for years now and every class is just better than the last one. My children look forward to their Kidstrong class every week with the same excitement of years ago!"
August 7, 2026
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KIMBERLY C.
"My kids love the classes and the coaches. They look forward to KidStrong every week and we have recommended it to so many friends!"
July 4, 2026
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TIMOTHY P.
"The staff is so nice and they are great with kids. My 5 year old daughter’s confidence has grown so much and my 3 year old son runs around like a mad man in expertly controlled chaos. The staff does such a great job."
June 30, 2026
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PATRICK K.
"My son is under 3 years old and has been going to KidStrong in Waldwick, and we've seen such a positive difference. He's gained more confidence, improved his balance and coordination, and it gives him a great outlet to burn off all that toddler energy by the end of the day. The coaches are absolutely fantastic—encouragin..."
June 24, 2026
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TINA P.
"My daughter had a free trial at kids strong Waldwick New Jersey To be honest with you she loved it very much The coaches were great My daughter will be going to kids strong for now on I definitely recommend kids strong Waldwick"
June 24, 2026
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MIKE W.
"The coaches are awesome and our kids love it. It's a fun and healthy activity that has been great for their development."
June 15, 2026
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R M.
"All of the coaches were very friendly, the facility is clean and organized, and I felt that the structure of the class was perfect for my son and the skills they are intending to develop with him over time!"
June 14, 2026
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LORI D.
"My son is deaf. He was welcomed in with open arms. Alison one of the coaches knew some sign language and was able to communicate with James. A few minutes into class my son told me he loved it and wanted to come back, so we signed up after our first class. We had a wonderful experience."
June 11, 2026
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KAY P.
"My children absolutely love it. The coaches are wonderful. They know how to really engage with the children and motivate them to try their best."
June 9, 2026
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ALISHA R.
"KidStrong has been a great experience, building confidence, independence, coordination, and social skills. Love how the program combines physical activity, teamwork, listening, and personal growth in a structured, supportive environment. The coaches are positive, energetic, and invested in each child's success."
June 4, 2026
What you get
Everything needed for an epic party.
We handle the movement, games, coaching, setup, and cleanup so families can focus on celebrating.
Book a Birthday Party90-minute private party
Up to 15 kids included
Two KidStrong coaches
One KidStrong T-shirt for birthday child
Food and cake celebration time included
Set-up and clean-up included
90
minute private party
15
kids included
2
KidStrong coaches
Guided fun
70 minutes of guided activities
A KidStrong birthday party is non-stop action, packed with KidStrong-exclusive games and activities guaranteed to create epic memories, with the last 20 minutes dedicated to food and cake.
Book a Birthday PartyPrivate event
The whole facility is yours
Want your kid to be the VIP? We’ve got you covered. With KidStrong Parties, the entire facility is dedicated to your kid’s special day.
Book a Birthday PartyCoach-led
Two amazing coaches
You get not one, but TWO of our KidStrong-certified coaches for the entire duration of your party.
Book a Birthday PartyMake it yours
Party add-ons at KidStrong Waldwick.
Add-ons available at KidStrong Waldwick. Call+1 201-808-5000 to discuss options that can make the day even easier.
Additional Kids
Additional Party Time
KidStrong T-Shirts for Guests
Goody Bags
Additional Coach Support
Food & Beverage Packages (where available)
Paper Products & Party Supplies (where available)
Ready to celebrate?
Book a KidStrong birthday party today.
Private facility. Expert coaches. Epic memories. Let’s make this birthday strong.
Questions Parents Ask
Frequently Asked Questions
Everything you need to know about KidStrong birthday parties.
How many kids can attend the birthday party?
Each party includes up to 15 kids. Additional kids may be added for an additional fee. Call KidStrong Waldwick at +1 201-808-5000 to check availability and pricing.
How old does my kid need to be to book a party?
KidStrong offers birthday parties for kids aged 1-11. Guests 3 years and younger must have an adult (18 or older) on the floor with them.
What time can I arrive?
Check with KidStrong Waldwick at +1 201-808-5000 on arrival time.
What am I allowed to bring to the party? What do I need to bring?
Families are welcome to bring food, beverages, cake, decorations, and other celebration items. Contact KidStrong Waldwick for any location-specific guidelines.
Is gratuity included or should I tip the coaches?
For details on gratuities or any applicable service fees associated with your party, contact KidStrong Waldwick at +1 201-808-5000.
Does the party host’s child count as a part of the total child count?
Yes, any kid that is on the floor counts towards the party count.
Are waivers required for participation?
Any participant on the floor, 18 and under, must have a signed waiver. When you book your party, we will give you a link where you and your guests can sign the waiver ahead of time.
Do parents need to stay at the party?
If the kids are under 3, a parent needs to be on the floor, for kids older than that, please check with the center on parent policy.
How is my party run? What is the schedule of the party?
Our coaches will check in all guests and ensure that a waiver has been completed. Once checked in, kids can join the coach on the blue floor for explore time. When the majority of the guests arrive (typically 5 minutes after party start time), or when the party parent is ready to begin, the coaches will begin the games on the blue floor. Blue floor games and activities will take about 70 minutes and the remaining party time will be for food/cake.
How far in advance should I book my party?
To ensure you get the date and time of your party, we recommend at least 1 month in advance.
What is the deposit amount?
Check with KidStrong Waldwick at +1 201-808-5000 for party deposit prices. Deposits are applied to your remaining balance at the end of your party. You can book your party online at any time.
Can I pay my party balance prior to the day of the party?
Yes, you can pay for the party balance ahead of time by contacting KidStrong Waldwick at +1 201-808-5000. Keep in mind, a final headcount will take place the day of the party and additional kids will be charged the day of the party.
What is the cancellation policy?
All party deposits are NON-REFUNDABLE. Check with KidStrong Waldwick at +1 201-808-5000 for the full cancellation policy.
Do I have to sign a party agreement?
Yes. All parties require a signed party agreement before the reservation can be confirmed.
Where can I get the waivers?
The link to our waiver form is always easily available on our website. You will also receive a link to share with your guests in your part confirmation email. It is recommended that your guests complete the waiver prior to arrival.
Do I have to be a KidStrong member to host a KidStrong party?
No. Non-members are welcome to host parties at KidStrong. Check with KidStrong Waldwick on the perks of becoming a member.
Do you offer any add-on packages?
After booking your party, KidStrong Waldwick will get in touch with you about the optional add-ons available for parties.
What Add-ons are available for a KidStrong Party?
Call KidStrong Waldwick at +1 201-808-5000 for available add-ons and pricing.