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Best 21st Birthday Party Ideas – 21 Unforgettable 21st Party Themes

Turning 21 is a milestone for many! This is because being 21 allows you to go to casinos and bars in some places. This is also sometimes the age where you transition from being a student or teenager to being a “real” adult and being on your own and working. No matter what, turning 21 is a big deal and should be celebrated! So, here are our 21st birthday party ideas that will make it a birthday to remember!

21st Birthday Party Ideas for a party to remember!

2000 theme

There are tons of fun party themes, but if you’re turning 21 in 2020—something, of course—that means you were born in the 2000s. This is one of the best 21st birthday party themes! Kick off this birthday with a millennial-themed bash! For example, let guests dress up in 2000s inspired duds and dance to popular music from the Y2K era. This would be a great throwback party!

Host a Champagne Brunch

Brunch is no longer exclusively for the older demographic and has become a popular weekend activity for the younger generation. Spice up your birthday by hosting a champagne brunch! Serve delicious mimosas in fancy glasses in addition to pastries, fresh fruit and waffles. Happy brunch!

Birthday Glamp-Out

21st birthday camp out

Like outside? Then turn a camp-out around by having a glamp-out! Rent luxury tent accommodation or set up your own with comfy pillows, soft blankets and twinkling lights. Next, roast smores around a campfire in cozy robes. It’s convenience and camping in one!

Have a Pool Party

If you are celebrating your 21St birthday in the warmer months, then a pool party might be a good option! Soak up the sun with your friends while staying cool in the pool. Fight in the water, then enjoy a delicious meal from the grill. Everyone loves a pool party!

Click here to see our top 30 adult party themes for a guaranteed good time!

High tea

Another of our 21st birthday party ideas is by marking the milestone with high tea! Often hosted at a local hotel or tea room, a high tea event is both classy and fun! Throw on your favorite fascinator and enjoy the day with your girls!

Click here to read about our best 21st birthday party ideas for boys.

Take a Road Trip

21st birthday party ideas

Love to explore? Then go on a road trip! Plan a trip in advance. Or if you feel spontaneous for example, flip a coin to see where you turn and see where you end up. Either way, a road trip will create memories that will last a lifetime. Don’t forget to make a playlist!

Hire a Private Chef

If you’re a foodie but also want to stay in, a private chef might be the perfect idea for your 21stSt birthday A chef can prepare restaurant-quality meals for you and your guests from the comfort of your own home. Whether you dress up or down, remember to enjoy your food cooked just for you!

Host a Casino Night

Try your luck by hosting a casino night! Set up tables for Black Jack, Roulette, and not to mention Crabs. Instead, you can arrange a trip to a casino for your friends. Vegas anyone?

Have a Weekend

With thousands of hotels and Airbnbs, there are many interesting places to visit! Whether you choose a weekend of sightseeing in a big city or just want to hang out at a cute cottage and chill, there are tons of options for a weekend away from your crew!

Have a Karaoke Party

A karaoke party is perfect for anyone who loves to sing, perform and especially have fun! Set a theme for the night such as Broadway tunes or boy band hits for you and your guests to sing. In addition, dress up as your favorite singer. You can even go and visit a real karaoke bar!

Host a Fancy Dress Party

fancy dress party for 21st birthday

Expensive dresses are not only for proms and weddings but also for birthdays! Throw a fancy dress party where everyone wears their most formal attire. Add elegance to your event with beautiful dishware and delicious food in addition to champagne! Wear your best and have fun!

Go to A Day Spa

A day of pampering is always a stellar idea! First, book yourself a massage for true relaxation. Second, enjoy a manicure or facial. Finally, sip on some cucumber water and catch up with your friends. You and your besties will be energized and ready to take on the town!

Host a Boho Backyard Picnic

Looking for fun and unique ideas to celebrate turning 21? Then consider a boho backyard picnic! A backyard picnic can be simple but wonderful for you and your guests to enjoy. Place cushions around a low table and display wildflowers in jars for added beauty. Furthermore, serve a charcuterie board filled with a variety of snacks or order your favorite take-out. It will be a wonderful picnic!

Host an Indoor Picnic

If you are a winter baby but still want a picnic idea for your 21St birthday, don’t be afraid. You can definitely host an indoor picnic! Pick a theme, get some pillows or blankets, then add some nice decorations to help create a cozy space inside. Bottom line, wet or cold weather won’t stop you from having a great picnic!

Create an Escape Room

An escape room is also a unique way to celebrate your 21stSt birthday These rooms are a perfect way to work together as a team with your friends while you test your puzzle skills! Win or lose, this will be a birthday for the memory books!

Mamma Mia Party

mama mia party ideas

A Mamma Mia party is the ultimate celebration for someone who loves music, dancing, and a touch of retro glamour. This is an opportunity to bring himself to the sunny shores of Greece, where happy moments and unforgettable friendships live. The infectious energy of ABBA’s timeless hits will make her and her friends’ hearts sing and dance, creating memories they will cherish forever.

Host a Mixology Party

Looking to learn some new skills in the art of beverage making? Then a mixology party might be for you! Hire a professional bartender to teach you and your friends the basics. Then, have fun making your own concoctions and maybe see who can come up with the most creative drink name!

Go on a Bar Crawl

No matter where you are in the world, if you’re 21, you can go to a bar. Plan a bar crawl with your friends or join a pre-planned tour. Your night will be filled with different atmospheres, drinks, people and music!

Have a Luau Party

A luau party is a wonderful theme for a 21St birthday party! Ask guests to rock their Hawaiian shirts and give everyone a lei. Then, serve tropical drinks. Finally, host a limbo competition and you’ll have a grand ol’ time!

Have a Sleepover

Plan a night of fun with your best friend! Watch your favorite movie while eating delicious food. Pamper yourself with facials at home and chat until you fall asleep. In the morning, serve up a delicious brunch or make your own waffles station. Sleepovers are fun at any age!

Throw A Fiesta

Being 21 is time to party so why not throw your own fiesta! Serve delicious authentic Mexican food. A taco bar would be awesome with all arrangements! Dance the night away while sipping margaritas. It would be an incredible way to celebrate!

Birthday Rave

2000 theme party

There’s nothing like a birthday rave! Pump up the jams and play music from the 90’s. Additionally, add some glowsticks, neon clothes, and a black light and you’ll have a great night!

In conclusion, we hope you liked our 21St birthday party ideas! Try any of our ideas or create your own. Either way, cherish your 21stSt birthday and celebrate it happily with your loved ones! For more party ideas, click here. Have yourself a wonderful birthday!

About the Author

Photo by Author

Jane Sheriff is the founder, creative director, party planner and mother of three. She started Darling Celebrations in 2012 to share easy and beautiful ideas for celebrating life’s special events.

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