If you are part of a couple, please make separate individual accounts for each member of your relationship. NO 'COUPLES' ACCOUNTS.

Click on the Join us! button in the upper right to get started.


Welcome to Poly-Under-40, we're proud to be the most active polyamory organization in North America.  Poly-Under-40 is as social network for young adults exploring polyamory or living our individual poly styles. If you are a young adult looking for a friendly, supporting social group where you can learn about the poly lovestyle, meet other young polyamorists, or talk about your own multi-partner relationships, then we would love to meet you.


Poly-Under-40 was founded because we believe that it is extremely beneficial for young people living non-monogamous lives to have a peer group with similar life situations with whom they can socialize and discuss this critical aspect of their unconventional lives.


Heres how we define ourselves,

Polyamory: Having multiple intimate loving relationship with the full knowledge and consent of everyone involved.

Under 40: Do you remember the 70's? Neither do we!

Chicago: The best city in the world.


We host social events and discussion meetings in downtown Chicago and nearby surrounding areas (those accessible by public transit).


Want to learn more about Polyamory?

  • Then come to our next event and see for yourself!

Click on the Join us! button in the upper right to get started.


What we are not:

This group is not a place for cheating or hookups.

Our events will never involved any sexual activity.


PS- Some advice regarding accounts:

  • We have over 900 members, so if you have a common first name please add an initial to your account name. We have 20 other Chris's who will thank you.
  • Our membership committee goes through at least dozen applications every week.  To increase your application's chance of approval, please:
    • Answer the questions completely
    • Use a recognizable profile picture.  If you are uncomfortable posting a picture due to the nature of your job or the like, feel free to message the organizers and we can discuss options.
    • List any current member(s) that you know
    • Make your interests and other meetups public
    • Volunteer to help promote the group



To learn more about the Chicago Polyamory Community visit one of our special interest polyamory groups below....


If you would like to help promote PU40, just add the following text to one of your online profiles (e.g. OKCupid, Facebook, Fetlife)

"Polyamory" is the relationship style of having multiple loving, but non-exclusive, relationships. To learn more about the Chicago polyamory community check out Poly-Under-40, a meetup group for the young and polyamorous and polycurious here in Chicago: www.meetup.com/Poly-Under-40-Chicago

We're 1,034 Young Polyamorists

New members must be approved by the Organizer

Content of this Meetup Group is only visible to members

Upcoming Meetups

  • Sunday, March 8, 2015 5:00 PM

    Poly Community's 2015 Newbie Mix & Mingle

    78 Young Polyamorists attending
Founded Jul 14, 2011


Dan, Christina, Hayley F., Lillith Padden

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I started the group because there wasn't any other type of group like this. I've met some great folks in the group who have become close friends and have also met some amazing business owners.

Bill, started New York City Gay Craft Beer Lovers

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