You can be a member of the Twin cities ACM Chapter for free to be able to know events held by the chapter. 
The membership registration link is below:
Sign-up Form:

https://docs.google.com/forms/d/e/1FAIpQLSfY1dRLaKYxSLgXr2iTTaTTP9nVC7-9igUZUjySPRpaN804Zw/viewform