Who We Are

The Rio del Mar Improvement Association is a non-profit neighborhood organization.  Our members are committed to maintaining and improving the Rio del Mar community. The RDMIA mission is making the Rio del Mar neighborhood a better place.

We strive to achieve the mission by:

  • Representing key community interests to Santa Cruz County government officials

  • Facilitating communication and engagement

  • Promoting neighborhood beautification

The association actively engages in these activities on behalf of its homeowners and residents:

  • Negotiate and initiate improvement projects, benefits and services that improve RDM resident’s quality of life

  • Educate homeowners and renters so they can more easily make informed choices

  • Advocate and represent vital issues to government leaders on behalf of residents

  • Protect community property values and natural resources from overuse, pollution, ill-advised development and neglect 

  • Host twice-yearly membership meetings covering important local issues and updates

  • Broadcast useful community information via informative quarterly newsletters

The Rio Del Mar community boundaries are Aptos Creek, Hidden Beach, and Highway 1 and encompasses approximately 3,000 residents.  Thank you to those who are already members!  Please consider a membership or volunteering if you haven't already.

Board Of Directors

The RDMIA Board of Directors meet the 1st Wednesday evening of the month at the Aptos Fire Station on Soquel Drive.  Meetings are open to the public.


Current Officers and Directors:

  • President:  Dan Rothenbush     

  • Vice President:  Jerry Cannella    

  • Secretary:  Donna Townsend (newsletter, communications)              

  • Treasurer:  Sam Nazzal

  • Member:  Peter Townsend (tech and website)

Director positions are open now and we encourage your participation and input.  If interested, please contact us at info@rdmia.org.

Board meeting agenda and minutes are available upon request. The RDMIA bylaws are found here and the original Articles of Incorporation from 1941(!) are found here.

Past Presidents are listed here.

© 2020 Rio Del Mar Improvement Association

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