Cruz garnered 1,338 votes, as compared to her formidable opponent Maricarmen Perales Rangel who had 953.
There was a 385 vote difference giving first time candidate Cruz the victory.
Mrs. Cruz was grateful for the vote of confidence from those individuals who voted for her.
"I am excited to begin this new journey alongside my fellow city council members. I want to thank everyone who came out to vote and made this possible," said Cruz.
Mrs. Cruz is scheduled to be sworn in before the end of June.
She now joins the Eagle Pass City Council which includes Mayor Rolando Salinas, Mayor Pro Tem Yolanda Ramon, Councilmen Elias Diaz and Billy Davis.
"I am looking forward to working alongside the City Council and continuing to better our community," concluded Cruz.