The show's creator Lauren Iungerich researches the show by going back to her old high school. She says, "every year I go to my old high school and I talk to teenagers about their lives and the things are going through to stay engaged and to stay true to our show and ensuring that we are hitting the right notes".

Ashley Rickards, Beau Mirchoff, Jillian Rose Reed, & Brett Davern have appeared in every episode.

The "carefrontation" letter that Jenna receives and is so frequently mentioned on the show reads as follows: Jenna, As you are now, you could disappear and no one would notice. Below is a list of suggestions that you should seriously consider: Number 1: Stop being a p**** Number 2: Your instincts suck. Second guess them. Number 3: The only people more pathetic than you are your friends. Drop the dead weight. Number 4: When you're pretty, you're happy. And clearly you're not happy. Number 5: Pull your head out of your a** and stand out. Number 6: Nobody likes the pitiful. Stop being such a drag. Number 7: You have to be cruel to be kind. Number 8: Make amends. -A Friend.

Jenna's birthday is December 2, 1995. By her high school graduation in 2015, she and her classmates are technically at the age of 19 or 20 years old.

Ashley Rickards was born on May 4, 1992, making her three years younger than Beau Mirchoff, who was born January 13, 1989. On the show, Jenna was born on December 2, 1995, making her one year older than Matty, who was born on November 4, 1996.

"Yummy Yogurt" and "Red Onion" referenced on the show are real restaurants in Palos Verdes.

Former contestant Hannah McIalwain from The Glee Project (2011),plays the part of Angel ,Jenna's mentee from episode Touched by an angel .

The high school on the show is called "Palos Hills High School" (Home of the Titans, colors are blue/gold). Until 1991, there were 3 high schools in Palos Verdes - Miraleste High School (Home of the Marauders, colors were maroon/gold), Palos Verdes High School (Home of the Sea Kings, colors were black/red) and Rolling Hills High School (Home of the Titans, colors were blue/gold). Due to district closures, the 3 high schools were consolidated into one high school, located on the Rolling Hills High School campus. The new school was renamed Palos Verdes Peninsula High School (home of the Panthers, colors are black/gold). In 2002, climbing enrollments and overcrowding at Palos Verdes Peninsula High School led the district to reopen Palos Verdes High School. The show uses the mascot (Titans) and colors (Blue/Gold) of the former Rolling Hills High School.

When Jenna turns sixteen, Valerie gives her a Sixteen Candles (1984) DVD as a gift. The movie featured actor Anthony Michael Hall, who plays Mr. Hart, the Creative Writing teacher from Jenna's high school.