Raised in Sicklerville, New Jersey, King played for the varsity soccer team at Winslow Township High School where she set a record as the all-time leading scorer (for both girls and boys) with 105 career goals and 36 assists.

[4] During high school, King also competed in track-and-field and was named New Jersey state champion in both the indoor and outdoor 4×400 during her junior year.

[3] King played club soccer for Winslow Tigers where she helped lead the team to regional and state championships.

[4] She also played for Princeton SA IGFA 97/98 Tigers NPL and won the 2015 US Club Mid-Atlantic Regional and NEWSS Championships.

[6][7] As a freshman in the 2016 season, King was a starting forward in all matches and was the Wolfpack's leading scorer with eight goals, including four game-winners.

[4] Her penalty kick goal against Minnesota helped North Carolina advance to the second round of the 2016 NCAA Championship.

[4] She scored a hat trick in North Carolina's 4–1 win over Notre Dame in the ACC Championship quarterfinals.

[19] In 2022, King helped OL Reign finish in first place during the regular season, winning the NWSL Shield.

[22] OL Reign Individual In September 2020, King entered into a collaboration with the National Women's Hockey League to help improve representation on NWHL merchandise.