Dangjin Citizen

The first plan to establish a football club in the city emerged in December 2019, when the city of Dangjin announced that it wanted to set up its own franchise. With Dangjin City administration approval, the club was founded and held their founding ceremony on 10 March 2021 to enter the 2021 K4 League season.

In their inaugural season, Dangjin Citizens finished 3rd and gained promotion to via the playoffs to the 2022 K3 League season. The following year they finished last and were subsequently relegated back for the 2023 K4 League season.

Dangjin started the 2023 season strong with 6 win from 7 matches. This included two Korean FA Cup wins. They weren't able to keep up the momentum, but still finished close to the promotion playoff zone. In the Korean FA Cup, Dangjing dispatched K5 League's Gwangju Hwajeong and K3 League's Busan Transportation Corporation FC, but exited in the third round with a 2-1 loss away against Paju Citizen FC.

During the 2024 season, Dangjing was inconsistent, but despite three losses in their previous three matched, they went into the last match of the season with a change to finish in the promotion playoff position. The results was a 6-0 away loss against a surging Seoul Nowon United FC. In a notably congested table, Dangjin finished 8th, equal on points with Seoul Nowon United in the 3rd. In the Korean FA Cup, the team exited in the first round with a 3-1 loss away to Daejeon Korail FC.

The 2025 season started with 2 league wins, a first round Korea Cup exit against K3 League's Gangneung Citizen FC, followed by 2 league losses. The club's first coach, Han Sang-min is still in charge of the team. On 15 November 2025, Dangjin Citizen secure promotion to K3 League from next season due to despite lose in Final matchday and return to their tier after three years absence.

On 19 August 2026, Dangjin Citizen reach to Korea Cup quarter final for the first time after defeat Jeonbuk Hyundai Motors on penalties 3–5 after draw 2–2. Dangjin was first team from third tier to reach quarter final for cup upset.