| Season | 2020 |
|---|---|
| Dates | 16 May – 22 November 2020 |
| Champions | Paju Citizen (1st title) |
| Promoted | Paju Citizen Ulsan Citizen |
| Matches played | 157 |
| Goals scored | 482 (3.07 per match) |
| Best Player | Heo Keon[1] |
| Top goalscorer | Yoo Dong-gyu (15 goals)[1] |
2021 → | |
The 2020 K4 League is the first season of the K4 League. The K4 League was regarded as the successor to the K3 League Basic, which was abolished in 2019.
Five K3 League Advanced teams, six K3 League Basic teams and two newly-founded teams entered in the inaugural season.[2] The 13 participating teams played each other twice. The top two teams could be directly promoted to the relaunched K3 League, and the third and fourth-placed teams qualified for the promotion play-offs.[3]