History:Founded: 1997 as SKK (took over basketball section from AZS Siedlce), In 2019 SKK was taken over by newly created UKS Basket
Home Court: OSiR, ul. Prusa 6, Siedlce
League positions:
In 2019 SKK which was relegated from 1Liga, was taken over by USK Basket which started in 3Liga
League achievements:
Polish 2Liga Group A Finalist -2010Polish 2Liga Group C Regular Season Champion -2014 Polish 2Liga Group C Champion -2014 Polish PZKosz Cup Finalist -2015 |
| Since 2023 |
 2019-2023 |
 1992-2019 |
 Until 1992 |
League positions:
| Season | Tier | Division | W-L | Position + PlayOff | European competitions |
|---|---|---|---|---|---|
| 1983-07 | 3 | Liga Okregowa | |||
| 2007-08? | 4 | 3Liga | 1st  | ||
| 2008-09 | 3 | 2Liga | 11-15 | 10th (Group C) | |
| 2009-10 | 3 | 2Liga | 26-9 | 2nd (Group A) | |
| 2010-11 | 2 | 1Liga | 15-20 | 9th | |
| 2011-12 | 2 | 1Liga | 3rd | ||
| 2012-13 | 2 | 1Liga | 15th  | ||
| 2013-14 | 3 | 2Liga | 1st | ||
| 2014-15 | 2 | 1Liga | 13th | ||
| 2015-16 | 2 | 1Liga | 9th | ||
| 2016-17 | 2 | 1Liga | 13th | ||
| 2017-18 | 2 | 1Liga | 15th | ||
| 2018-19? | 2 | 1Liga | 16th | ||
| 2019-20 | 4 | 3Liga | 4th | ||
| 2020-21 | 4 | 3Liga | 12th | ||
| 2021-22 | 4 | 3Liga | 8th | ||
| 2022-23 | 4 | 3Liga | 4-4 | 10th (Group WOZKosz 07-12) | |
| 2023-24 | 4 | 3Liga | 3-5 | 3rd (Group WOZKosz-D) | |
| 2024-25? | 4 | 3Liga | 2-12 | 8th (WOZKosz 1-8) | |
| 2025-25 | 4 | 3Liga | 8-2 | 2nd (Group WOZKosz-A) | |
| 2025-26 | 4 | 3Liga | 8-2 | 2nd (Group WOZKosz-A) |
