Although the Women's Twenty20 County Cup of 2025 brought a new and complete framework, the origins of a county-based Twenty20 tournament for women in England go back far further than that. Since its start in 2009, the competition, which during its previous incarnation was referred to as the Women's Twenty20 Cup, has been an essential component of the domestic schedule. Having an understanding of its development gives essential context for the present iteration and brings attention to the ongoing expansion of women's cricket.

During the years 2009 through 2019, the Women's Twenty20 Cup was played concurrently with the Women's County Championship, which was a tournament of 50 overs. Teams played against one another in tiered divisions at the beginning of the season, with promotion and relegation providing an additional layer of competitive intensity. In 2009, Surrey became the first team to win the Division 1 championship, which marked the beginning of a decade of competition amongst counties. Over these years, eight different teams have been able to win the trophy, with Kent proving to be the most successful side, winning three trophies in 2011, 2013, and 2016.

These are some of the most notable seasons and champions from this era:

• 2012: Sussex triumphed, showcasing their dominance in the T20 format.
• 2015: Sussex again emerged victorious, further cementing their status.
• 2017: Lancashire claimed their first title, signaling their rising prominence in the county circuit.
• 2018: Middlesex celebrated a memorable victory.
• 2019: Warwickshire was the final national champions under this format before the restructuring of women's domestic cricket.

Due to the COVID-19 epidemic, the tournament was canceled for the 2020 season, which resulted in a time of major upheaval in the structure of the women's domestic competition. During the years 2021 and 2023, regional teams continued to participate in new professional tournaments like as the Rachael Heyhoe Flint Trophy (50-over) and the Charlotte Edwards Cup (T20). However, the Women's Twenty20 Cup remained to be played on a regional basis, and there was no overall national champion. This period functioned as a transitional phase, which made it possible for regional centers to be developed while at the same time offering opportunities for county players to compete.

The Women's Twenty20 Cup in 2024 saw a return to a more centralized format, with teams being grouped into four regional groups and the champions of each group advancing to a national finals group. The year 2024 was Derbyshire's maiden championship, Lara Shaw was the player who scored the most runs and Emma Thatcher was the player who took the most wickets. Additionally, Derbyshire won the title. The European Cricket Board (ECB) demonstrated its dedication to a healthy and entertaining county structure by laying part of the foundation for the complete knockout format that will be adopted in 2025 during this same season.

Throughout these prior seasons, the Women's Twenty20 County Cup has constantly been an important platform for the growth of players. This tournament provided a platform for many of England's current and previous international players to improve their abilities by allowing them to compete against challenging opponents and learn how to perform under pressure. The regular high-level competition has been a significant contributor to the general improvement in the quality of women's cricket being played throughout the nation. A rich background for comprehending the present competitive situation is provided by the heritage of these previous tournaments, which adds to the vivid narrative and gives a rich backdrop. The historical performances and rivalries that were built in earlier seasons often serve to fuel the excitement of current matches, which attracts a significant amount of attention from fans who follow the path of their favorite county teams and players.