From the Summary: "As of June 24, 2021, 147 women are serving in the 117th Congress. There are 123 women serving in the House (including 3 Delegates and the Resident Commissioner), 90 Democrats and 33 Republicans. There are 24 women in the Senate, 16 Democrats and 8 Republicans. Initially, at the beginning of the 117th Congress, there were 148 women, and since then two House Members resigned; three House Members took their respective oaths of office in February, April, and June 2021; one Senator resigned; and one Senator's appointed term expired. These 148 women who were initially sworn in surpassed the previous number of 130 women serving at the close of the 116th Congress. During the 116th Congress, the number of women serving fluctuated: there were a record 131 women initially sworn in; one woman in the House subsequently resigned; two women were appointed to the Senate, and one of those Senate appointments expired before the end of the Congress."
CRS Report for Congress, R43244
Congressional Research Service: https://crsreports.congress.gov/