As of May 14, 2012:
5.2% (466 women of 8964 CASS members)
As of Dec 31, 2011:
5.3% (549 women of 10,311 CASS members)

Compare:
5.6% in 2010 (487 women of 9238 CASS members)
6.9% Society (23989 women of 348,360 IEEE Society memberships)
10.7% IEEE (44360 women of 415,989 IEEE members)
16.3% CASS GOLD (1681 women of 10,311 CASS GOLD members)

Women in CASS by grade as of May 14, 2012

Women in CASS by grade as of May 14, 2012

Women in CASS by grade, 2-year comparison (2010 and 2011)

Women in CASS by grade, 2-year comparison (2010 and 2011)

Percent women in CASS by grade (# CASS women in grade / total CASS in grade)

Percent women in CASS by grade (# CASS women in grade / total CASS in grade)

Regional trends in CASS female population, 2007-2011 (# CASS women in region / total CASS in region)

Regional trends in CASS female population, 2007-2011 (# CASS women in region / total CASS in region)

Regional trends in CASS female population, 2004-2011 (# CASS women in R1-6, R7-10/ total CASS women)

Regional trends in CASS female population, 2004-2011 (# CASS women in R1-6, R7-10/ total CASS women)