With an increase from the comparable 2001 census of 10.2 percent, the US non-governmental in-house counsel population has grown steadily. (See my post of Sept. 10, 2005 regarding comparative growth rates of the 200 largest law firms and law departments.)
The average of 3.05 lawyers per corporation stands higher, I am sure, than the median number, but the executive summary I read did not provide that latter figure. As for other demographics, survey respondents had held their position as in-house counsel for an average of 11 years and had worked in other legal positions an average of 6 years before going in-house. (See my post of Sept. 4, 2005 about demographics of law departments.)