Stats for trans natal males (transwomen,) taken from here unless otherwise stated:
ucicorrections.seweb.uci.edu/files/2013/06/Transgender-Inmates-in-CAs-Prisons-An-Empirical-Study-of-a-Vulnerable-Population.pdf
ucicorrections.seweb.uci.edu/files/2013/06/A-Demographic-Assessment-of-Transgender-Inmates-in-Mens-Prisons.pdf
Stats for non-trans natal males, and natal females, taken from here, unless otherwise stated:
www.cdcr.ca.gov/Reports_Research/Offender_Information_Services_Branch/Annual/Census/CENSUSd0812.pdf
Registered sex offender:
Natal females - 1.3%
Trans natal males - 20.5%
Non-trans natal males - 14.2%
So trans natal males are notably more likely to be sex offenders than non-trans natal males, and FAR higher than natal females (which discounts the argument that trans natal males are labelled sex offenders for prostitution, or the natal female rates would be far higher.)
Ethnicity:
Natal Female
Hispanic - 29.4%
White - 36.4%
Black - 29.2%
Trans natal males
Hispanic - 28.3%
White - 28.0%
Black - 34.6%
Non-trans natal males
Hispanic - 39.6%
White - 25.3%
Black - 29.1%
Of the major race/ethnicity groups, it's interesting to see that black trans natal males have notably higher rates of imprisonment than whites and Hispanics, compared to non-trans natal males where Hispanics have the highest incarceration rates by far, and natal females where whites have the highest incarceration rate.
As for sentencing, trans natal males have stats that match non-trans natal males, and differ greatly from natal females'.
Sentencing:
Natal females
Lifer - 8.6%
Life w/o parole - 1.4%
Not a lifer - 91.4
Trans natal males
Lifer - 13.3%
Life w/o parole - 2.4%
Not a lifer - 84.3%
Non-trans natal males
Lifer - 13.7%
Life w/o parole - 2.3%
Not a lifer - 83.6%
The same is true with the type of offence - trans natal male offences are more property focused than crimes against persons', but still align more closely to non-trans natal males, than natal females.
Offence type:
Natal females
Crimes against persons - 32.9%
Property - 34.5%
Drug - 27.2%
Other Crimes - 5.4%
Trans natal males
Crimes against persons - 49.8%
Property - 30.2%
Drug - 16.3%
Other - 3.7%
Non-trans natal males
Crimes against persons - 54.8%
Property - 18.8%
Drug - 17.8%
Other Crimes - 8.5%
Percentage of total demographic incarcerated by population:
Natal females - 0.06%
Trans natal males - 0.89%
Non-trans natal males - 0.86%
Trans natal males have an even higher offence rate that non-trans natal males, which may be partially influenced by higher rates of poverty amongst (particularly Black and Hispanic,) trans natal males.
As of the 2010 census, California had a population of 37,254,518, of which females were 50.3%, which makes the number of women18,739,022. There were 11,408 women housed in California in 2008.
As of the 2010 census, California had a population of 37,254,518, of which males were 49.7%, which makes the number of men 18,515,495. There were 159,753 men housed in prisons in California in 2008.
The estimates of the total transgender population in the US, between 2008 and now, vary between 0.38%, and more recently as much as 1.3%. Recently the blog Culturally Bound Gender investigated the stats, and found that in actuality, the number of trans natal males in the US is 0.2%* of males, which makes the number of trans natal males in California approximately 37,030. According to the source studies, there were at least 332 trans natal males in prisons in California in 2008.