I think area specific, there are more boys here though than other areas of the country.

CDC data - in 2005 in US, 1.05 males to 1 female birth ratio (you can adjust by year here: http://www.nationmaster.com/country-info/stats/People/Sex-ratio/At-birth#2005)

Other 'sex ratio' (boy to girl) general trends (1940-2002) http://www.cdc.gov/nchs/pressroom/05facts/moreboys.htm

Anonymous wrote:What does this have to do with anthropology?

What does your question have to do with a 1.5 year old thread?

Daughter was in a class all the way through elementary that was around 2/3 girls Five classes per grade-all the same.

My 2005 daughter is finishing 2nd and all 3 years that she has been in public school, it has been slightly more boys.

What does this have to do with anthropology?

I have a DD born in 2005 and her first grade class also skews towards boys. MoCo public.

I saw somewhere through some Fairfax County statistics that this area has more boys than girls. My boy is also born 2005 and I definitely see more boys than girls everywhere. Possibly some environmental reason? Each jurisdiction keeps track of how many boys and girls are born. It would be interesting to see the trends.

My son's kindergarten had 19 girls and 6 boys. We eventually moved him to another school.

2004-2005 DC. 12 girls in a class of 30.