Comedy Central was tooting its horn today, announcing that May 2011 ratings vaulted The Daily Show with Jon Stewart and The Colbert Report to the top of the late-night heap – among all 11 broadcast network and cable channel offerings — in several key demographics.

And they had the raw data to back it up.

Stewart was #1 in almost all categories (note: Comedy Central did not break out numbers specifically for women viewers, because CC targets young men above all other viewers), even virtually tying/beating The Tonight Show with Jay Leno in the overall 18-49 age demo.

Other things that jump out from the raw data supplied by Nielsen Media Research (disclosure: Nielsen used to pay me money on a subsidiary project): The numbers finally break down viewership among all of the consistent late-night offerings, including Mo'Nique's BET show, and Chelsea Handler's E! nights of the roundtable; grumblings about whether to renew George Lopez's Lopez Tonight can be expected when you see that barely any of Conan O'Brien's audience is sticking around after midnight — Lopez ranked 10th or next-to-last in viewers 18-49, only edging out Mo'Nique (though Lopez did move up to 7th when counting only viewers 18-24, and 6th for men 18-24); Late Night with Jimmy Fallon is more than holding its own against its direct competition; and Conan and Chelsea Lately benefit the most when looking at 18-34 instead of 18-49.

Full raw data after the jump!

BROADCAST AND CABLE LATE NIGHT
MAY 2011 MONTHLY AVERAGES

PERSONS 18-49

"The Daily Show with Jon Stewart"1,344,000
"The Tonight Show with Jay Leno"1,340,000
"The Late Show with David Letterman"1,124,000
"The Colbert Report"978,000
"Late Night with Jimmy Fallon"848,000
"Jimmy Kimmel Live"735,000
"The Late Late Show with Craig Ferguson"725,000
"Conan"701,000
"Chelsea Lately"672,000
"Lopez Tonight"295,000
"The Mo'Nique Show"249,000

PERSONS 18-34

"The Daily Show with Jon Stewart"754,000
"The Colbert Report"585,000
"Conan"467,000
"The Tonight Show with Jay Leno"434,000
"Chelsea Lately"407,000
"The Late Show with David Letterman"346,000
"Late Night with Jimmy Fallon"324,000
"The Late Late Show with Craig Ferguson"257,000
"Jimmy Kimmel Live"248,000
"Lopez Tonight"173,000
"The Mo'Nique Show"142,000

PERSONS 18-24

"The Daily Show with Jon Stewart"282,000
"The Colbert Report"236,000
"Conan"173,000
"Chelsea Lately"168,000
"The Tonight Show with Jay Leno"126,000
"Late Night with Jimmy Fallon"124,000
"Lopez Tonight"77,000
"Jimmy Kimmel Live"71,000
"The Late Show with David Letterman"60,000
"The Mo'Nique Show"60,000
"The Late Late Show with Craig Ferguson"47,000

MEN 18-34

"The Daily Show with Jon Stewart"499,000
"The Colbert Report"398,000
"Conan"278,000
"The Tonight Show with Jay Leno"193,000
"Late Night with Jimmy Fallon"161,000
"The Late Show with David Letterman"150,000
"The Late Late Show with Craig Ferguson"119,000
"Lopez Tonight"106,000
"Chelsea Lately"102,000
"Jimmy Kimmel Live"97,000
"The Mo'Nique Show"47,000

MEN 18-24

"The Daily Show with Jon Stewart"199,000
"The Colbert Report"168,000
"Conan"102,000
"Late Night with Jimmy Fallon"71,000
"The Tonight Show with Jay Leno"64,000
"Lopez Tonight"47,000
"Jimmy Kimmel Live"26,000
"The Late Show with David Letterman"25,000
"Chelsea Lately"23,000
"The Late Late Show with Craig Ferguson"20,000
"The Mo'Nique Show"15,000