Washington (CNN) - As memories fade from last December's horrific school shooting in Newtown, Connecticut, a new national poll indicates that support for stricter gun control laws appears to be fading, too.
According to a new CNN/ORC International survey, 49% of Americans say they support stricter gun control laws, with 50% opposed. The 49% support is down six percentage points from the 55% who said they backed stricter gun control in CNN polling from January, just a few weeks after the tragedy at Sandy Hook Elementary School, where a lone gunman killed 20 young students and six adults before killing himself, in one of the worst mass shootings in U.S. history.
The poll's Wednesday release comes on the same day that 911 tapes from the Newtown shootings are being released.
The survey indicates that the intensity of opinion on the issue of gun control, once an advantage for gun-control advocates, no longer benefits either side. In January, 37% of all Americans strongly favored stricter gun laws, with 27% strongly opposed to them. Now that 10-point difference has completely disappeared, with the number who strongly oppose and strongly favor stricter gun control at essentially the same level.
And according to the poll, geography plays a role in the fading support for gun control.
"Demographically speaking, the drop in support for stricter gun laws is mostly based on where people live, with a 10-point decline in the Midwest and a 15-point drop in urban areas having a lot to do with the overall decline nationally," CNN Polling Director Keating Holland said.
"Two-thirds of people who live in big cities supported stricter gun control laws in the weeks following Newtown; now that figure is down to a bare majority. And while support for new gun laws is down in all regions of the country, it has fallen further in the Midwest," Holland added.
The poll indicates that majorities in the Northeast and the West still favor stricter gun control, but majorities in the South and Midwest now oppose it.
Support for gun control has waxed and waned
The survey's release comes just a few days after the 20th anniversary of the signing of the Brady Bill, which instituted federal background checks on firearm purchases. The law was named after James Brady, President Ronald Reagan's first White House Press Secretary, who was critically wounded during the 1981 assassination attempt on Reagan.
In December 1993, just days after the Brady Bill was signed into law, 70% of all Americans supported stricter gun control. By 1995, that number had dropped to 59%, and by early 1996 it had fallen to just 48%, the lowest level in CNN polling.
By the late 1990s, support for stricter gun control had rebounded to 62%, dropping again to 52% by 2003. A decade later, at the start of this year, it was still in the mid-50s before dropping to 49%.
The CNN poll was conducted by ORC International from Nov. 18-20, with 843 adults nationwide questioned by telephone. The survey's overall sampling error is plus or minus 3.5 percentage points.
CNN Political Editor Paul Steinhauser contributed to this report.