The account was created Monday by Steve Sisolak, the Clark County Commission Chair from Las Vegas.
It is the deadliest mass shooting in modern US history.
Lines were blocks long at blood banks in Las Vegas as residents rushed to do what they could to help the wounded.
"We had a couple of people that chose not to go", said Jessica Donamaria, Preferred Travel Inc. of Minot.More news: Mizoram: Not a single Rohingya entered state says Home Minister Lalzirliana
"We've met the immediate need of blood, so now what we're asking people to do is pledge to come back in a week, come back in two weeks ..." Those who want to donate are encouraged to schedule appointments beforehand.
Las Vegas-based Allegiant Air announced Monday that it will help family members reach victims of Sunday's mass shooting in Las Vegas for free. Bonfils Blood Center at Austin Bluffs Pkwy and N Academy Blvd stayed open an hour after closing time Monday to take donations.
Donate to Sisolak's GoFundMe here; if you're in the Las Vegas area, visit one of the UBS centers below.
Donation centers need all blood types, especially O-positive and O-negative.
"We thank the first responders, law enforcement officers, and medical professionals who worked all through the night to save lives".