Los Angeles Superior Court Judge Patricia Schnegg set the amount Friday evening. Schnegg imposed several restrictions on Lohan's release, including that she must wear an alcohol-monitoring bracelet.
The monitor must be in place within 24 hours of her release.
It is unclear when Lohan could be released.
As conditions of bail, Lohan is also prohibited from possessing any controlled substances, refrain from drinking and stay out of places where they are primarily sold.
Schnegg's ruling came after Lohan's attorney, Shawn Chapman Holley, filed a late-afternoon appeal seeking bail for the "Mean Girls" star. Holley had been prohibited from arguing for bail during the Friday morning hearing when Judge Elden Fox ordered the starlet held until an Oct. 22 hearing.
Schnegg's ruling states that defendants are entitled to bail in misdemeanor cases, which applies to Lohan.
District Attorney's spokeswoman Sandi Gibbons said prosecutors did not oppose Lohan's motion to seek bail.
Lohan was whisked from a Beverly Hills court Friday morning and was at the facility for about eight hours when the order clearing her release was issued.
Fox's decision to jail Lohan came after the "Mean Girls" star failed a court-ordered drug test after being released from rehab last month.
Lohan remains in an isolation unit of a women's jail in suburban Los Angeles, where she spent 14 days after a previous judge determined she violated the terms of her probation.