Each year, approximately
Payment for jury duty on the state level varies according to county. While most of them are around the $5/day mark, federal courts boast $20/day. The cheapest county (for state juries) is in South Carolina, paying only two dollars a day. Compare that to the generous $40/day paid by Massachusett's Middlesex County. Juror pay costs a total of $200 million dollars annually.
The rolls of potential jurors come from many sources, including:
Graphical bars used with permission and taken from the CD-ROM accompanying the Que Corporation book Using HTML by Tom Savola.