Statewide opinion polling for the April, May, and June 2008 Democratic Party presidential primaries

This article is a collection of statewide public opinion polls that have been conducted relating to the April, May, and June Democratic presidential primaries, 2008.
Pennsylvania.
Pennsylvania winner: Hillary Clinton<br>
Format: Primary "see: Pennsylvania Democratic primary, 2008<br>
Date: April 22, 2008<br>
Delegates at stake 188<br>
Delegates won "To be determined"
Indiana.
 Indiana winner: Hillary Clinton<br>
Format: Primary "see: Indiana Democratic primary, 2008"<br>
Date: 6 May 2008<br>
Delegates at stake 72<br>
Delegates won "To be determined"
"The sample set for some polls in this table is not unique and overlaps with polls from previous days. These polls are marked as Tracking Polls."
North Carolina.
Format: Primary "see: North Carolina Democratic primary, 2008"<br>
Date: 6 May 2008<br>
Delegates at stake 115<br>
Delegates won "To be determined"
"The sample set for some polls in this table is not unique and overlaps with polls from previous days. These polls are marked as Tracking Polls."
West Virginia.
 West Virginia winner: "Hillary Clinton"<br>
Format: Primary "see: West Virginia Democratic primary, 2008"<br>
Date: May 13, 2008<br>
Delegates at stake 28<br>
Delegates won "To be determined"
Kentucky.
 Kentucky winner: "Hillary Clinton"<br>
Format: Primary "see: Kentucky Democratic primary, 2008"<br>
Date: 20 May 2008<br>
Delegates at stake 51<br>
Delegates won "To be determined"<br>
Oregon.
 Oregon winner: "Barack Obama"<br>
Format: Mail-only Primary "see: Oregon Democratic primary, 2008"<br>
Dates: May 2–20, 2008<br>
Delegates at stake 52<br>
Delegates won "To be determined"<br>
Puerto Rico.
 Puerto Rico winner: Hillary Clinton<br>
Format: Primary "see: Puerto Rico Democratic primary, 2008<br>
Date: June 1, 2008<br>
Delegates at stake 55<br>
Delegates won "To be determined"
South Dakota.
 South Dakota winner: Hillary Clinton<br>
Format: Primary "see: South Dakota Democratic primary, 2008<br>
Date: June 3, 2008<br>
Delegates at stake 15<br>
Delegates won "To be determined"
Montana.
 Montana winner: Barack Obama<br>
Format: Primary "see: Montana Democratic primary, 2008"<br>
Date: June 3, 2008<br>
Delegates at stake 16<br>
Delegates won "To be determined"<br>