As a result of Saturday's county conventions, Obama gained nine delegates, Clinton lost one, and Edwards lost eight delegates. Moving up by nine while Clinton moved down by one gave Obama a net gain of 10 over his rival for the Democratic presidential nomination.
The delegate allocations changed from Jan. 3 because delegates' presidential preferences are allowed to change prior to the springtime state party convention.
To highlight the significance of Obama netting 10 delegates at Saturday's low-profile Iowa county conventions, Obama campaign manager David Plouffe issued a statement juxtaposing it with Clinton's high-profile win earlier this month in Ohio's primary.
"With all of the results in," said Plouffe in a statement whose accuracy was confirmed by the Iowa Democratic Party, "Sen. Obama earned 25 delegates, while Sen. Clinton earned 14. Sen. Obama netted 10 delegates tonight."
"For comparison purposes," he added, "Sen. Clinton netted nine delegates in Ohio" by winning that state's primary on March 4.
Overall, Obama now leads Clinton by 189 delegates, according to an ABC News estimate. In all, Obama has 1,614 delegates, including 1,407 pledged delegates and 207 superdelegates. Clinton has 1,485 delegates, including 1,240 pledged delegates and 245 superdelegates. A total of 2,025 delegates are needed to earn the Democratic presidential nomination.