samples of actual ballots taken before the official end of polling at 8pm.
Harris Interactive estimated the Socialist’s score at between 52,7 and 53,3 percent.
All the estimates were in line with previous opinion polls, which were banned from publication in France from midnight on Friday.
Hollande, who led in the polls throughout the campaign, won the April 22 first round with 28,6 percent to 27,2 percent for Sarkozy, making the right-winger the first-ever incumbent to lose in the first round.
Grey skies and rain showers greeted voters across much of France, but turnout was high, hitting 71.96 percent at 5pm according to interior ministry figures.
More than 46 million people were eligible to vote.
The election was marked by fears over European Union-imposed austerity and economic globalisation, and Hollande has said his first foreign meeting will be with German Chancellor Angela Merkel, the key driver of EU budget policy.
Hollande has vowed to renegotiate the hard-fought fiscal austerity pact signed by EU leaders in March and to make it focus more on growth, but is facing resistance from Merkel.
The French vote coincides with an election in Greece, where voters were also expected to punish the governing parties for landing the country in its bleak economic state.
Anger over sputtering economies has brought down leaders from Ireland to Portugal since the debt crisis washed over the European continent.
Hollande has said he will move quickly to implement his traditionally Socialist tax-and-spend programme, which calls for boosting taxes on the rich, increasing state spending and hiring some 60 000 teachers.
Sarkozy fought a fierce campaign, saying a victory for Hollande would spark market panic and financial chaos and calling him a “liar” and “slanderer” in the final days of the race. — AFP.



