Emmaus, homelessness charity organization, and CSA, a leading market research firm in France, jointly carried out the survey that asked 1,000 people about their living condition.
Some 56 percent responders admitted worry about being homeless, up from 47 percent in December 2007. The number of people said losing home "very possible" has increased to 12 percent from 4 percent in the same period.
In the poll released on Thursday, Emmaus estimated there were 100,000 people sleeping on the streets in France.
Sixty-four percent responders thought the government should be the responsibility taker for the welfare of those people sleeping on the street.