The ICM survey, apart from conducting interviews with 1,000 US residents, polled a further 3,000 people in the United Kingdom, Germany and France.
The share of the European population that do not believe in any cooperation between government agencies and tech companies was even smaller, the survey showed.
Only 10 percent of German, 9 percent of French and 7 percent of British respondents acknowledged efforts by international social networks and large IT corporations to protect user privacy.
European and US citizens became more concerned about privacy after former NSA contractor Edward Snowden in 2013 exposed the practices of the NSA and other international intelligence agencies in accessing the private data of individuals, corporations and governments, without prior legal authorization.
In 2014, a large number of major tech firms, including Apple, Microsoft and Google disclosed for the first time requests they had received from the NSA as part of an extensive US surveillance program called PRISM.
The disclosures revealed that tens of thousands of personal accounts had been turned over to US authorities.
In May, the Reform Government Surveillance group comprising telecommunications corporations like Google, Microsoft, Twitter and Yahoo pressed US senators to approve an NSA reform bill that would require Washington to seek warrants to access data stored by tech companies.
The bill was blocked by the US Senate.
The international public opinion research project Sputnik.Polls was launched in 2014, in conjunction with leading British public opinion survey specialists ICM Research. It conducts regular opinion polls to monitor public sentiment toward social, political and cultural issues in Europe and the United States.
