"During the last census in 2001 there were 1,685,267 people in Northern Ireland but it's estimated that that number has probably risen to 1,775,000 people by 2009"@en . "During the last census in 2001 there were 1,685,267 people in Northern Ireland but it's estimated that that number has probably risen to 1,775,000 people by 2009"@en . . . . "What is the population of Northern Ireland"@en . .