More Jersey-born people leaving home than returning
That is down on the last census taken in 2001, when the figure was 53%.
The other half is made up of British people, but also 7% from Portugal or Madeira, 3% from Poland, and the rest from elsewhere.
More than 80% of islanders have A-H housing qualifications, allowing them to rent or buy anywhere, while most J category residents, or people "essentially employed" are from the British Isles.
PLACE OF BIRTH
| Jersey || 50% |
| British Isles || 31% |
| Portugal || 7% |
| Poland || 3% |
| Irish Republic || 2% |
| Other European || 3% |
| Other || 4% |
And the majority of people recently moving to the island were under the age of 35.
It also showed that 40% of everyone over the age of 16 was married, 10% were divorced and 34% had never been married.
States statistician Duncan Gibault said the number of people getting married in Jersey was declining.
He said: "The proportion of adults who are married has been declining over the last several decades, whilst the number divorced (and not re-married) has increased from 21 per 1,000 population in 1971 to 101 per 1,000 population in 2011."
Mr Gibault also said that, while Jersey did not legally recognise same sex couples, there were 219 couples living together as of March 2011.
The first breakdown of the census statistics last week revealed Jersey's population has risen by nearly 10,000 in the past decade to 97,857.
Future census bulletins will be based on housing, employment, education and transport.