Information from the Statistics and Census Service (DSEC) indicated that the population of Macao was estimated at 556,800 as at 31 March 2011, an increase of 4,500 (+0.8%) from end-2010.

In the first quarter of 2011, there were 1,274 live births, down by 10.3% quarter-to-quarter. Gender ratio of the newborn was 108.5, with 663 male babies. Number of mortality cases totalled 509, up by 16.2% quarter-to-quarter; major underlying causes of death were Diseases of the Circulatory System and Neoplasms. Meanwhile, 2 cases of fetal mortality were recorded.

There were 2,004 cases of Notifiable diseases reported in this quarter, consisting mainly of Influenza (1,119 cases), H1N1 (Swine Influenza ) (238 cases) and Acute Norovirus gastroenteropathy (156 cases).

In addition, 873 cases of marriage registration were recorded, up by 7.5% over the fourth quarter of 2010.

In the first quarter of 2011, there were 2,081 Chinese immigrants with One-way Exit Permit moving to Macao, a decrease of 1,365 quarter-to-quarter; meanwhile, 292 illegal immigrants were repatriated. Moreover, a total of 704 individuals were authorized to reside in Macao, down slightly by 19 quarter-to-quarter.

Total number of non-resident workers stood at 81,416 at the end of the first quarter, up by 5,603 quarter-to-quarter.