Dublin has a population of some 495,000 (CSO Census 2002) within the official city boundary, though the population of the Dublin metropolitan area is considerably higher, with the development and spread of suburbs and satellite towns continuing into the surrounding areas. The population of the city and region is 1,164,400 (CSO Census 2002); although even this figure does not accurately reflect the population of "urban Dublin", failing to account for largely integrated parts of north-east Kildare and conversely, undeveloped rural areas in north Fingal. The population of urban Dublin is currently projected to be 1,274,100 for the year 2006 when the next census will take place.

Though there is no exact agreed definition of the "Greater Dublin Area" it would be generally accepted as including Dublin city and all of counties Wicklow, Kildare, Fingal, South Dublin, Meath and Dun Laoghaire-Rathdown with the limits of the commuter belt stretching to a much greater distance.

There is a vibrant night life in Dublin — the main centre for this is in the Temple Bar area south of the Liffey. This area has become synonymous with stag and hen parties and tourists, causing many locals to steer clear of the area.

There are several theatres within the city centre, the largest of which include including the Abbey Theatre, the Gate Theatre, the Olympia Theatre, and the Gaiety Theatre, which opens its doors after the evening theatre production to host a variety of live music, dancing, and films. The Gaiety's bars are open later than any others in the city.

The UGC cinema complex is located north of the Liffey. Alternative and special-interest cinema can be found in the Irish Film Institute in Temple Bar, and in the Screen Cinema on d'Olier St

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