Question: What was the population of the suburb in which Port Melbourne railway station is located as of the 2011 Census?

Context paragraphs:
Montague railway station: Montague was a railway station, now converted to light rail, on the former Port Melbourne railway line in the inner Melbourne suburb of South Melbourne, Australia.  The station was located to the south of Montague Street road underpass, between Woodgate Street and Gladstone Lane, with a large goods shed located on the Melbourne side of the station.  The station has since been demolished and is now served by route 109 trams stopping at a pair of low level platforms.

Port Melbourne, Victoria: Port Melbourne is an inner suburb of Melbourne, Australia, 5 km south-west from Melbourne's Central Business District.  It is split between the local government areas of Melbourne and Port Phillip.  The area to the north of the West Gate Freeway is in the City of Melbourne.  The area to the south is in the City of Port Phillip.  At the 2011 Census, Port Melbourne had a population of 14,521.

Port Melbourne railway station: Port Melbourne is a railway station in the Melbourne suburb of the same name located on the former Port Melbourne line, the first significant railway in Australia.

Princes Bridge railway station: Princes Bridge was a Melbourne railway station built in 1859 and was the terminus for all Epping line and Hurstbridge line trains.  The station was named after the adjacent Princes Bridge, which crosses the Yarra River.  Originally Princes Bridge station was isolated from Flinders Street Station, even though it was adjacent to it, sited just on the opposite side of Swanston Street.  Some years later the railway tracks were extended under the street to join the two stations, and Princes Bridge slowly became amalgamated into the larger Flinders Street Station.

Melbourne railway station: Melbourne railway station was a station at Kings Newton that served the adjacent town of Melbourne, Derbyshire, England.  It was opened in 1868 as the terminus of a Midland Railway branch from .  In 1874 it became a through station as the line was extended to a junction on the Leicester to Burton upon Trent Line near .

Werribee railway station: Werribee railway station is located on the Port Fairy line in Victoria, Australia, and serves the western Melbourne suburb of Werribee.  It was opened on 25 June 1857, by the Geelong and Melbourne Railway Company, as part of the railway line between the two cities.  It also currently serves as the terminus of the suburban electrified Werribee line.

William Angwin (footballer): William C. "Bill" Angwin (13 March 1891 – 4 August 1963) was an Australian rules footballer who played in the Victorian Football League (VFL).  Angwin played three games for Melbourne early in the 1913 VFL season before switching to St Kilda later in the season, playing six games and kicking one goal in the year and a half he was at the club.  The one goal that Angwin kicked for his career was the winning goal in a match against Essendon.  Angwin was a former Port Melbourne Railway United player who also played in Western Australia before his VFL career.

Port Melbourne railway line: The Port Melbourne railway line is a former railway line in Melbourne, Australia.  The line was the first significant railway in Australia, and was opened by the Melbourne and Hobson's Bay Railway Company, to carry passengers arriving in Victoria at Station Pier, and to alleviate the high cost of shipping goods using small vessels up the Yarra River to Melbourne.

North Melbourne railway station: North Melbourne railway station is located on the northern edge of the central business district of Melbourne, Australia.  The station is a major interchange point with the Craigieburn, Flemington Racecourse, Sunbury, Upfield, Werribee and Williamstown lines all servicing the station.  It opened on 6 October 1859.  It is listed on the Victorian Heritage Register.

Graham railway station: Graham was a railway station, now converted to light rail, on the former Port Melbourne railway line, in the inner Melbourne suburb of Port Melbourne, Victoria, Australia.  Located to the north of Graham Street, between Evans Street and Station Street, the station has been demolished since 1987, and is now served by route 109 trams, stopping at a pair of low level platforms.

Supporting paragraphs: Port Melbourne railway station Port Melbourne, Victoria
Answer: 14,521