|Date of birth||7 May 1990|
|Place of birth||Adelaide, Australia|
|Height||1.85 m (6 ft 1 in)|
|2010||→ Adelaide Cobras (loan)||5||(1)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 11:46, 9 February 2015 (UTC).
† Appearances (Goals).
AEK Athens and Panionios
In January 2010 Kostopoulos signed for Adelaide United in Hyundai A-League. On 30 January 2010, Kostopoulos made his senior debut for Adelaide United replacing Adam Hughes in the 79th minute in the match against Wellington Phoenix. At the end of the 2009–2010 A-League season Kostopoulos was loaned to Adelaide Cobras for 2010–2011 season.
On 14 April 2012, in the 2011–2012 A-League season it was announced that Kostopoulos had signed a one-year undisclosed contract with Adelaide United until the end of the 2012–2013 A-League season. Kostopoulos scored his first A-League goal against Melbourne Victory in a 4–2 home victory.
Sydney Olympic FC
In November 2013, Evan Kostopoulos met with Sydney Olympic FC officials and signed a deal with the Belmore-based club. His signature has been met with much praise from fans already, given his proven quality in the A-League.
- Adelaide signs youth striker. theworldgame.sbs.com.au. 14 April 2012. Retrieved 14 April 2012.
- "Case of deja vu as Reds go down to Wellington". Adelaide United. 30 January 2010. Retrieved 31 January 2010.