From the longer English Wikipedia page 
Zlēkas parish (Latvian: Zlēku pagasts) is an administrative unit of the Ventspils Municipality, Latvia. Prior to the 2009 administrative reforms it was part of Ventspils District. The parish has a population of 577 (as of 1/07/2010) and covers an area of 107.155 km2.
More information on the Latvian Wikipedia page