|Coordinates: 41°6′13″N 30°41′37″E / 41.10361°N 30.69361°ECoordinates: 41°6′13″N 30°41′37″E / 41.10361°N 30.69361°E|
|• Mayor||İbrahim ALTUNSOY (AKP)|
|• Kaymakam||Murat Duru|
|• District||481.69 km2 (185.98 sq mi)|
|• District density||110/km2 (290/sq mi)|
Karasu is a town in Sakarya Province, northwestern Turkey, on the Black Sea coast. It has an overwinter population of around 30,746, which increases in the summer due to tourism. Much of its commerce centers on hazelnut farming and tourism.
The Acarlar Floodplain Forest is located partly in Karasu.
- "Area of regions (including lakes), km²". Regional Statistics Database. Turkish Statistical Institute. 2002. Retrieved 2013-03-05.
- "Population of province/district centers and towns/villages by districts - 2012". Address Based Population Registration System (ABPRS) Database. Turkish Statistical Institute. Retrieved 2013-02-27.
- "Acarlar Gölü Longozu" (in Turkish). Sakarya Orman ve Su İşleri Müdürlüğü. Retrieved 2016-10-29.
- Prothero, G.W. (1920). Anatolia. London: H.M. Stationery Office. p. 103.
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