Poniente Almeriense is a comarca in Almería, Spain. It is sometimes also known as the "sea of plastic" (Mar de plástico) due to the numerous greenhouses that cover the area. The comarca contains ten municipalities (the tenth, Balanegra, was created in 2015 from part of Berja municipality) and 259,357 inhabitants in an area of 971 km. The "sea of plastic" was one of the subjects of We feed the world, a 2005 documentary; and the setting of Spanish crime drama Mar de plástico.

The typical agricultural products of the greenhouses are: cucumbers, watermelons, eggplants, zucchinis, peaches, peppers and tomatoes.

The comarca borders the Alboran Sea to the South, the city of Almería to the east, the Sierra de Gádor to the north, and the municipality of Albuñol (in Granada province) to the west.

The Poniente Almeriense contains the following ten municipalities:

Municipality	Population 2011	Population 2018
Adra	24,375	24,859
Balanegra +	-	2,983
Berja +	15,155	12,381
Dalías	4,007	4,031
El Ejido	80,839	84,710
Enix	426	418
Felix	663	642
La Mojonera	8,476	9,003
Roquetas de Mar	86,799	94,925
Vícar	23,482	25,405
Totals	244,222	259,357

Note: + an additional municipality, Balanegra, was created in 2015 from part of Berja municipality.

• Las Norias de Daza - Google maps
• Greenhouses of the Campo de Dalías, Almería Province, Spain - NASA Earth Observatory
• Southeastern Spain's Greenhouse Landscape: Plastic over Sand-Beds.

36°46′56″N 2°44′35″W / 36.78234°N 2.74315°W / 36.78234; -2.74315