| Official Name: | Arenópolis |
| Settlement Type: | Municipality |
| Pushpin Map: | Brazil |
| Pushpin Map Caption: | Location in Brazil |
| Coordinates: | -16.3811°N -51.5572°W |
| Subdivision Type: | Country |
| Subdivision Name: | Brazil |
| Subdivision Type1: | Region |
| Subdivision Name1: | Central-West |
| Subdivision Type2: | State |
| Subdivision Name2: | Goiás |
| Subdivision Type3: | Mesoregion |
| Subdivision Type4: | Microregion |
| Subdivision Name4: | Aragarças Microregion |
| Subdivision Type5: | Metrop. region |
| Leader Title: | Mayor |
| Elevation M: | 416 |
| Area Total Km2: | 1074.5 |
| Population Total: | 2,536 |
| Population As Of: | 2020 [1] |
| Population Density Km2: | auto |
| Timezone1: | BRT |
| Utc Offset1: | -3 |
| Postal Code Type: | Postal code |
| Postal Code: | 76235-000 |
| Area Code Type: | Area code |
Arenópolis is a municipality in eastern Goiás state, Brazil. The population was 3,495 (2007) in a total area of 1,074.5 km2.
Arenópolis is located in the Aragarças Microregion in an isolated and underpopulated region of eastern Goiás. There are highway connections with Iporá, 42 km.to the east; and Piranhas, 32 km. to the west. It is between the Rio Piranhas and the Rio Caiapó, both tributaries of the Araguaia River.
The distance to the state capital, Goiânia, is 285 km. and connections are made by GO-060 / Trindade / Turvânia / Israelândia. Neighboring municipalities are:
The main economic activities are cattle raising, agriculture, public administration, commerce, and small transformation industries.
There were 85,600 head of cattle in 2006, of which 9,600 were milk cows.The main agricultural products were rice, corn, manioc, beans, and soybeans. There was modest production of bananas, hearts of palm, and coconut. Commerce had 37 units in 2003 employing 53 workers.
There were 112 automobiles and pickup trucks, 08 trucks, and 96 motorcycles in 2004.There were no financial institutions reporting in 2007.
Arenópolis had a rating of 0.739 and was ranked 110 out of 242 municipalities in Goiás on the United Nations Human Development Index (2000 data). Nationally it was ranked 2,173 out of 5,507 municipalities.
In 1956 Albino Borges moved into this region located in the municipality of Piranhas. He began to sell lots to newcomers attracted by the fertile land and soon a small village appeared called Areia, the name of the stream bathing the region. In 1964 Antônio de Castro moved to the region and worked to raise the village to the category of district, which was achieved in 1971 with the name Arenópolis. Later, in 1982 Arenópolis was dismembered and became a municipality.