Arroio Grande | |
|---|---|
Location in Rio Grande do Sul state | |
| Coordinates:32°14′16″S53°5′13″W / 32.23778°S 53.08694°W /-32.23778; -53.08694 | |
| Country | Brazil |
| State | Rio Grande do Sul |
| Mesoregion | Sudeste Rio-Grandense |
| Microregion | Jaguarão |
| Government | |
| • Mayor | Jorge Luis Cardoso |
| Area | |
• Total | 2,513.60 km2 (970.51 sq mi) |
| Elevation | 22 m (72 ft) |
| Population (2020[1]) | |
• Total | 18,238 |
| • Density | 7.2557/km2 (18.792/sq mi) |
| Website | Official website |
Arroio Grande (Portuguese meaning the big stream) is a Brazilianmunicipality in the southern part of the state ofRio Grande do Sul. The population is 18,238 (2020 est.) in an area of 2,513.60 km2 (970.51 sq mi).[2] Its second industry is agriculture which was primary until the 1970s, it currently has more urban population (80%) than rural (20%). Much of the area is made up of plains.
The settlement was founded in 1803, around eighteen years before independence byManuel Jerônimo de Sousa, who wasBaron of Mauá's grandfather. In the right bank, the Ferreira family halted the construction, on the right bank, the sons of Manuel de Sousa Gusmão constructed secretly a ranch.
Under law 54 of May 26, 1846, it was lifted to a parish as Nossa Senhora da Graça de Arroio Grande. Under law 596 on January 2, 1867, the municipality ofJaguarão was divided into five districts, one of which was Arroio Grande.
Under the provincial law 843 on March 24, 1873, it became a town with a same name. Under law 590 on November 5, 1890, it became a city with the nameFederação, but on July 6, 1891, under law 522, it was renamed to Arroio Grande.
In 1959, the municipality lost part of its area which became the new municipality ofPedro Osório.
All streams empty intoLagoa Mirim.
Arroio Grande has one of the coolest climate in Brazil, its climate issubtropical, its medium annual temperature is 17.5 °C.

Its main agricultural products arerice,soy,wheat,corn and a few more, cattle includesbovines andovine.
| Product | Tons |
|---|---|
| Rice (in bags) | 216,000 |
| Soy | 22,907 |
| Wheat | 2,700 |
| Corn | 2,400 |
Data:IBGE/2004
Arroio Grande is connected with the national roadBR-116, one of the main roads ofMercosul, and additionally the state roads RS-602 and RS-473.