| La Unión | |
| Settlement Type: | Province |
| Subdivision Type: | Country |
| Subdivision Name: | Peru |
| Subdivision Type1: | Region |
| Subdivision Name1: | Arequipa |
| Established Title: | Founded |
| Seat Type: | Capital |
| Seat: | Cotahuasi |
| Leader Title: | Mayor |
| Area Total Km2: | 4746.4 |
| Elevation M: | 2388 |
| Population Total: | 15,662 |
| Population Density Km2: | auto |
| Blank Name Sec1: | UBIGEO |
| Blank Info Sec1: | 0408 |
| Website: | www.municotahuasi.gob.pe |
La Unión is a province of the Arequipa Region in Peru. Its seat is Cotahuasi.
The Huanzo mountain range traverses the province. One of the highest peaks of the province is Solimana at 6093m (19,990feet). Other mountains are listed below:[1]
The province is divided into eleven districts which are
The people in the province are mainly indigenous citizens of Quechua descent. Quechua is the language which the majority of the population (59.18%) learnt to speak in childhood, 40.06% of the residents started speaking using the Spanish language (2007 Peru Census).[2]