# List of provincial legislatures in Argentina

The provincial legislatures of Argentina are the organs of the legislative power of each province. There are provinces with a chamber of deputies and senate, and others with a unicameral system. The total number of provincial legislators in Argentina is 1199.
Each province has the autonomy to decide the date of the provincial elections.

## Composition by province

| Province | Legislature | Legislature | Level | Seats | Term (years) | Renewal | Electoral system | Constituency |
| Buenos Aires Province | Legislature | Chamber of Deputies | Lower | 92 | 4 | Half every 2 years | Proportional representation | Electoral sections |
| Buenos Aires Province | Legislature | Senate | Upper | 46 | 4 | Half every 2 years | Proportional representation | Electoral sections |
| Buenos Aires | Legislature | Legislature | Unicameral | 60 | 4 | Half every 2 years | Proportional representation | City |
| Catamarca | Legislature | Chamber of Deputies | Lower | 41 | 4 | Half every 2 years | Proportional representation | Province |
| Catamarca | Legislature | Senate | Upper | 16 | 4 | Half every 2 years | First-past-the-post voting | Departments |
| Chaco | Chamber of Deputies | Chamber of Deputies | Unicameral | 32 | 4 | Half every 2 years | Proportional representation | Province |
| Chubut | Legislature | Legislature | Unicameral | 27 | 4 | Complete | 16: Majority bonus system 11: Proportional representation | Province |
| Córdoba | Legislature | Legislature | Unicameral | 70 | 4 | Complete | Parallel voting: | Parallel voting: | Parallel voting: |
| Córdoba | Legislature | Legislature | Unicameral | 70 | 4 | Complete | 44: Proportional representation | Province |
| Córdoba | Legislature | Legislature | Unicameral | 70 | 4 | Complete | 26: First-past-the-post voting | Departments |
| Corrientes | Legislature | Chamber of Deputies | Lower | 30 | 4 | Half every 2 years | Proportional representation | Province |
| Corrientes | Legislature | Senate | Upper | 15 | 6 | A third every 2 years | Proportional representation | Province |
| Entre Ríos | Legislature | Chamber of Deputies | Lower | 34 | 4 | Complete | 18: Majority bonus system 16: Proportional representation | Province |
| Entre Ríos | Legislature | Senate | Upper | 17 | 4 | Complete | First-past-the-post voting | Departments |
| Formosa | Chamber of Deputies | Chamber of Deputies | Unicameral | 30 | 4 | Half every 2 years | Incomplete list. 2⁄3 of seats for top party, 1⁄3 of seats for second most voted party | Province |
| Jujuy | Legislature | Legislature | Unicameral | 48 | 4 | Half every 2 years | Proportional representation | Province |
| La Pampa | Chamber of Deputies | Chamber of Deputies | Unicameral | 30 | 4 | Complete | Proportional representation | Province |
| La Rioja | Legislature | Legislature | Unicameral | 36 | 4 | Half every 2 years | 24: Proportional representation | Departments |
| La Rioja | Legislature | Legislature | Unicameral | 36 | 4 | Half every 2 years | 12: First-past-the-post voting | Departments |
| Mendoza | Legislature | Chamber of Deputies | Lower | 48 | 4 | Half every 2 years | Proportional representation | Electoral districts |
| Mendoza | Legislature | Senate | Upper | 38 | 4 | Half every 2 years | Proportional representation | Electoral districts |
| Misiones | Chamber of Representatives | Chamber of Representatives | Unicameral | 40 | 4 | Half every 2 years | Proportional representation | Province |
| Neuquén | Legislature | Legislature | Unicameral | 35 | 4 | Complete | Proportional representation | Province |
| Río Negro | Legislature | Legislature | Unicameral | 46 | 4 | Complete | Parallel voting: | Parallel voting: |
| Río Negro | Legislature | Legislature | Unicameral | 46 | 4 | Complete | 22: Proportional representation | Province |
| Río Negro | Legislature | Legislature | Unicameral | 46 | 4 | Complete | 24: Proportional representation | Electoral circuits |
| Salta | Legislature | Chamber of Deputies | Lower | 60 | 4 | Half every 2 years | 47: Proportional representation | Departments |
| Salta | Legislature | Chamber of Deputies | Lower | 60 | 4 | Half every 2 years | 13: First-past-the-post voting | Departments |
| Salta | Legislature | Senate | Upper | 23 | 4 | Half every 2 years | First-past-the-post voting | Departments |
| San Juan | Chamber of Deputies | Chamber of Deputies | Unicameral | 36 | 4 | Complete | Parallel voting: | Parallel voting: |
| San Juan | Chamber of Deputies | Chamber of Deputies | Unicameral | 36 | 4 | Complete | 17: Proportional representation | Province |
| San Juan | Chamber of Deputies | Chamber of Deputies | Unicameral | 36 | 4 | Complete | 19: First-past-the-post voting | Departments |
| San Luis | Legislature | Chamber of Deputies | Lower | 43 | 4 | Half every 2 years | Proportional representation | Departments |
| San Luis | Legislature | Senate | Upper | 9 | 4 | Half every 2 years | First-past-the-post voting | Departments |
| Santa Cruz | Chamber of Deputies | Chamber of Deputies | Unicameral | 24 | 4 | Complete | Parallel voting: | Parallel voting: |
| Santa Cruz | Chamber of Deputies | Chamber of Deputies | Unicameral | 24 | 4 | Complete | 10: Proportional representation | Province |
| Santa Cruz | Chamber of Deputies | Chamber of Deputies | Unicameral | 24 | 4 | Complete | 14: First-past-the-post voting | Municipalities |
| Santa Fe | Legislature | Chamber of Deputies | Lower | 50 | 4 | Complete | 28: Majority bonus system 22: Proportional representation | Province |
| Santa Fe | Legislature | Senate | Upper | 19 | 4 | Complete | First-past-the-post voting | Departments |
| Santiago del Estero | Chamber of Deputies | Chamber of Deputies | Unicameral | 40 | 4 | Complete | Proportional representation | Province |
| Tierra del Fuego | Legislature | Legislature | Unicameral | 15 | 4 | Complete | Proportional representation | Province |
| Tucumán | Legislature | Legislature | Unicameral | 49 | 4 | Complete | Proportional representation | Electoral sections |