Fronteiras

{{Infobox settlement

| official_name = Fronteiras | other_name = | native_name = | nickname = | settlement_type = Municipality | motto = | image_skyline = | imagesize = | image_caption = | image_flag = Bandeira de Fronteiras.png | flag_size = | image_seal = Brasao Fronteiras Piauí Brasil.jpg | seal_size = | image_map = Piaui Municip Fronteiras.svg | mapsize = | map_caption = | pushpin_map = | pushpin_label_position = bottom | pushpin_map_caption = Location in Brazil | subdivision_type = Country | subdivision_name = | subdivision_type1 = Region | subdivision_name1 = Nordeste | subdivision_type2 = State | subdivision_name2 = Piauí | subdivision_type3 = Mesoregion | subdivision_name3 = Sudeste Piauiense | subdivision_type4 = | subdivision_name4 = | government_footnotes = | government_type = | leader_title = | leader_name = | established_title = | established_date = | area_magnitude = | unit_pref = Imperial | area_footnotes = | area_total_km2 = | area_land_km2 = | population_as_of = 2020 | population_footnotes = | population_note = | population_total = 11,659 | population_density_km2 = | timezone = BRT | utc_offset = &minus;3 | timezone_DST = | utc_offset_DST = | coordinates = | elevation_footnotes = <!--for references: use