San Antonio Department, Río Negro

{{Infobox settlement

| name = San Antonio

| native_name = Departamento San Antonio

| native_name_lang =

| settlement_type = Department

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| image_map = San Antonio (Provincia de Río Negro - Argentina).svg

| map_alt =

| map_caption = Location of San Antonio within Río Negro

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| subdivision_type = Country

| subdivision_name = Argentina

| subdivision_type1 = Province

| subdivision_name1 = Río Negro

| subdivision_type2 =

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| established_title = Established

| established_date =

| founder =

| seat_type = Capital

| seat = San Antonio Oeste

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| leader_party =

| leader_title = Mayor

| leader_name =

| unit_pref = Metric

| area_footnotes =

| area_total_km2 = 14015

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| population_footnotes =

| population_total = 29284

| population_as_of = 2010

| population_density_km2 = auto

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| postal_code_type = Postal Code

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| area_code_type = Area Code

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}}

San Antonio is a department of the province of Río Negro (Argentina).{{cite web|url=https://www.citypopulation.de/php/argentina-admin.php|title=Argentina: Administrative Division|publisher=citypopulation}}{{Cite book|url=http://microdata.worldbank.org/index.php/catalog/441/download/13645|title=CENTRO LATINOAMERICANO Y CARIBEÑO DE DEMOGRAFÍA (CELADE)|publisher=World Bank|year=1970}}