Castro Barros Department

{{Infobox settlement

| name = Castro Barros

| native_name = Departamento Castro Barros

| native_name_lang =

| settlement_type = Department

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| subdivision_type = Country

| subdivision_name = Argentina

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| established_title = Established

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| seat_type = Seat

| seat = Aminga

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| leader_title = Mayor

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| unit_pref = Metric

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| 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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Castro Barros is a department of the province of La Rioja (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}}