Valparaíso (historical province)
administrative divisions of Chile that existed between 1842 and 1976

The Valparaíso Province was one of the administrative divisions of Chile that existed between 1842 and 1976.
History
It was created by a law of October 27, 1842, with three departments (Valparaíso, Casablanca, and Quillota). This law separated the Quillota Department from the Aconcagua Province, as well as the Valparaíso Department and Casablanca Department from the Santiago Province. Its capital was the city of the same name.
By 1856 the departments were as follows:
In 1925 the departments were as follows:
On December 30, 1927, Decree with Force of Law (DFL) 8582 abolished the province of Valparaíso, which became part of the new Aconcagua Province. The departments of Limache and Casablanca were also abolished.
According to DFL 8582:
"Article 1. The country is divided into the following provinces, departments and territories: (...)
PROVINCE OF ACONCAGUA.–Capital: Valparaíso.–Departments: Petorca, San Felipe, Andes, Quillota and Valparaíso; (...)
Article 2. The departments shall have the boundaries fixed by decree-law number 354 of March 17, 1925, and their current capitals, with the following modifications, in addition to those indicated above: (...)
The Quillota Department shall comprise the territory of the former department of the same name, and the part of the former subdelegation 6th Montenegro, of the current Los Andes Department, that lies north of the ridgeline bordering to the south the watershed of the Aconcagua River;
The Valparaíso Department shall comprise the territory of the former Limache, Valparaíso and Casablanca departments, and the part of the former subdelegation 5th Lepe, of the current Melipilla Department, that lies north of the ridgeline between Cerro del Roble Alto and Cerro de Las Cardas, passing through Alto de Carén, Cerro de Los Morros and Paso de los Padrones over the Puangue Stream; (...)."
Later, in 1936, the province of Valparaíso was reestablished with the following departments:
Subsequently, the Easter Island Department was created, establishing the province of Valparaíso as follows:
During the 1970s, a new change occurred in the political-administrative division of the country with the creation of regions.
In 1976, the Valparaíso Region was created from the former provinces of Valparaíso and Aconcagua Province, as well as the San Antonio Department of the Santiago Province.
This brief starts where responsible research should: with the source description of “Valparaíso (historical province)” as administrative divisions of Chile that existed between 1842 and 1976. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the general reference register because the source frames it as administrative divisions of Chile that existed between 1842 and 1976. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 21, 2026. The linked authority identifier is Q17621228. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1842, 1976, 1856 and 1925.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Valparaíso (historical province)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.