History of San Bernardino
From the 1881 German colony to the lake city: sourced facts, visitable heritage and what the name Ypacaraí means.
1881
Colony founded
August 24 — date commemorated by the municipality.
1888
Hotel del Lago
Landmark of early lakeside tourism.
12.216
Residents (2022)
INE Paraguay census.
1945
Club Náutico
Former Club Alemán, renamed on 9 December 1945.
Origins
A German colony by the lake
San Bernardino was founded on 24 August 1881 by German and Swiss immigrants, amid Paraguay’s repopulation policies after the Triple Alliance War. The colony was named in honor of President General Bernardino Caballero.
Among figures tied to the colony’s early administration is Swiss-German Santiago (Otto) Schaerer. The town first grew as an agricultural settlement and, still in the 19th century, became a summer retreat for Asunción’s elite.
Dated milestones
We only include dates we can cross-check with public sources. Where uncertain, we say so.
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1881
Colony founded
August 24. Arrival of the first German and Swiss settlers; the place takes Bernardino Caballero’s name.
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1888
Hotel del Lago
Hotel del Lago is built, an early symbol of lakeside tourism. It remains one of the city’s most recognizable historic buildings.
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1890s–1930s
Emil Hassler and the historic houses
Swiss botanist Emil Hassler is tied to the town; Casa Hassler now operates as a municipal museum and cultural center. Other period houses (such as Casa Büttner / tourism experience center) preserve the colony’s memory.
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1945
From Club Alemán to Club Náutico
The former Club Alemán is renamed Club Náutico de San Bernardino (9 December 1945), in the postwar context.
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2022
Current population
INE’s 2022 National Population and Housing Census counts 12,216 residents in San Bernardino district.
The lake and the name Ypacaraí
Ypacaraí is a natural tectonic lake — not an artificial reservoir. San Bernardino grew on its eastern shore and the lake shaped the city’s identity as a summer destination.
In Guaraní, “Ypacaraí” is often translated as “blessed water/lake” (ypa + karaí). Folk etymologies also exist (“¿ypa karaí?” — “is it the water, sir?”). Tradition links the blessing of the waters to Fray Luis de Bolaños: oral lore, not an administrative record.
Important: the lake is not suitable for bathing
MADES has reiterated that the waters do not meet bathing standards. The shore, viewpoints and historic heritage remain the heart of a visit.
Heritage you can visit
Real local-guide places with historic or cultural value.
Tours
Templo San Bernardino de la Congregación Evangélica Alemana de Asunción
San Bernardino, Paraguai
Sources and further reading
- INE Paraguay — 2022 National Population and Housing Census (district population).
- MADES — Statements on Lake Ypacaraí water quality.
- ABC Color — Coverage of the 143rd founding anniversary (24 Aug 1881).
- Limnological literature (e.g. studies of Ypacaraí as a tectonic / graben lake) and CIH–Itaipú basin factsheets.