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Lake Sempach

lake in Switzerland
LakeBodyOfWater Lake Q14459

Facts

14 properties

Identity

Instance of
lake, area not part of a municipality of Switzerland[4]
Official name
Sempachersee[12]

Location

Country
Switzerland[3]
Coordinate location
🗺️ 47.150°, 8.150°[11]
Located in the administrative territorial entity
Canton of Lucerne[2]

Population and size

Area
+14.5, +14.4[14][15]
Elevation above sea level
+504[13]
More facts +7
Basin country
Switzerland[10]
Drainage basin
Rhine basin[18]
Inflows
Große Aa (Ems), Kleine Aa (Sempachersee), Big Aa[6][7][8]
Named after
Sempach[5]
Outflows
Suhre[9]
Vertical depth
+87[17]
Volume as quantity
+660[16]
🏷️ Also known as
en Lake Sempach en Sempachersee es Sempach fa دریاچه زمپاخ fr lac de Sempach he אגם סמפאך it lago di Sempach ja ゼンパハ湖 ko 젬파흐 호수 nl Meer van Sempach pt Lago Sempach ru Земпахское озеро tr Sempach Gölü uk Земпахське озеро zh 森帕赫湖
🔖 Identifiers · 11
VIAF cluster ID
244551005
GND ID
4077366-8
Image (Wikimedia Commons)
Aerial image of Lake Sempach (view from the south).jpg ↗
FactGrid item ID
N. B. Willey
Freebase ID
/m/0fmthn
GNS Unique Feature ID
-2554193
GeoNames ID
2658630
HDS ID
008665
OpenStreetMap relation ID
2625908
SPAP ID
p/45650a57-03bb-4781-a057-74be946cb6a7
Swiss municipality code
9163
📚 Sources · 1
  • GeoNames as of 2026-09-26 · 1 statement · CC BY 4.0 CC BY 4.0 — attribution: GeoNames (www.geonames.org), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Values as shipped.

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⛏️ Lake Facts · open-dataset statements via 4ort-mint

From open datasets, joined by identifier and shown only for properties Wikidata does not state on this entity — except where the dataset is the registry authority for the fact (ClinicalTrials.gov on trial registration data): there its value is shown instead, with Wikidata's noted beside it. Every row carries its dataset edition and licence.

Located in time zoneP421
Europe/Zurich 2026-09-26 H/LK · CH GeoNames (CC BY 4.0) as of 2026-09-26
where from?
Source
GeoNames
Edition
20260926 · as of 2026-09-26
Licence
CC BY 4.0
Credit
CC BY 4.0 — attribution: GeoNames (www.geonames.org), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Values as shipped.
Bronze
1da92a6323a5fec3… admin1CodesASCII.txt +9 files
Transform
4ort-mint · lake · version not recorded
CC BY 4.0 — attribution: GeoNames (www.geonames.org), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Values as shipped.
🔗 Connections
← Located in or next to body of water 7
Sursee, Sempach, Nottwil, Neuenkirch, Oberkirch, Schenkon, Eich
Basin country 1
Switzerland
Country 1
Switzerland
Drainage basin 1
Rhine basin
FactGrid item ID 1
N. B. Willey
Inflows 1
Große Aa (Ems)
Instance of 1
lake
Located in the administrative territorial entity 1
Canton of Lucerne
Named after 1
Sursee
Named after 1
Sempach
Outflows 1
Suhre
← Lake on watercourse 1
Suhre
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Summary

Lake Sempach is a lake[1].

Body

Cultural Significance

Things named for Lake Sempach include Sursee[19], a Municipality of Switzerland[20], in Switzerland[21].

Why It Matters

Entities named for it include Sursee[19], a Municipality of Switzerland[20], in Switzerland[21].

Related Entities

Switzerland

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [2] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . wikidata.org.
  10. [11] ↑ . wikidata.org.
  11. [12] ↑ . swissNAMES3D. Retrieved . wikidata.org.
  12. [13] ↑ . swissNAMES3D. Retrieved . wikidata.org.
  13. [14] ↑ . wikidata.org.
  14. [15] ↑ . bfs.admin.ch. Retrieved . bfs.admin.ch. Provenance: wikidata.org.
  15. [16] ↑ . wikidata.org.
  16. [17] ↑ . wikidata.org.
  17. [18] ↑ . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [19] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [20] ↑ . Wikidata. wikidata.org. → on this site
  2. [21] ↑ . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Lake Sempach. Retrieved November 6, 2026, from https://4ort.xyz/entity/lake-sempach
MLA “Lake Sempach.” 4ort.xyz Knowledge Graph, 4ort.xyz, 6 Nov. 2026, https://4ort.xyz/entity/lake-sempach.
BibTeX @misc{4ortxyz_lake-sempach_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Lake Sempach}}, year = {2026}, url = {https://4ort.xyz/entity/lake-sempach}, note = {Accessed: 2026-11-06}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Lake Sempach — https://4ort.xyz/entity/lake-sempach (retrieved 2026-11-06)

Canonical URL: https://4ort.xyz/entity/lake-sempach · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 4w ago · OKA bot bot · 2026-10-08 view diff on Wikidata ↗
    Located in the administrative territorial entity → Canton of Lucerne
    Outflows → Suhre
    Instance of → lake, area not part of a municipality of Switzerland
    Official name → {'lang': 'de', 'text': 'Sempachersee'}
    + 10 other properties edited (see Wikidata diff for full list)
    "source for height, official name from swisstopo data (swisstopo task)"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.