South San Francisco

city in San Mateo County, California, United States
Place city_of_california Q927122
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Summary

South San Francisco is a city of California[1].

Key Facts

  • Member of: Association of Bay Area Governments[2], GovAI Coalition[3]
  • Located in the administrative territorial entity: San Mateo County[4]
  • Country: United States[5]
  • Twinned administrative body: Lucca[6]
  • Postal code: 94080[7], 94083[8]
  • Local dialing code: 650[9]
  • Inception: September 19, 1908[10]
  • Official website: http://www.ssf.net[11]
  • Population: 60,552[12], 54,312[13], 63,632[14], 66,105[15]
  • Office held by head of government: Mayor of South San Francisco, California[16]
  • Official name: South San Francisco[17]
  • Number of households: 21,388[18]
  • Different from: South San Francisco[19]
  • Elevation above sea level: 16 feet[20]
  • Area: 78.204956 km²[21], 78.109408 km²[22]
  • Water as percent of area: 69.6908 percent[23]
  • Located in the statistical territorial entity: San Francisco Bay Area[24]
  • Water area: 54.435052 km²[25]
  • Per capita income: 47,079 US dollars[26]

Body

Cultural Significance

Things named for South San Francisco include it station[27], an underground railway station[28], in United States[29].

Why It Matters

Entities named for it include it station[27], an underground railway station[28], in United States[29].

References

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

Direct Wikidata claims

  1. [5] ↑ . archINFORM. Retrieved . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [6] ↑ . wikidata.org.
  4. [7] ↑ . wikidata.org.
  5. [8] ↑ . wikidata.org.
  6. [2] ↑ . wikidata.org.
  7. [3] ↑ . sanjoseca.gov. Retrieved . sanjoseca.gov. Provenance: wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . wikidata.org.
  10. [11] ↑ . wikidata.org.
  11. [12] ↑ . wikidata.org.
  12. [13] ↑ . wikidata.org.
  13. [14] ↑ . 2010 United States Census. Retrieved . census.gov. Provenance: wikidata.org.
  14. [15] ↑ . 2020 United States Census. Retrieved . data.census.gov. Provenance: wikidata.org.
  15. [16] ↑ . wikidata.org.
  16. [17] ↑ . wikidata.org.
  17. [18] ↑ . 2016–2020 American Community Survey. Retrieved . data.census.gov. Provenance: wikidata.org.
  18. [19] ↑ . wikidata.org.
  19. [20] ↑ . wikidata.org.
  20. [21] ↑ . 2016 U.S. Gazetteer Files. wikidata.org.
  21. [22] ↑ . 2010 United States Census. Retrieved . census.gov. Provenance: wikidata.org.
  22. [23] ↑ . 2010 United States Census. Retrieved . census.gov. Provenance: wikidata.org.
  23. [24] ↑ . wikidata.org.
  24. [25] ↑ . 2010 United States Census. Retrieved . wikidata.org.
  25. [26] ↑ . 2016–2020 American Community Survey. Retrieved . data.census.gov. Provenance: wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [27] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [28] ↑ . Wikidata. wikidata.org. → on this site
  2. [29] ↑ . 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). South San Francisco. Retrieved November 1, 2026, from https://4ort.xyz/entity/south-san-francisco
MLA “South San Francisco.” 4ort.xyz Knowledge Graph, 4ort.xyz, 1 Nov. 2026, https://4ort.xyz/entity/south-san-francisco.
BibTeX @misc{4ortxyz_south-san-francisco_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{South San Francisco}}, year = {2026}, url = {https://4ort.xyz/entity/south-san-francisco}, note = {Accessed: 2026-11-01}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): South San Francisco — https://4ort.xyz/entity/south-san-francisco (retrieved 2026-11-01)

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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. 27d ago · BrokenSegue · 2026-10-05 view diff on Wikidata ↗
    Seal image → Seal of South San Francisco, California.png
    Wikipedia languages → ['ar', 'arz', 'azb', 'bg', 'ca', 'ce', 'ceb', 'dag', 'de', 'en', 'eo', 'es', 'eu
    Claims rich → —
    "/* wbsetclaim-create:2||1 */ Seal image: Seal of South San Francisco, California.png"
  2. 11w ago · RVA2869 · 2026-08-11 view diff on Wikidata ↗
    Located in time zone → —
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/46713|batch #46713]]: redundant value, already present at higher administrative level"
  3. 22w ago · Mxn · 2026-05-24 view diff on Wikidata ↗
    Per capita income → {'unit': 'Q4917', 'amount': '+47079'}
    Member of → Association of Bay Area Governments, GovAI Coalition
    Located in the statistical territorial entity → San Francisco Bay Area
    Instance of → city of California
    + 26 other properties edited (see Wikidata diff for full list)
    "/* wbcreateclaim-create:1| */ Member of: GovAI Coalition, [[:toollabs:quickstatements/#/batch/258464|batch #258464]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.