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Mercer County

county in New Jersey, United States
Organization county_of_new_jersey Q496886
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Summary

Mercer County is a county of New Jersey[1]. It draws 1,135 Wikipedia views per month (county of new jersey category, ranking #9 of 21).[2]

Key Facts

  • Located in the administrative territorial entity: New Jersey[3]
  • Country: United States[4]
  • Located in or next to body of water: Delaware River[5], Millstone River[6]
  • Capital: Trenton[7]
  • Shares border with: Somerset County[8], Middlesex County[9], Monmouth County[10], Burlington County[11], Bucks County[12], Hunterdon County[13]
  • Named after: Hugh Mercer[14]
  • Contains the administrative territorial entity: Trenton[15], Hamilton Township[16], Robbinsville Township[17], East Windsor Township[18], Hightstown[19], West Windsor Township[20], Princeton[21], Lawrence Township[22], Ewing Township[23], Hopewell Township[24], Hopewell[25], Pennington[26]
  • Commons category: Mercer County, New Jersey[27]
  • Inception: 1838[28]
  • Coordinate location: 40.28, -74.7[29]
  • Official website: http://www.mercercounty.org/[30]
  • Topic's main category: Category:Mercer County, New Jersey[31]
  • Population: 366,513[32], 368,024[33], 367,812[34], 368,832[35], 370,414[36], 371,398[37], 387,340[38]
  • Topic has template: Template:Mercer County, New Jersey[39]
  • List of monuments: National Register of Historic Places listings in Mercer County, New Jersey[40]
  • Category for people born here: Category:Births in Mercer County, New Jersey[41]
  • Category for people who died here: Category:Deaths in Mercer County, New Jersey[42]
  • Number of households: 131,440[43]
  • Native label: Mercer County[44]
  • NCI Thesaurus ID: C109472[45]
  • Category of associated people: Category:People from Mercer County, New Jersey[46]
  • Different from: Mercer County[47]
  • Elevation above sea level: 16[48]
  • Area: 593[49]
  • Water as percent of area: 1.89[50]

Why It Matters

Mercer County has Wikipedia articles in 24 language editions, a strong signal of global cultural recognition.[51] It is known by 36 alternative names across languages and contexts.[52]

Related Entities

Delaware River New Jersey Real Central New Jersey United States

References

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

Direct Wikidata claims

  1. [4] ↑ . wikidata.org.
  2. [7] ↑ . wikidata.org.
  3. [8] ↑ . wikidata.org.
  4. [9] ↑ . wikidata.org.
  5. [10] ↑ . wikidata.org.
  6. [11] ↑ . wikidata.org.
  7. [12] ↑ . wikidata.org.
  8. [13] ↑ . wikidata.org.
  9. [3] ↑ . wikidata.org.
  10. [14] ↑ . wikidata.org.
  11. [15] ↑ . wikidata.org.
  12. [16] ↑ . wikidata.org.
  13. [17] ↑ . wikidata.org.
  14. [18] ↑ . wikidata.org.
  15. [19] ↑ . wikidata.org.
  16. [20] ↑ . wikidata.org.
  17. [21] ↑ . wikidata.org.
  18. [22] ↑ . wikidata.org.
  19. [23] ↑ . wikidata.org.
  20. [24] ↑ . wikidata.org.
  21. [25] ↑ . wikidata.org.
  22. [26] ↑ . wikidata.org.
  23. [5] ↑ . wikidata.org.
  24. [6] ↑ . wikidata.org.
  25. [27] ↑ . wikidata.org.
  26. [28] ↑ . wikidata.org.
  27. [29] ↑ . wikidata.org.
  28. [30] ↑ . wikidata.org.
  29. [31] ↑ . wikidata.org.
  30. [32] ↑ . wikidata.org.
  31. [33] ↑ . wikidata.org.
  32. [34] ↑ . wikidata.org.
  33. [35] ↑ . wikidata.org.
  34. [36] ↑ . wikidata.org.
  35. [37] ↑ . wikidata.org.
  36. [38] ↑ . wikidata.org.
  37. [39] ↑ . wikidata.org.
  38. [40] ↑ . wikidata.org.
  39. [41] ↑ . wikidata.org.
  40. [42] ↑ . wikidata.org.
  41. [43] ↑ . wikidata.org.
  42. [44] ↑ . wikidata.org.
  43. [45] ↑ . wikidata.org.
  44. [46] ↑ . wikidata.org.
  45. [47] ↑ . wikidata.org.
  46. [48] ↑ . wikidata.org.
  47. [49] ↑ . wikidata.org.
  48. [50] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [51] ↑ . Wikidata sitelinks. wikidata.org.
  3. [52] ↑ . Wikidata aliases. 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). Mercer County. Retrieved October 16, 2026, from https://4ort.xyz/entity/mercer-county
MLA “Mercer County.” 4ort.xyz Knowledge Graph, 4ort.xyz, 16 Oct. 2026, https://4ort.xyz/entity/mercer-county.
BibTeX @misc{4ortxyz_mercer-county_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Mercer County}}, year = {2026}, url = {https://4ort.xyz/entity/mercer-county}, note = {Accessed: 2026-10-16}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Mercer County — https://4ort.xyz/entity/mercer-county (retrieved 2026-10-16)

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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. 6w ago · Theklan · 2026-09-04 view diff on Wikidata ↗
    Located in time zone → —
    P14687 → Data:US presidential elections by county/Mercer County, New
    "/* wbsetclaim-create:2||1 */ P14687: Data:US presidential elections by county/Mercer County, New Jersey.tab, Link US presidential election dataset (P14687, subject: United States presiden"
  2. 22w ago · Mahir256 · 2026-05-13 view diff on Wikidata ↗
    Located in → —
    Capital → Trenton
    Country → United States
    List of monuments → National Register of Historic Places listings in Mercer County, New Jersey
    + 36 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/31546|batch #31546]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.