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New Haven County

county in Connecticut, United States
AdministrativeArea county_of_connecticut Q54234

Facts

20 properties

Identity

Instance of
county of Connecticut
Inception
1666[16]
Native label
New Haven County[28]

Location

Country
United States[3]
Coordinate location
🗺️ 41.350°, -72.900°[17]
Located in the administrative territorial entity
Connecticut, Connecticut Colony[2]
⚖ sources disagree Wikidata Connecticut · Connecticut Colony GNIS (USGS) South Central Connecticut Planning Region edition 2026-09-26 · us-gov-usgs-pd ↗
Shares border with
Hartford County, Litchfield County, Fairfield County, Middlesex County, Suffolk County[5][6][7][8][9]

Population and size

Area
+2233[31]
Population
865k (859k–865k, n=7)[18][19][20][21][22][23][24]
More facts +11
Capital
New Haven[4]
Contains the administrative territorial entity
New Haven, Milford, Oxford, Middlebury, Madison Center[11][12][13][14][15]
Described by source
The American Cyclopædia[25]
Different from
New Haven[30]
List of monuments
National Register of Historic Places listings in New Haven County, Connecticut[26]
NCI Thesaurus ID
C108000[29]
Named after
New Haven Colony[10]
Number of households
+332765[27]
P14687
🗺️ View shape: US presidential elections by county/New Haven County, Connecticut[34]
Per capita income
+39134[33]
Water as percent of area
+29.9[32]
🏷️ Also known as
en New Haven County, Connecticut en New Haven County, CT en New Haven County ar مقاطعة نيو هيفن el κομητεία Νιου Χέιβεν es Condado de New Haven es Condado de New Haven (Connecticut) fa شهرستان نیو هاون، کنتیکت fi New Havenin piirikunta fr comté de New Haven he מחוז ניו הייבן hu New Haven megye it contea di New Haven ja ニュー・ヘイヴン・カウンティ ja ニュー・ヘイヴン郡 ko 뉴헤이븐군 pl Hrabstwo New Haven ro Comitatul New Haven ru Нью-Хейвен tr New Haven County
🔖 Identifiers · 36
VIAF cluster ID
125484327
Library of Congress authority ID
n80024418
GND ID
4451197-8
Image (Wikimedia Commons)
NewHavenCT Green.jpg ↗
ArchINFORM location ID
18497
Australian War Memorial ID
PL550752
BabelNet ID
03768499n
Ballotpedia ID
New_Haven_County,_Connecticut
Curlie ID
Regional/North_America/United_States/Connecticut/Counties/New_Haven/
Data Commons ID
geoId/09009
Encyclopædia Britannica Online ID
place/New-Haven-county-Connecticut
FAST ID
1207938
Show all 36 identifiers +24
FIPS 6-4 ID
09009
FactGrid item ID
Kateřina z Redernu
Freebase ID
/m/0m2hs
GADM ID
USA.7.5_1
GNIS Feature ID
212798
GeoNames ID
4839373
Getty Thesaurus of Geographic Names ID
1002712
HASC
US.CT.NH
INaturalist place ID
955
Museum-digital place ID
76210
MusicBrainz area ID
3b871247-7696-4ef1-8bee-80766f920b2c
National Library of Israel J9U ID
987007562081305171
OBO Gazetteer ID
00007514
OpenHistoricalMap relation ID
2791421
OpenStreetMap relation ID
276212
Our Campaigns container ID
2567
Quora topic ID
New-Haven-County-CT
Taxonomicon ID
1804649
Topic's main category
Category:New Haven County, Connecticut
UMLS CUI
C3828828
Who's on First ID
102086923
Wolfram Language entity code
Entity["AdministrativeDivision", {"NewHavenCounty", "Connecticut", "UnitedStates"}]
WorldCat Entities ID
E39QbtfRxTfJd9mRgJtQcvdtTB
Yale LUX ID
place/0f7662ab-35d1-4b90-ba96-66b3663cc512
📚 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.

Report an error or request removal Lineage (PROV-JSON)

⛏️ 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.

Elevation above sea levelP2044
35 m 2026-09-26 A/ADM2H · US 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
Contained subdivisions 40
New Haven, Waterbury, West Haven, Milford, Meriden, Derby, Ansonia, Cheshire +32 more
Contains the administrative territorial entity 5
New Haven, Milford, Oxford, Middlebury, Madison Center
Shares border with 5
Fairfield County, Middlesex County, Suffolk County, Hartford County, Litchfield County
← Shares border with 5
Fairfield County, Middlesex County, Suffolk County, Hartford County, Litchfield County
← Category combines topics 4
Category:People from New Haven County, Connecticut, Category:Populated places in New Haven County, Connecticut, Category:Births in New Haven County, Connecticut, Category:Towns in New Haven County, Connecticut
People who died here 3
Ella Wheeler Wilcox, Martin Shubik, Parker MacDonald
Located in the administrative territorial entity 2
Connecticut, Connecticut Colony
Capital 1
New Haven
Category for people born here 1
Category:Births in New Haven County, Connecticut
Category of associated people 1
Category:People from New Haven County, Connecticut
Country 1
United States
Different from 1
New Haven
Named after 1
New Haven Colony
People born here 1
Clarissa Munger Badger
Topic's main category 1
Category:New Haven County, Connecticut
← Capital of 1
New Haven
← Category's main topic 1
Category:New Haven County, Connecticut
← Contains the administrative territorial entity 1
Connecticut
← Digital Scriptorium Catalog item ID 1
Abu al-'Abbas Tha'lab
← Place served by transport hub 1
Bradley International Airport
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Summary

New Haven County is a county of Connecticut[1].

Related Entities

Bethany Connecticut United States

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. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [2] ↑ . wikidata.org.
  9. [10] ↑ . wikidata.org.
  10. [11] ↑ . wikidata.org.
  11. [12] ↑ . wikidata.org.
  12. [13] ↑ . wikidata.org.
  13. [14] ↑ . wikidata.org.
  14. [15] ↑ . wikidata.org.
  15. [16] ↑ . wikidata.org.
  16. [17] ↑ . wikidata.org.
  17. [18] ↑ . wikidata.org.
  18. [19] ↑ . wikidata.org.
  19. [20] ↑ . wikidata.org.
  20. [21] ↑ . wikidata.org.
  21. [22] ↑ . wikidata.org.
  22. [23] ↑ . wikidata.org.
  23. [24] ↑ . wikidata.org.
  24. [25] ↑ . wikidata.org.
  25. [26] ↑ . wikidata.org.
  26. [27] ↑ . wikidata.org.
  27. [28] ↑ . wikidata.org.
  28. [29] ↑ . wikidata.org.
  29. [30] ↑ . wikidata.org.
  30. [31] ↑ . wikidata.org.
  31. [32] ↑ . wikidata.org.
  32. [33] ↑ . wikidata.org.
  33. [34] ↑ . wikidata.org.

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). New Haven County. Retrieved November 4, 2026, from https://4ort.xyz/entity/new-haven-county
MLA “New Haven County.” 4ort.xyz Knowledge Graph, 4ort.xyz, 4 Nov. 2026, https://4ort.xyz/entity/new-haven-county.
BibTeX @misc{4ortxyz_new-haven-county_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{New Haven County}}, year = {2026}, url = {https://4ort.xyz/entity/new-haven-county}, note = {Accessed: 2026-11-04}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): New Haven County — https://4ort.xyz/entity/new-haven-county (retrieved 2026-11-04)

Canonical URL: https://4ort.xyz/entity/new-haven-county · 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. 8w ago · Theklan · 2026-09-04 view diff on Wikidata ↗
    P14687 → Data:US presidential elections by county/New Haven County, C
    "/* wbsetclaim-create:2||1 */ P14687: Data:US presidential elections by county/New Haven County, Connecticut.tab, Link US presidential election dataset (P14687, subject: United States pres"
  2. 25w ago · Mahir256 · 2026-05-13 view diff on Wikidata ↗
    OBO Gazetteer ID → 00007514
    UMLS CUI → C3828828
    Taxonomicon ID → 1804649
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/31546|batch #31546]]"
  3. 25w ago · Mahir256 · 2026-05-13 view diff on Wikidata ↗
    Aliases → —
    Area → {'amount': '+2233'}
    Coordinates → —
    Named after → —
    + 29 other properties edited (see Wikidata diff for full list)
    "/* wbcreateclaim-create:1| */ NCI Thesaurus ID: C108000, #quickstatements; #temporary_batch_1778695477825"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.