Olmsted County

E155618

administrative territorial entity county

Olmsted County is a county in southeastern Minnesota best known for encompassing the city of Rochester, home to the Mayo Clinic.

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All labels observed (3)

Label	Occurrences
Olmsted County, Minnesota	16
Olmsted County canonical	3
Olmsted County metropolitan area	1

How this entity was disambiguated

This entity first appeared as the object of triple T1357775 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Olmsted County
Context triple: [Rochester, Minnesota, county, Olmsted County]

A. Hennepin County
Hennepin County is a populous county in Minnesota that includes Minneapolis and serves as a major economic, cultural, and administrative center for the region.
B. Rice County, Minnesota
Rice County, Minnesota is a predominantly rural county in southeastern Minnesota known for its historic towns like Northfield and Faribault and as home to liberal arts institutions such as Carleton College.
C. St. Louis County, Minnesota
St. Louis County, Minnesota is a large county in northeastern Minnesota known for encompassing the city of Duluth and much of the state’s Iron Range and Boundary Waters wilderness.
D. Rock County, Minnesota
Rock County, Minnesota is a rural county in the southwestern corner of Minnesota known for its agricultural landscape and small communities such as its county seat, Luverne.
E. Fillmore County, Minnesota
Fillmore County, Minnesota is a predominantly rural county in southeastern Minnesota known for its rolling farmland, karst topography, and small historic towns such as Preston and Lanesboro.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Olmsted County
Target entity description: Olmsted County is a county in southeastern Minnesota best known for encompassing the city of Rochester, home to the Mayo Clinic.

A. Hennepin County
Hennepin County is a populous county in Minnesota that includes Minneapolis and serves as a major economic, cultural, and administrative center for the region.
B. Rice County, Minnesota
Rice County, Minnesota is a predominantly rural county in southeastern Minnesota known for its historic towns like Northfield and Faribault and as home to liberal arts institutions such as Carleton College.
C. St. Louis County, Minnesota
St. Louis County, Minnesota is a large county in northeastern Minnesota known for encompassing the city of Duluth and much of the state’s Iron Range and Boundary Waters wilderness.
D. Rock County, Minnesota
Rock County, Minnesota is a rural county in the southwestern corner of Minnesota known for its agricultural landscape and small communities such as its county seat, Luverne.
E. Fillmore County, Minnesota
Fillmore County, Minnesota is a predominantly rural county in southeastern Minnesota known for its rolling farmland, karst topography, and small historic towns such as Preston and Lanesboro.
F. None of above. chosen

Statements (49)

Predicate	Object
instanceOf	administrative territorial entity ⓘ county ⓘ
borderedBy	Dodge County, Minnesota ⓘ Fillmore County, Minnesota ⓘ Goodhue County, Minnesota ⓘ Mower County, Minnesota ⓘ Rice County, Minnesota ⓘ Wabasha County, Minnesota ⓘ Winona County, Minnesota ⓘ
capital	Rochester, Minnesota, United States ⓘ surface form: Rochester, Minnesota
contains	Byron, Minnesota ⓘ Cascade Township, Minnesota ⓘ Chatfield, Minnesota ⓘ Dover, Minnesota ⓘ Eyota, Minnesota ⓘ Haverhill Township, Minnesota ⓘ High Forest Township, Minnesota ⓘ Kalmar Township, Minnesota ⓘ Marion Township, Minnesota ⓘ Oronoco, Minnesota ⓘ Rochester Township, Minnesota ⓘ Rochester, Minnesota, United States ⓘ surface form: Rochester, Minnesota Stewartville, Minnesota ⓘ Viola, Minnesota ⓘ
country	United States of America ⓘ
countrySubdivisionCode	US-MN ⓘ
daylightSavingTimeZone	Central Time Zone ⓘ surface form: Central Daylight Time
FIPSCode	27109 ⓘ
GNISID	00659440 ⓘ
hasAirport	Rochester International Airport ⓘ
hasHigherEducationInstitution	Rochester Community and Technical College ⓘ University of Minnesota Rochester ⓘ
hasMajorCity	Rochester, Minnesota, United States ⓘ surface form: Rochester, Minnesota
hasMajorHighway	Interstate 90 ⓘ Minnesota State Highway 247 ⓘ Minnesota State Highway 30 ⓘ Minnesota State Highway 42 ⓘ U.S. Route 14 NERFINISHED ⓘ U.S. Route 52 NERFINISHED ⓘ
hasMajorHospital	Mayo Clinic ⓘ surface form: Mayo Clinic, Rochester
knownFor	being home to the city of Rochester ⓘ proximity to Mayo Clinic headquarters in Rochester ⓘ
locatedIn	Midwestern United States ⓘ Minnesota ⓘ Midwestern United States ⓘ surface form: Upper Midwest Southeastern Minnesota ⓘ surface form: southeastern Minnesota
namedAfter	David Olmsted ⓘ
partOf	Minnesota ⓘ surface form: State of Minnesota
timeZone	Central Time Zone ⓘ

How these facts were elicited

Referenced by (20)

Full triples — surface form annotated when it differs from this entity's canonical label.

Rochester, Minnesota, United States → county → Olmsted County ⓘ

subject surface form: Rochester, Minnesota

Fillmore County, Minnesota → borders → Olmsted County ⓘ