Hamilton County, Administrative county in southwestern Ohio, United States.
Hamilton County is an administrative division in southwestern Ohio, bordering Kentucky and Indiana. The area covers more than 400 square miles (approximately 1036 km²) and includes several cities and towns, among them Cincinnati.
The administrative structure was established in the early 19th century as settlements along the Ohio River began to organize. Over time, specialized departments for property records, courts, and municipal services developed.
County offices in downtown Cincinnati offer walk-in services where residents submit documents, register to vote, and consult property records. Staff members guide visitors through paperwork and answer questions about taxes, permits, and public records.
Public offices are open on weekdays, and many services are available through online platforms. Visitors should bring valid identification when submitting documents or requesting official certificates.
Each November, public administration buildings light up green for Operation Green Light, an initiative to honor military veterans. The illumination happens simultaneously across many towns and municipalities in the area.
Location: Ohio
Inception: January 2, 1790
Capital city: Cincinnati
Part of: Cincinnati metropolitan area
Shares border with: Butler County, Warren County, Clermont County, Boone County, Kenton County, Campbell County, Dearborn County, Franklin County
Website: https://hamilton-co.org
GPS coordinates: 39.20000,-84.54000
Latest update: December 5, 2025 16:36
Paycor Stadium
11.8 km
Creation Museum
24.5 km
Great American Ball Park
11.8 km
Nippert Stadium
7.9 km
Cincinnati Zoo and Botanical Garden
6.7 km
Riverfront Stadium
11.8 km
John A. Roebling Suspension Bridge
12.3 km
Heritage Bank Center
11.8 km
Carew Tower
11.3 km
Miami and Erie Canal
11.6 km
Fernald Feed Materials Production Center
17 km
Brent Spence Bridge
12.2 km
Cincinnati Gardens
7.6 km
Contemporary Arts Center
11.1 km
Chateau Laroche
25.4 km
National Underground Railroad Freedom Center
11.6 km
Cincinnati Music Hall
10.2 km
Newport Aquarium
12.3 km
Cincinnati Art Museum
10.3 km
Great American Tower at Queen City Square
11.5 km
Hard Rock Casino Cincinnati
10.7 km
St. Xavier High School
3.2 km
Brady Music Center
11.9 km
Fountain Square, Cincinnati
11.2 km
Tyler Davidson Fountain
11.2 km
William Henry Harrison Tomb State Memorial
19.1 km
Ingalls Building
11.4 km
Cathedral Basilica of the Assumption
13.8 kmReviews
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