Welcome to Johnson County, USA
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JOHNSON
COUNTY
EST. 1856

Johnson CountyOfficial Government Website

Johnson County Courthouse

Serving Our Community Since 1856

Johnson County is committed to providing efficient, transparent, and responsive local government for all residents and businesses.

⚠ NOTICE: The County Assessor's Office will be closed March 12-13 for system upgrades. Online services remain available at all times.

Latest News & Announcements

March 6, 2026

County Board Approves $4.2M Infrastructure Plan for Rural Roads

The Johnson County Board of Commissioners unanimously approved funding for improvements to 14 miles of rural roadways, with construction set to begin this spring.

March 3, 2026

New Online Portal Launches for Building Permit Applications

Residents and contractors can now submit building permit applications, track status, and schedule inspections through our new digital services portal.

February 27, 2026

Spring Community Cleanup Day Scheduled for April 18

Volunteers are needed for the annual county-wide cleanup initiative. Registration is open online and at all county library branches.

February 20, 2026

Public Comment Period Open for Proposed Zoning Amendments

The Planning & Zoning Commission invites residents to review and comment on proposed changes to the county's comprehensive land use plan through March 31.

County Services

Parks and Recreation

Parks & Recreation

Explore over 2,400 acres of county parks, trails, sports fields, and community centers open year-round.

Public Safety

Public Safety

Sheriff's office, emergency management, 911 services, and community safety programs for Johnson County.

Library Services

Library System

Five branches serving the community with books, digital resources, programs, and free meeting spaces.

Community Resources

Interactive tools and information for Johnson County residents

Meeting Schedule

Events Calendar

County Calendar