Lake
IL flag

Lake

County

Details

GEOID
17097
State
IL
Population
719,339 (2025 est.)
Data Source
Census tiger
Center Coordinates
42.3253, -87.6312

Geographic Boundary

Data Completeness

60% (6/10)
Geographic boundary
Center coordinates
Wikipedia link
Budget link
Agencies (20)
Services
Legislative bodies (2)
Elected officials (2)
State abbreviation
Parent jurisdiction

Agencies (20)

Circuit Court Clerk

Executive Lake

Independently elected office responsible for maintaining court records and processing court filings in Lake County, Illinois.

Public Defender

Judicial Lake

Provides legal representation to indigent defendants in criminal cases in Lake County, Illinois.

Finance and Administrative Services

Executive Lake

Manages county budgeting, accounting, purchasing, and administrative services for Lake County, Illinois.

Health Department

Executive Lake

Provides public health services, disease prevention, and health inspection programs for Lake County, Illinois.

Public Works

Executive Lake

Maintains county infrastructure including roads, bridges, buildings, and stormwater systems in Lake County, Illinois.

County Clerk

Executive Lake

Independently elected office responsible for elections, vital records, and official county documents in Lake County, Illinois.

Regional Superintendent of Schools

Educational Lake

Independently elected office overseeing educational standards, teacher certification, and school compliance in Lake County, Illinois.

County Administrator

Executive Lake

Chief administrative office overseeing day-to-day operations of Lake County, Illinois government.

Veterans Assistance Commission

Executive Lake

Provides assistance, benefits counseling, and support services to veterans and their families in Lake County, Illinois.

County Board

Legislative Lake

Legislative body of Lake County, Illinois. Composed of 19 members elected from geographic districts.

Coroner

Executive Lake

Independently elected office responsible for investigating deaths and determining cause and manner of death in Lake County, Illinois.

Emergency Management

Public_safety Lake

Coordinates emergency preparedness, response, and recovery operations for Lake County, Illinois.

Sheriff's Office

Public_safety Lake

Independently elected law enforcement agency for Lake County, Illinois. Provides patrol, corrections, and court security services.

State's Attorney

Executive Lake

Independently elected chief legal officer for Lake County, Illinois. Prosecutes criminal cases and represents the county in civil matters.

County Treasurer

Executive Lake

Independently elected office responsible for collecting and distributing property taxes and managing county funds in Lake County, Illinois.

Human Resources

Executive Lake

Manages employee recruitment, benefits, training, and labor relations for Lake County, Illinois government.

Planning, Building and Development

Executive Lake

Manages land use planning, building permits, zoning, and community development for Lake County, Illinois.

Transportation

Executive Lake

Plans and manages county transportation systems and transit services in Lake County, Illinois.

Recorder of Deeds

Executive Lake

Independently elected office responsible for recording and maintaining property records and documents in Lake County, Illinois.

Information Technology

Executive Lake

Provides technology infrastructure, applications, and digital services for Lake County, Illinois government.