Lake County, IL

Lake County, IL assessor property search and records

Use this county guide to find official assessor property search resources, recorder and deed links, tax records, GIS parcel maps, permits, and property data insights for Lake County, Illinois. Search an address or APN, then jump to official county sources or property tax and value data.

Official sources

Lake County assessor, recorder, tax, and parcel map sources

Use this table to find the official county source for assessor property search, recorded documents, property tax, GIS parcel maps, permits, and zoning records.

Lake County official assessor, tax, deed, GIS, permit, and land-use sources
Record typeOfficial sourceNotes
Assessed valuesLake County Property Tax Informationtax.lakecountyil.gov
  • Centralized portal for assessment and tax data.
  • Search requires single parameter input.
  • Data is updated regularly.
Deeds and recorded documentsLake County Official Records Searchlake.il.publicsearch.us
  • Official portal for recorded land documents and deeds.
  • Supports index-only or full-text OCR search.
Property taxesLake County Property Tax Informationtax.lakecountyil.gov
  • Provides tax bill information and payment status.
GIS and parcel mapsLake County Tax Parcel Viewermaps.lakecountyil.gov/taxparcelviewer
  • Official interactive GIS parcel map for Lake County.
  • Informational use only; not a legal survey.
Permits and building recordsLake County Building Permitswww.lakecountyil.gov/740/Building-Permits
  • County-level permit information.
  • Note: Incorporated municipalities within Lake County may maintain separate building permit departments.
Zoning and land useLake County Zoning Mapswww.lakecountyil.gov/2093/Zoning-Maps
  • Provides access to county zoning maps and the Unified Development Ordinance.
  • Municipalities may have independent zoning authority.
County data

Lake County tax rates and property values

County and city-level rollups from AssessorSearch indexed property data. Use these values as directional context, then verify parcel-specific details with the official county sources above.

Median estimated value$406,447

Median estimated market value for properties in this county.

AssessorSearch county data
Median assessed value$115,107

Median assessed value from county assessment records when available.

AssessorSearch county data
Median annual property tax$8,865

Median annual property tax amount from indexed tax records when available.

AssessorSearch county data
Median effective property tax rate2.13%

Median effective property tax rate calculated from annual tax and value fields.

AssessorSearch county data

City property data

Top city rollups for estimated value, assessed value, property tax rate, and tax amount.

Lake County city-level property value and tax-rate rollups
CityMedian estimated valueMedian assessed valueMedian effective property tax rateMedian tax amount
Waukegan$239,533$66,8252.04%$4,760
Antioch$360,764$99,8192.33%$7,742
Mundelein$379,641$109,0092.22%$8,517
Grayslake$373,848$107,5172.51%$9,334
Gurnee$397,204$115,0822.34%$9,120
Highland Park$773,220$199,0612.02%$15,018
Libertyville$656,208$182,1811.94%$12,594
Lake Villa$367,025$100,6772.23%$7,551
Buffalo Grove$533,697$152,1862.42%$13,008
Vernon Hills$480,775$131,9402.15%$10,252
FAQ

Lake County property records FAQ

Common questions about assessor, deed, tax, GIS, and permit records.

Where can I verify assessed value in Lake County?

Use the official Lake County Property Tax Information for assessed values, parcel details, exemptions, and property characteristics when those records are available online.

Where can I look up Lake County property tax bills or payments?

Use the official Lake County Property Tax Information for property tax bills, payment history, due dates, or tax collector records.

Where can I find deeds or recorded documents in Lake County?

Use the official Lake County Official Records Search for deeds, mortgages, liens, plats, and other recorded documents. These records are usually separate from assessor property-value records.

Where can I view parcel maps or GIS data in Lake County?

Use the official Lake County Tax Parcel Viewer for parcel maps, map layers, boundaries, and GIS context. GIS maps should be treated as reference tools, not legal surveys.

Can I build a list of Lake County property owners?

Use Affix by AssessorSearch for county property owner lists, filters, exports, skip tracing, and outreach workflows.

Related counties

More Illinois property records

Use related county pages when researching nearby property records or comparing official source patterns.