Median estimated market value for properties in this county.
AssessorSearch county dataMcHenry County, IL
McHenry 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 McHenry County, Illinois. Search an address or APN, then jump to official county sources or property tax and value data.
Search a McHenry County address or APN
Official sources
McHenry 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.
| Record type | Official source | Notes |
|---|---|---|
| Assessed values | McHenry County Property Tax Inquirymchenryil.devnetwedge.com |
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| Deeds and recorded documents | Recorder's Free Web Searchrep4laredo.fidlar.com/ILMcHenry/AvaWeb/ |
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| Property taxes | McHenry County Property Tax Inquirymchenryil.devnetwedge.com |
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| GIS and parcel maps | Athena - Public Property Searchwww.mchenrycountygis.org/Athena/ |
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| Permits and building records | McHenry County Public Portalco-mchenry-il.smartgovcommunity.com |
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| Zoning and land use | PlanDev Viewerwww.mchenrycountygis.org/planning/ |
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County data
McHenry 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 assessed value from county assessment records when available.
AssessorSearch county dataMedian annual property tax amount from indexed tax records when available.
AssessorSearch county dataMedian effective property tax rate calculated from annual tax and value fields.
AssessorSearch county dataCity property data
Top city rollups for estimated value, assessed value, property tax rate, and tax amount.
| City | Median estimated value | Median assessed value | Median effective property tax rate | Median tax amount |
|---|---|---|---|---|
| Crystal Lake | $389,282 | $105,092 | 2.03% | $7,868 |
| Mchenry | $314,387 | $83,475 | 1.91% | $5,925 |
| Woodstock | $335,039 | $88,948 | 2.08% | $6,946 |
| Lake In The Hills | $382,392 | $105,531 | 1.95% | $7,413 |
| Algonquin | $411,335 | $118,306 | 1.98% | $8,370 |
| Huntley | $436,126 | $118,046 | 1.82% | $8,106 |
| Cary | $383,056 | $106,298 | 2.09% | $8,021 |
| Wonder Lake | $285,739 | $74,862 | 1.83% | $5,140 |
| Marengo | $346,497 | $92,820 | 1.64% | $5,571 |
| Harvard | $268,648 | $67,248 | 1.81% | $4,876 |
FAQ
McHenry County property records FAQ
Common questions about assessor, deed, tax, GIS, and permit records.
Where can I search McHenry County property records by address?
Use the official McHenry County Property Tax Inquiry to search McHenry County property records by address or parcel number. Use AssessorSearch property search as a free, easy-to-use option to search McHenry County by address or APN.
How do I find the owners of McHenry County properties?
Use the official McHenry County Property Tax Inquiry for county ownership and parcel records when owner names are available online. Use AssessorSearch property search as a free, easy-to-use option to look up McHenry County properties by address or APN.
Where can I verify assessed value in McHenry County?
Use the official McHenry County Property Tax Inquiry for assessed values, parcel details, exemptions, and property characteristics when those records are available online.
Where can I look up McHenry County property tax bills or payments?
Use the official McHenry County Property Tax Inquiry for property tax bills, payment history, due dates, or tax collector records.
Where can I find deeds or recorded documents in McHenry County?
Use the official Recorder's Free Web 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 McHenry County?
Use the official Athena - Public Property Search for parcel maps, map layers, boundaries, and GIS context. GIS maps should be treated as reference tools, not legal surveys.
Where can I search permits or zoning in McHenry County?
Use McHenry County Public Portal for permits and PlanDev Viewer for zoning or land-use records. City properties may require city-specific permit or planning portals.
Can I build a list of McHenry 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.