Union
Property Data

Mchenry County, Illinois

Explore accurate parcel and ownership records,
directly sourced from county assessors.

Mchenry County

ZIP Codesby Total Population

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Total Population
1,8311,831

DistributionTotal Population

No data available

Demographics

Total Population

1,831

Median Age

39.7

Population Under 18

24.3%

Population 65+

14.3%

Total Households

704

Average Household Size

2.60

Union, IL housing and demographic statistics

ZIP/ZCTA areas can cross city and county boundaries. Each row describes its ZIP/ZCTA area, not the city as a whole. These values are not combined into a city estimate.

Individual ZIP/ZCTA estimates associated with Union, IL
ZIP/ZCTAPopulationMedian household incomeMedian monthly gross rentOwner-occupied share
601801,831$110,070$1,71278.6%

Source: U.S. Census Bureau American Community Survey (ACS), 2020–2024 five-year estimates, via Realie. Measurement period: –. Published by the Census Bureau on ; published by Realie on . These are five-year estimates, not a measurement of current conditions. — indicates unavailable or suppressed data.

Area property statistics

Recorded property characteristics and residential parcel-sale records for Union, IL. Sale amounts describe recorded transfers, not asking prices or appraisals. Each measure uses records with that information available.

Sale records use the AVM's residential, amount, floor-area, year-built, price-per-area, deed, buyer-relationship and distress filters. Known multi-parcel deals are also excluded. Unknown package flags are not proof of a single-parcel sale. Counts represent eligible parcel sale records. Recorded annual averages require at least 10 eligible sales. Projections must have enough history and pass checks against earlier recorded sales. Recent sales can be underreported; different coverage between years can affect the changes.

City measurements cover the selected county's portion of the city.

Annual sales comparison

Calendar 2025 recorded sales versus calendar 2026 model projections. Both years cover January 1–December 31. Change compares the 2026 projection with the recorded 2025 value. Annual average amounts weight each month by its sales count; they are not monthly medians.

Calendar-year sales comparison
Metric20252026 projectedChange (%)
Residential sale records15Recorded——
Average recorded sale amount$314,767Recorded——

Projections are not confirmed transactions or property valuations. Recent sales can be underreported; different coverage between years can affect the change. Unsupported values remain unavailable. Ranges reflect historical model errors, not confidence intervals. Annual comparison calculated . Assumed observation cutoff: April 2026; not verified completeness.

Recorded property statistics

Reported property statistics for Union, IL
MeasureUnion, ILMchenry County, IL
Median recorded sale amount$369,500$350,000
Recorded amount, 10th percentile$259,800$210,000
Recorded amount, 90th percentile$455,600$590,000
Average recorded floor area (sq ft)2,6942,298
Average recorded bedrooms3.33.2
Average recorded bathrooms2.22.5
Median year built19751990
Condominium share of properties0%0.1%

Union, IL: Recorded median and percentile amounts: May 7, 2025–Oct 28, 2026.

County input file published Oct 24, 2026. Calculated . Published . Dataset last refreshed: .

Mchenry County, IL: Recorded median and percentile amounts: May 7, 2025–Oct 28, 2026.

County input file published Oct 24, 2026. Calculated . Published . Dataset last refreshed: .

Source: Realie property-record aggregates. Input publication and calculation dates do not establish complete transaction coverage. Missing measures are shown as — or omitted.

Other recent-period estimates

These use different periods from the calendar-year comparison. Estimates extend parcel-record counts and recorded amounts; they are not confirmed current transactions or individual-property values.

No supported recent-period estimates are available for this area. Recorded statistics above remain available.

Transaction coverage has not been verified. Known multi-parcel deals are excluded; missing package flags do not establish that every remaining sale covers one parcel. Amount change compares monthly record medians, not the appreciation of the same homes. Ranges reflect historical model errors; they are not confidence intervals and can exclude the point estimate. Assumed observation cutoff: April 2026; not a verified completeness date.

Properties in Union

Showing page 11 of properties

6404 Dunham Road

Union, IL 60180

6405 Dunham Road

Union, IL 60180

6405 Main Street

Union, IL 60180

6406 Main Street

Union, IL 60180

6407 Main Street

Union, IL 60180

6407 Vine Street

Union, IL 60180

6408 Elm Street

Union, IL 60180

6408 Main Street

Union, IL 60180

6408 Wayne Street

Union, IL 60180

6410 Wayne Street

Union, IL 60180

6411 Main Street

Union, IL 60180

6413 Wayne Street

Union, IL 60180

6414 Vine Street

Union, IL 60180

6414 Wayne Street

Union, IL 60180

6415 Vine Street

Union, IL 60180

6415 Wayne Street

Union, IL 60180

6416 Elm Street

Union, IL 60180

6416 Elm Street

Union, IL 60180

6418 Wayne Street

Union, IL 60180

6419 Main Street

Union, IL 60180

6421 Vine Street

Union, IL 60180

6421 Wayne Street

Union, IL 60180

6422 Elm Street

Union, IL 60180

6422 Main Street

Union, IL 60180

6422 Wayne Street

Union, IL 60180

6423 Main Street

Union, IL 60180

6503 Elm Street

Union, IL 60180

6504 Elm Street

Union, IL 60180

6504 Main Street

Union, IL 60180

6504 Vine Street

Union, IL 60180

6504 Vine Street

Union, IL 60180

6505 Mccue Road

Union, IL 60180

6506 Wayne Street

Union, IL 60180

6507 Elm Street

Union, IL 60180

6507 Vine Street

Union, IL 60180

6507 Vine Street

Union, IL 60180

6509 National Street

Union, IL 60180

6509 Olson Road

Union, IL 60180

6512 Elm Street

Union, IL 60180

6514 Elm Street

Union, IL 60180

6515 Dunham Road

Union, IL 60180

6516 Olson Road

Union, IL 60180

6521 Main Street

Union, IL 60180

6521 Main Street

Union, IL 60180

6523 Main Street

Union, IL 60180

6524 Main Street

Union, IL 60180

6525 Main Street

Union, IL 60180

6550 Olson Road

Union, IL 60180

6601 Main Street

Union, IL 60180

6602 Main Street

Union, IL 60180

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