Northbrook
Property Data

Cook County, Illinois

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

Cook County

ZIP Codesby Total Population

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Total Population
41,40641,406

DistributionTotal Population

No data available

Demographics

Total Population

41,406

Median Age

49.5

Population Under 18

20.7%

Population 65+

27.1%

Total Households

16,135

Average Household Size

2.51

Northbrook, 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 Northbrook, IL
ZIP/ZCTAPopulationMedian household incomeMedian monthly gross rentOwner-occupied share
6006241,406$143,323$2,01382.9%

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 Northbrook, 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 records558Recorded509Model estimateRange: 460–526-8.8%
Average recorded sale amount$812,944Recorded$837,883Model estimate+3.1%

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: June 2026; not verified completeness.

Recorded property statistics

Reported property statistics for Northbrook, IL
MeasureNorthbrook, ILCook County, IL
Median recorded sale amount$710,000$360,000
Recorded amount, 10th percentile$382,400$160,000
Recorded amount, 90th percentile$1,419,800$880,000
Average recorded floor area (sq ft)2,7822,276
Average recorded bedrooms3.63.3
Average recorded bathrooms2.61.9
Median year built19761960
Condominium share of properties22.6%24.5%

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

County input file published Oct 23, 2026. Calculated . Published . Dataset last refreshed: .

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

County input file published Oct 23, 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.

Parcel sale records
Oct 1, 2025–Sep 30, 2026
509
Model estimateHistorical error-adjusted range: 472–497.
Median sale amount
September 2026
Unavailable
The estimate did not pass checks against recorded sales.
Median-amount change
September 2026 versus the prior year
Unavailable
There is not enough supported history for this estimate.

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: June 2026; not a verified completeness date.

Properties in Northbrook

Showing page 269 of properties

3675 Commercial Avenue

Northbrook, IL 60062

3675 Oak Avenue

Northbrook, IL 60062

3675 Walters Avenue

Northbrook, IL 60062

3680 Commercial Avenue

Northbrook, IL 60062

3680 Greenleaf Drive

Northbrook, IL 60062

3680 Woodhead Drive

Northbrook, IL 60062

3685 Woodhead Drive

Northbrook, IL 60062

369 Park Drive

Northbrook, IL 60062

3690 Maple Avenue

Northbrook, IL 60062

3690 Oak Avenue

Northbrook, IL 60062

3690 Whirlaway Drive

Northbrook, IL 60062

3690 Whirlaway Drive

Northbrook, IL 60062

3691 Maple Avenue

Northbrook, IL 60062

3691 Oak Avenue

Northbrook, IL 60062

3691 Walters Avenue

Northbrook, IL 60062

3691 Whirlaway Drive

Northbrook, IL 60062

37 Andover Circle

Northbrook, IL 60062

37 The Court

Northbrook, IL 60062

37 The Court Unit Of Greenway

Northbrook, IL 60062

37 Wellesley Circle

Northbrook, IL 60062

37 Wellington Road

Northbrook, IL 60062

370 Park Drive

Northbrook, IL 60062

370 Versailles Drive

Northbrook, IL 60062

3700 Dauphine Avenue

Northbrook, IL 60062

3700 Dundee Road

Northbrook, IL 60062

3700 Greenleaf Drive

Northbrook, IL 60062

3700 Heritage Drive

Northbrook, IL 60062

3700 Pebble Beach Road

Northbrook, IL 60062

3700 Provenance Way

Northbrook, IL 60062

3700 Riviera Court

Northbrook, IL 60062

3700 Salem Walk

Northbrook, IL 60062

3700 Salem Walk

Northbrook, IL 60062

3700 Whirlaway Drive

Northbrook, IL 60062

3701 Commercial Avenue

Northbrook, IL 60062

3701 Heritage Drive

Northbrook, IL 60062

3701 Provenance Way

Northbrook, IL 60062

3702 Bernay Drive

Northbrook, IL 60062

3702 Provenance Way

Northbrook, IL 60062

3702 Radcliffe Drive

Northbrook, IL 60062

3702 Salem Walk

Northbrook, IL 60062

3702 Torrey Pines Parkway

Northbrook, IL 60062

3703 Dauphine Avenue

Northbrook, IL 60062

3703 Pebble Beach Road

Northbrook, IL 60062

3703 Provenance Way

Northbrook, IL 60062

3703 Radcliffe Drive

Northbrook, IL 60062

3703 Salem Walk

Northbrook, IL 60062

3703 Torrey Pines Parkway

Northbrook, IL 60062

3704 Provenance Way

Northbrook, IL 60062

3705 Maple Avenue

Northbrook, IL 60062

3705 Provenance Way

Northbrook, IL 60062

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