Home Value Trail

Cook County Part Unincorporated Area, IL home price history and building permits

Cook CountyChicago-Naperville-Elgin, IL-INIllinois

  • Price trail: Cook County
  • FHFA annual index 1975 to 2025
  • Developmental index
  • Permits through

The annual files of FHFA have no index for a city. The line on this page is the index of Cook County, the county of Cook County Part Unincorporated Area. The FHFA annual house price index for Cook County increased by 61.3% from 2015 to 2025. Building permits in Cook County Part Unincorporated Area authorized 19 housing units in the 12 months to August 2026.

2015

The annual files of FHFA have no index for a city. These figures are for the index of Cook County, the county of Cook County Part Unincorporated Area.

+61.3%

From 2015 to 2025, the FHFA annual all-transactions index for Cook County increased by 61.3%.

From 2015 to 2025, the average change in each year is +4.9%, compounded.

Same span at each level: 2015 to 2025
AreaChangeBar
Cook County+61.3%
Chicago-Naperville-Elgin, IL-IN+68.3%
Illinois+64.6%
United States+85.0%
Cook County FHFA annual all-transactions index, 100 in 1975
  • Cook County
  • United States, set to the same start
  • Recession (NBER dates)
  • Your span

This is the price trail of Cook County, not of Cook County Part Unincorporated Area. The annual files of FHFA have no index for a city.

Index values for each year
FHFA annual all-transactions index for Cook County, 1975 to 2025
YearIndexChange from the year before
2025843.37+5.5%
2024799.24+6.4%
2023750.95+5.7%
2022710.47+11.3%
2021638.26+7.2%
2020595.48+0.9%
2019590.26+2.7%
2018574.64+2.5%
2017560.79+3.2%
2016543.32+3.9%
2015522.93+3.9%
2014503.16+5.9%
2013475.20+1.1%
2012470.15−3.9%
2011489.00−6.7%
2010523.85−9.0%
2009575.52−11.8%
2008652.26−5.3%
2007688.86+1.3%
2006679.94+7.9%
2005630.41+11.9%
2004563.60+9.9%
2003512.87+4.8%
2002489.61+7.0%
2001457.78+7.2%
2000426.90+9.6%
1999389.41+4.6%
1998372.36+2.6%
1997363.05+3.3%
1996351.59+3.0%
1995341.46+3.9%
1994328.73+2.9%
1993319.40+3.0%
1992310.05+3.0%
1991300.95+3.6%
1990290.40+5.3%
1989275.68+8.9%
1988253.16+12.2%
1987225.58+9.7%
1986205.60+6.4%
1985193.18+4.5%
1984184.80+6.6%
1983173.42+20.6%
1982143.83−12.9%
1981165.04+7.1%
1980154.11−1.9%
1979157.07+3.3%
1978152.07+16.9%
1977130.07+16.9%
1976111.27+11.3%
1975100.00n/a

Each figure is the change of the FHFA annual all-transactions index, from the year that you pick to 2025. It is a change for the area. It is not the change in the value of your home, and it does not use the price that you paid.

The average for each year is a compounded annual change. The guide to values explains more.

When using the FHFA House Price Calculator, please note that it does not project the actual value of any particular house.

FHFA, about its own House Price Calculator: Federal Housing Finance Agency, House Price Index Datasets, HPI Calculator, copied on . The calculator of FHFA uses quarterly figures. For the states and the 100 largest metro areas it uses the purchase-only index. Its figures can differ from the figures here.

Since the last FHFA release

No recorded FHFA release changed a figure of Cook County. The record of releases starts with the next FHFA release. FHFA releases recorded by this site

Same span, every level

Change in the FHFA annual index to 2025: Cook County and the areas above it
Area1 year2024 to 20255 years2020 to 202510 years2015 to 202520 years2005 to 2025Since 20002000 to 2025Each yearaverage of 10 years
Cook County+5.5%+41.6%+61.3%+33.8%+97.6%+4.9%
Chicago-Naperville-Elgin, IL-IN+5.6%+47.2%+68.3%+43.1%+101.1%+5.3%
Illinois+5.7%+46.9%+64.6%+44.9%+95.6%+5.1%
United States+2.8%+47.0%+85.0%+79.1%+158.3%+6.3%

The annual files of FHFA have no index for Cook County Part Unincorporated Area. The first row is the index of Cook County.

Building permits in Cook County Part Unincorporated Area

In the 12 months to August 2026, building permits in Cook County Part Unincorporated Area authorized 19 housing units. In the 12 months before, permits authorized 18 units.

Housing units authorized by month, latest 24 months
  • Units in buildings with 1 unit
  • Units in buildings with 2 or more units
Units for each month
Housing units authorized by building permits in Cook County Part Unincorporated Area, by month
MonthAll units1 unit2 or more units
Aug 2026220
Jul 2026110
Jun 2026220
May 2026220
Apr 2026220
Mar 2026220
Feb 2026110
Jan 2026110
Dec 2025110
Nov 2025110
Oct 2025220
Sep 2025220
Aug 2025110
Jul 2025110
Jun 2025220
May 2025220
Apr 2025220
Mar 2025220
Feb 2025110
Jan 2025110
Dec 2024110
Nov 2024110
Oct 2024220
Sep 2024220
Housing units authorized in the 12 months to August 2026, by size of building
FigureCook County Part Unincorporated AreaCook CountyIllinoisUnited States
All units194,92919,1571,418,086
In buildings with 1 unit19 (100%)1,159 (24%)10,712 (56%)888,241 (63%)
In buildings with 2 units010450234,814
In buildings with 3 or 4 units060787117,298
In buildings with 5 or more units0 (0%)3,059 (62%)7,072 (37%)477,733 (34%)
Units for each 1,000 residentsn/a0.91.54.1
Change from the 12 months before+5.6%−23.1%−5.7%−0.1%
Housing units authorized by year, 1995 to 2025
  • Units in buildings with 1 unit
  • Units in buildings with 2 or more units
Units for each year
Housing units authorized by building permits in Cook County Part Unincorporated Area, by year
YearAll units1 unit2 or more units
202518180
202419190
202317170
202218180
202122220
202018180
201920182
201819172
2017322210
201639390
201540400
2014000
2013000
201216160
201120200
201015150
200915150
200839390
200798980
20061261260
20051301300
20041281280
20031491490
20021111110
20011451450
20001591590
19991811810
19981501500
19971871870
199628926227
19951991990

A permit authorizes construction. It does not show that the work started or that it is complete. For a place that does not report each month, the Census Bureau imputes the monthly figures.

Agency pages

  • Building Permits SurveyUS Census BureauThe survey of housing units that building permits authorize.
  • FHFA House Price IndexFederal Housing Finance AgencyThe index page of FHFA: data, tools and the release dates.
  • FHFA HPI CalculatorFederal Housing Finance AgencyThe calculator of FHFA. It works by quarter, for a state or a metro area.

Each link loaded on .

Cite this page

Home Value Trail. Cook County Part Unincorporated Area, IL home price history and building permits. https://homevaluetrail.com/city/il/cook-county-part-unincorporated-area/. Source: US Census Bureau, Building Permits Survey; Federal Housing Finance Agency, annual house price index for Cook County. FHFA release of .

Where the figures come from

Building permits
US Census Bureau, Building Permits Survey, place files through August 2026, permit office 171100. County, state and national figures from the county and state files.
Price trail
FHFA annual house price index for Cook County, 1975 to 2025. Release of March 31, 2026.
County of the place
The county code of the Building Permits Survey row, and the Census Bureau 2020 place by county file.
Residents
US Census Bureau, population estimates for 2025.

All files are works of the US government, in the public domain. To report an error, see Corrections.

Questions

What kinds of buildings have permits in Cook County Part Unincorporated Area?
In the 12 months to August 2026, 19 units are in buildings with one unit. 0 units are in buildings with two to four units. 0 units are in buildings with five or more units.
How does the count compare with the 12 months before?
Permits authorized 18 housing units in the 12 months before. Permits authorized 19 housing units in the 12 months to August 2026. The count increased by 5.6% between the two periods.
How many units have permits from 1995?
Permits in Cook County Part Unincorporated Area authorized 2,419 housing units from 1995 to 2025. The year with the most units is 1996, with 289.