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Unincorporated*

This is a list of unincorporated communities in Illinois, arranged in alphabetical order: (Source: Wikipedia)

Housing market indicators

All of these property level data sets are connected to parcel-level data files from the county Assessors offices that include data on every parcel in the Chicago metropolitan area. All of these parcel-level data sets include historical data and are updated on a regular basis ranging from every week to every year depending on the data set.

Housing Stock Composition

The composition of a neighborhood's housing stock determines the appropriate targeted strategies for stabilizing local housing markets.

Housing Units by Property Type

The composition of a neighborhood's housing stock determines the appropriate targeted strategies for stabilizing local housing markets.


Property Type 2024
Single Family 62.1%
Condominium 22.5%
Building with 2-4 Units 0.6%
Building with 5+ Units 14.8%


Property Sales Activity

This indicator provides information on how active local residential property markets are, what types of properties are being purchased, who is buying them, and how much buyers are paying for properties.

Total Sales Activity

This is the total number of property sales in a given year. In Cook County, data are broken out separately for total sales activity on single family homes, condominium units, two-to-four unit buildings, and in buildings with five or more units. Outside of Cook County, data are for all residential parcels.


Property Type 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
All Residential Properties 10,026 7,901 5,806 3,850 3,712 3,883 4,004 5,313 6,530 6,117 6,408 7,293 7,215 6,774 7,096 7,362 9,332 6,552 5,410 5,593
Single Family 1,288 1,001 710 457 481 550 588 722 914 811 902 953 1,010 948 928 851 1,233 941 782 658
Condominium 694 623 402 231 297 280 300 424 462 411 400 432 430 439 473 581 513 478 335 375
Building with 2-4 Units 2 8 4 2 1 5 4 1 5 4 7 8 7 4 6 4 4 5 4 3
Building with 5+ Units 24 11 18 9 5 11 6 7 9 17 23 31 16 20 12 15 25 39 22 15


Sales per 100 Residential Parcels

This indicator allows users to compare the level of property sales activity across geographies. This data point represents the total number of sales on all residential parcels divided by the total number of residential parcels in a given year, multiplied by 100.


Property Type 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
All Residential Properties 32.1 25.3 18.6 12.3 11.9 12.4 12.8 17.0 21.3 19.8 20.8 23.6 23.4 22.0 23.0 23.9 30.4 21.3 17.6 18.2


Share of Sales, Business Buyers

This represents a range of investor types from small mom-and-pop investors to large Wall Street-traded equity funds. Heightened levels of single family homes purchased by business buyers is often indicative of a distressed and low priced inventory of homes, and low demand for owner-occupied housing in a neighborhood. In Cook County, this data point is available as the share of total sales activity where the buyer was a business entity by property type (single family homes, condominium units, two-to-four unit buildings, and in buildings with five or more units). Outside of Cook County, data are for all residential parcels.


Property Type 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
All Residential Properties 7.4% 7.6% 7.1% 7.9% 9.0% 9.8% 9.8% 8.6% 10.8% 9.2% 8.8% 7.8% 8.3% 7.5% 8.0% 8.5% 6.8% 8.5% 12.7% 11.5%
Single Family 6.4% 5.8% 6.8% 7.0% 5.8% 9.1% 9.0% 10.8% 12.8% 10.4% 10.0% 9.1% 10.2% 8.8% 9.8% 4.5% 8.3% 9.1% 16.0% 12.6%
Condominium 3.0% 6.1% 4.7% 8.7% 18.2% 11.1% 12.0% 9.2% 11.5% 9.0% 11.3% 11.8% 14.7% 12.5% 19.9% 45.6% 7.6% 7.7% 11.0% 19.5%
Building with 2-4 Units -- 12.5% 25.0% -- -- 40.0% -- -- -- 75.0% 42.9% 37.5% 14.3% 25.0% 33.3% -- 25.0% 80.0% -- 66.7%
Building with 5+ Units 25.0% 36.4% 38.9% 33.3% 20.0% 81.8% 66.7% 42.9% 44.4% 70.6% 56.5% 87.1% 50.0% 60.0% 75.0% 86.7% 88.0% 79.5% 81.8% 86.7%


Share of Sales, Extremely Low Value

This represents the percent of sales that were purchased for less than $20,000 in a given year. In Cook County, this data point is available as the share of total sales activity that sold for less than $20,000 by property type (single family homes, condominium units, two-to-four unit buildings, and in buildings with five or more units). Outside of Cook County, data are for all residential parcels.


Property Type 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
All Residential Properties 0.3% 0.2% 0.2% 0.7% 0.7% 0.6% 0.7% 0.8% 0.6% 0.7% 0.9% 0.8% 0.7% 0.6% 0.5% 0.5% 0.4% 0.6% 0.7% 0.4%
Single Family 0.2% 0.2% 0.6% 0.2% 0.2% 0.4% 0.5% 0.7% 1.3% 1.1% 0.4% -- 0.6% 0.2% 0.5% 0.1% 0.2% 0.7% 0.3% 0.3%
Condominium 0.3% -- -- 0.4% 2.7% 1.4% 2.3% 0.5% 0.6% 0.5% 0.3% 0.2% 1.2% 0.5% 0.6% -- 0.2% 0.4% -- --
Building with 2-4 Units -- -- -- -- -- 20.0% -- -- 20.0% -- -- -- -- -- -- -- -- -- -- --


Mortgage Activity

These data measure the flow of mortgage credit into an area and indicates the level of lender investment. The level of mortgage activity in a neighborhood relative to other areas can assess how access to credit has changed over time in a community and how the flow of credit differs across geographies and for different property types.

Total Mortgage Activity

This is the total number of mortgages in a given year. In Cook County, data are broken out separately for total mortgage activity on single family homes, condominium units, two-to-four unit buildings, and in buildings with five or more units. Outside of Cook County, data are for all residential parcels.


Property Type 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
All Residential Properties 42,855 37,269 30,241 20,018 21,149 17,601 15,220 19,306 16,939 12,252 14,299 16,688 14,115 12,054 14,327 21,179 24,167 12,061 8,096 8,917
Single Family 5,887 5,524 4,609 2,891 2,936 2,486 2,355 2,878 2,472 1,761 2,110 2,422 2,023 1,674 2,047 2,761 3,702 1,669 1,122 1,143
Condominium 1,786 1,712 1,252 620 397 312 290 452 474 367 361 425 416 388 411 414 639 414 263 275
Building with 2-4 Units 18 22 14 7 4 3 7 4 7 6 6 5 7 3 5 4 13 5 5 4
Building with 5+ Units 50 19 27 23 18 19 11 21 33 32 39 35 16 31 36 22 28 52 21 19


Mortgages per 100 Residential Parcels

This indicator allows users to compare the level of mortgage activity across geographies. This data point represents the total number of mortgage liens on all residential parcels divided by the total number of residential parcels in a given year, multiplied by 100.


Property Type 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
All Residential Properties 137.2 119.3 96.8 64.1 67.7 56.3 48.7 61.8 55.4 39.6 46.3 54.1 45.8 39.1 46.5 68.8 78.6 39.3 26.4 29.0


Foreclosure Filing Activity

This is an indicator of distress in a local housing market and viewing changing levels of activity allows for an understanding of the evolving nature of the foreclosure crisis in a neighborhood.

Total Foreclosure Filings Activity

This is the total number of new foreclosure filings in a given year. In Cook County, data are broken out separately for foreclosure filing activity on single family homes, condominium units, two-to-four unit buildings, and in buildings with five or more units. Outside of Cook County, data are for all residential parcels.


Property Type 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
All Residential Properties 1,012 1,369 1,912 2,876 3,404 4,177 3,233 3,289 1,916 1,348 1,131 999 973 815 802 298 161 655 526 522
Single Family 144 199 272 442 563 654 554 547 289 227 160 159 183 132 117 42 25 108 73 77
Condominium 30 68 110 209 268 358 250 244 130 68 41 39 34 19 26 12 5 23 5 15
Building with 2-4 Units 1 2 2 6 2 9 3 1 2 -- 2 -- 1 -- -- -- -- 1 -- --
Building with 5+ Units 1 3 2 1 2 2 4 1 -- 3 1 1 -- -- -- -- -- -- -- 2


Foreclosure Filings per 100 Residential Parcels

This indicator allows users to compare the level of foreclosure filing activity across geographies. This data point represents the total number of foreclosure filings on all residential parcels divided by the total number of residential parcels in a given year, multiplied by 100.


Property Type 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
All Residential Properties 3.2 4.4 6.1 9.2 10.9 13.4 10.3 10.5 6.3 4.4 3.7 3.2 3.2 2.6 2.6 1.0 0.5 2.1 1.7 1.7


Cumulative Foreclosure Filings Activity

Annual levels of foreclosure filing activity likely do not convey the impact that foreclosure has had in a particular community, as geographies vary in density and size, and the drivers behind the Great Recession foreclosure crisis led to very different annual patterns of foreclosure filing activity across the region. This indicator represents the cumulative impact of foreclosure in a neighborhood measured as the unique share of residential properties that have had at least one foreclosure filing since 2005. Please note that while other indicators include data through 2024, cumulative foreclosure filings activity data are through 2023.


Property Type 2024
All Residential Properties 17.9%


Foreclosure Auctions

These are properties that have completed the foreclosure process. Understanding foreclosure auction activity helps determine the flow of year-over-year of REO (real estate owned) properties into a market, how third-party demand at auctions differs based on property types, and the density of REO activity across geographies. The level of completed foreclosure auctions activity in a neighborhood indicates distress in a local housing market.

Total Auction Activity

This is the total number of completed foreclosure auctions in a given year. In Cook County, data are broken out separately for total auction activity on single family homes, condominium units, two-to-four unit buildings, and in buildings with five or more units. Outside of Cook County, data are for all residential parcels.


Property Type 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
All Residential Properties 197 271 489 847 1,155 1,120 1,035 1,567 1,607 1,275 855 664 470 453 337 97 101 185 140 98
Single Family 18 26 70 131 181 194 144 236 218 174 160 127 78 80 66 6 17 37 18 16
Condominium 4 10 35 85 124 121 102 172 155 87 63 38 29 11 18 5 -- 12 7 3
Building with 2-4 Units -- -- -- 1 3 -- 3 1 1 3 1 1 1 -- -- -- -- -- 1 --
Building with 5+ Units -- 2 1 1 1 -- 1 1 1 -- 1 1 1 -- -- -- -- -- -- --


Share of Auctions Resulting in REO

This is the percent of completed foreclosure auctions in a given geography where there were no bidders and the property became bank-owned REO (real estate owned).


Property Type 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
All Residential Properties 83.2% 92.6% 95.3% 98.3% 97.6% 96.7% 96.7% 93.6% 89.1% 90.8% 88.0% 86.4% 80.2% 79.9% 81.6% 79.4% 73.3% 77.3% 64.3% 59.2%
Single Family 61.1% 96.2% 97.1% 99.2% 98.3% 96.4% 95.8% 91.9% 87.2% 92.0% 90.6% 84.3% 78.2% 76.3% 78.8% 100.0% 82.4% 64.9% 66.7% 50.0%
Condominium 75.0% 90.0% 94.3% 98.8% 98.4% 98.3% 94.1% 87.8% 85.2% 85.1% 71.4% 60.5% 37.9% 36.4% 50.0% 80.0% -- 83.3% 85.7% 66.7%
Building with 2-4 Units -- -- -- 100.0% 100.0% -- 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% -- -- -- -- -- 100.0% --
Building with 5+ Units -- -- -- 100.0% 100.0% -- 100.0% 100.0% 100.0% -- 100.0% 100.0% 100.0% -- -- -- -- -- -- --


REO per 100 Residential Parcels

This indicator allows users to compare the level of REO activity across geographies. This data point represents the total number of auctions resulting in REO status on all residential parcels divided by the total number of residential parcels in a given year, multiplied by 100.


Property Type 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
All Residential Properties 0.5 0.8 1.5 2.7 3.6 3.5 3.2 4.7 4.7 3.7 2.4 1.9 1.2 1.2 0.9 0.3 0.2 0.5 0.3 0.2