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State, one year

Illinois in 2021

Index change and building permits for the year, with every county.

In 2021 the FHFA house price index for Illinois changed +7.8%, against +11.6% for the United States and +1.1% in 2020.

19,658 housing units were authorised by building permits in the state that year (10,937 single-family), +8.9% on 2020; the national total was 1,736,982.

+7.8%Illinois index, 2020–2021US +11.6%
19,658housing units permitted in 202110,937 single-family
95 of 97counties with a rising indexmedian county +7.0%
1,736,982units permitted nationally in 2021
← 2020Illinois overview2022 →

Counties in 2021

Ranked by the county index change from 2020 to 2021 (FHFA annual county index). Permits are units authorised in 2021; per 1,000 uses the vintage 2025 population.

CountyIndex change 2021Units permittedSingle-familyPer 1,000
Mason County+22.3%770.6
Hamilton County+13.1%000.0
Winnebago County+12.8%1721460.6
Wabash County+12.4%440.4
Cumberland County+12.2%000.0
Boone County+12.1%1081082.0
Perry County+11.3%22221.1
Ogle County+11.0%32320.6
DeKalb County+10.6%2401302.4
Lawrence County+10.6%64644.6
McHenry County+10.3%1,3749594.3
Putnam County+10.1%19193.4
Gallatin County+10.0%000.0
Kendall County+9.9%6846424.7
Will County+9.9%1,9701,4962.8
Richland County+9.8%220.1
Kane County+9.6%1,3338942.5
Shelby County+9.6%28281.4
McLean County+9.3%2832011.7
Bureau County+9.2%12120.4
Kankakee County+9.2%1401401.3
De Witt County+9.0%1080.7
Ford County+9.0%880.6
St. Clair County+9.0%5424442.2
Franklin County+8.8%13130.4
Johnson County+8.8%000.0
LaSalle County+8.6%77770.7
Williamson County+8.6%93811.4
Jackson County+8.5%660.1
Champaign County+8.4%5942492.8
Clay County+8.4%530.4
Coles County+8.3%1130.2
Lake County+8.3%9027211.3
Piatt County+8.1%22221.3
Vermilion County+8.1%660.1
Effingham County+8.0%32240.9
Carroll County+7.9%40402.6
Menard County+7.9%15151.3
Monroe County+7.9%1171113.4
Grundy County+7.7%78721.4
Jefferson County+7.7%11110.3
Clark County+7.4%660.4
Greene County+7.4%220.2
Madison County+7.4%3993941.5
Cook County+7.2%6,7891,3381.3
Montgomery County+7.2%22220.8
Iroquois County+7.1%26261.0
Jasper County+7.1%330.3
Fayette County+7.0%310.1
Rock Island County+7.0%1451071.0
Hancock County+6.9%110.1
Macon County+6.8%33310.3
Marion County+6.8%860.2
Mercer County+6.8%880.5
Adams County+6.7%70701.1
Henry County+6.7%54141.1
Stark County+6.7%110.2
Fulton County+6.6%34341.0
Marshall County+6.6%440.3
Clinton County+6.5%84782.3
Jo Daviess County+6.5%41391.9
Logan County+6.5%990.3
DuPage County+6.4%1,5549651.7
Macoupin County+6.3%71711.6
Peoria County+6.3%76760.4
Edgar County+6.2%000.0
Bond County+6.0%26141.5
Pike County+6.0%17151.2
Livingston County+5.9%22180.6
Cass County+5.8%440.3
Tazewell County+5.7%222641.7
Sangamon County+5.6%3172241.6
Jersey County+5.5%123745.8
Knox County+5.5%330.1
Morgan County+5.5%220.1
Woodford County+5.5%42401.1
Stephenson County+5.4%20200.5
Douglas County+5.3%29291.5
Whiteside County+5.1%23230.4
Lee County+4.9%26180.8
Massac County+4.6%15151.1
Union County+4.6%880.5
Christian County+4.3%28280.8
Moultrie County+4.2%97976.7
Randolph County+4.0%44441.5
McDonough County+3.8%220.1
Henderson County+2.9%991.5
Washington County+2.7%28282.1
Crawford County+2.5%660.3
White County+2.3%330.2
Schuyler County+2.1%000.0
Saline County+1.9%000.0
Warren County+1.1%330.2
Brown County+1.0%000.0
Scott County+0.2%000.0
Wayne County−0.2%000.0
Edwards County−4.8%000.0

Permits by year, 1995–2025

Housing units authorised in Illinois by year050,000100,0001995: 47,467 units (35,392 single-family, 12,075 in multi-unit buildings)19951996: 49,592 units (35,912 single-family, 13,680 in multi-unit buildings)1997: 46,323 units (32,801 single-family, 13,522 in multi-unit buildings)1998: 47,984 units (36,177 single-family, 11,807 in multi-unit buildings)1999: 53,974 units (39,228 single-family, 14,746 in multi-unit buildings)2000: 51,944 units (37,817 single-family, 14,127 in multi-unit buildings)20002001: 54,839 units (39,362 single-family, 15,477 in multi-unit buildings)2002: 60,971 units (42,545 single-family, 18,426 in multi-unit buildings)2003: 62,211 units (45,379 single-family, 16,832 in multi-unit buildings)2004: 59,753 units (46,207 single-family, 13,546 in multi-unit buildings)2005: 66,942 units (47,705 single-family, 19,237 in multi-unit buildings)20052006: 58,802 units (37,903 single-family, 20,899 in multi-unit buildings)2007: 43,020 units (24,511 single-family, 18,509 in multi-unit buildings)2008: 22,528 units (11,827 single-family, 10,701 in multi-unit buildings)2009: 10,859 units (7,844 single-family, 3,015 in multi-unit buildings)2010: 12,318 units (7,624 single-family, 4,694 in multi-unit buildings)20102011: 11,809 units (6,834 single-family, 4,975 in multi-unit buildings)2012: 13,797 units (8,564 single-family, 5,233 in multi-unit buildings)2013: 15,545 units (9,869 single-family, 5,676 in multi-unit buildings)2014: 20,578 units (10,553 single-family, 10,025 in multi-unit buildings)2015: 19,571 units (10,076 single-family, 9,495 in multi-unit buildings)20152016: 22,603 units (10,187 single-family, 12,416 in multi-unit buildings)2017: 24,992 units (10,181 single-family, 14,811 in multi-unit buildings)2018: 21,510 units (10,041 single-family, 11,469 in multi-unit buildings)2019: 20,524 units (8,745 single-family, 11,779 in multi-unit buildings)2020: 18,058 units (9,237 single-family, 8,821 in multi-unit buildings)20202021: 19,658 units (10,937 single-family, 8,721 in multi-unit buildings)2022: 20,549 units (9,765 single-family, 10,784 in multi-unit buildings)2023: 16,863 units (9,554 single-family, 7,309 in multi-unit buildings)2024: 20,326 units (10,326 single-family, 10,000 in multi-unit buildings)2025: 18,551 units (10,821 single-family, 7,730 in multi-unit buildings)2025

Housing units authorised in Illinois by yearsingle-family2+ unit buildings

Source: Federal Housing Finance Agency annual state and county house price indexes (updated March 31, 2026); Census Bureau Building Permits Survey annual state and county files. Public domain. Methodology.