Home Value Trail

Montgomery County Unincorporated Area, IL home price history and building permits

Montgomery CountyIllinois

  • Price trail: Montgomery County
  • FHFA annual index 1986 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 Montgomery County, the county of Montgomery County Unincorporated Area. The FHFA annual house price index for Montgomery County increased by 55.5% from 2015 to 2025. Building permits in Montgomery County Unincorporated Area authorized 20 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 Montgomery County, the county of Montgomery County Unincorporated Area.

+55.5%

From 2015 to 2025, the FHFA annual all-transactions index for Montgomery County increased by 55.5%.

From 2015 to 2025, the average change in each year is +4.5%, compounded.

Same span at each level: 2015 to 2025
AreaChangeBar
Montgomery County+55.5%
Illinois+64.6%
United States+85.0%
Montgomery County FHFA annual all-transactions index, 100 in 1986
  • Montgomery County
  • United States, set to the same start
  • Recession (NBER dates)
  • Your span

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

Index values for each year
FHFA annual all-transactions index for Montgomery County, 1986 to 2025
YearIndexChange from the year before
2025309.44−3.2%
2024319.80+8.8%
2023293.82+8.9%
2022269.69+12.1%
2021240.56+7.2%
2020224.30+2.3%
2019219.21+4.0%
2018210.84+0.4%
2017210.04+2.1%
2016205.71+3.3%
2015199.05+1.8%
2014195.61−1.3%
2013198.18+0.5%
2012197.11+1.7%
2011193.76−1.6%
2010196.97−2.5%
2009202.05+0.3%
2008201.46−1.3%
2007204.18+4.1%
2006196.16+1.9%
2005192.50+7.1%
2004179.70+4.7%
2003171.58+1.8%
2002168.56+2.3%
2001164.71+5.3%
2000156.39+2.1%
1999153.23+0.3%
1998152.79+1.9%
1997149.94+3.9%
1996144.29−1.0%
1995145.80+15.7%
1994126.07+4.3%
1993120.86+1.4%
1992119.14+8.2%
1991110.08−6.6%
1990117.90+10.6%
1989106.61−7.6%
1988115.37+16.1%
198799.38−0.6%
1986100.00n/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 Montgomery 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: Montgomery 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
Montgomery County−3.2%+38.0%+55.5%+60.7%+97.9%+4.5%
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 Montgomery County Unincorporated Area. The first row is the index of Montgomery County.

Building permits in Montgomery County Unincorporated Area

In the 12 months to August 2026, building permits in Montgomery County Unincorporated Area authorized 20 housing units. In the 12 months before, permits authorized 14 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 Montgomery County Unincorporated Area, by month
MonthAll units1 unit2 or more units
Aug 2026110
Jul 2026220
Jun 2026330
May 2026330
Apr 2026220
Mar 2026110
Feb 2026330
Jan 2026220
Dec 2025000
Nov 2025110
Oct 2025000
Sep 2025220
Aug 2025110
Jul 2025110
Jun 2025110
May 2025110
Apr 2025110
Mar 2025220
Feb 2025110
Jan 2025000
Dec 2024110
Nov 2024110
Oct 2024220
Sep 2024220
Housing units authorized in the 12 months to August 2026, by size of building
FigureMontgomery County Unincorporated AreaMontgomery CountyIllinoisUnited States
All units202019,1571,418,086
In buildings with 1 unit20 (100%)20 (100%)10,712 (56%)888,241 (63%)
In buildings with 2 units0050234,814
In buildings with 3 or 4 units0087117,298
In buildings with 5 or more units0 (0%)0 (0%)7,072 (37%)477,733 (34%)
Units for each 1,000 residentsn/a0.71.54.1
Change from the 12 months before+42.9%+42.9%−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 Montgomery County Unincorporated Area, by year
YearAll units1 unit2 or more units
202511110
2024990
202321210
202210100
202122220
202025250
201927270
201812120
201718180
201627216
201527270
201424240
201323167
201234340
201126260
201024240
200932320
200842420
200735350
200623230
200541410
200458580
2003000
2002000
2001000
2000000
1999000
1998000
1997000
1996000
1995000

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

Where the figures come from

Building permits
US Census Bureau, Building Permits Survey, place files through August 2026, permit office 518500. County, state and national figures from the county and state files.
Price trail
FHFA annual house price index for Montgomery County, 1986 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 Montgomery County Unincorporated Area?
In the 12 months to August 2026, 20 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 14 housing units in the 12 months before. Permits authorized 20 housing units in the 12 months to August 2026. The count increased by 42.9% between the two periods.
How many units have permits from 1995?
Permits in Montgomery County Unincorporated Area authorized 571 housing units from 1995 to 2025. The year with the most units is 2004, with 58.