Home Value Trail

Mason County Unincorporated Area, WA home price history and building permits

Mason CountyShelton, WAWashington

  • Price trail: Mason County
  • FHFA annual index 1983 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 Mason County, the county of Mason County Unincorporated Area. The FHFA annual house price index for Mason County increased by 139.6% from 2015 to 2025. Building permits in Mason County Unincorporated Area authorized 156 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 Mason County, the county of Mason County Unincorporated Area.

+139.6%

From 2015 to 2025, the FHFA annual all-transactions index for Mason County increased by 139.6%.

From 2015 to 2025, the average change in each year is +9.1%, compounded.

Same span at each level: 2015 to 2025
AreaChangeBar
Mason County+139.6%
Shelton, WA+139.6%
Washington+113.0%
United States+85.0%
Mason County FHFA annual all-transactions index, 100 in 1983
  • Mason County
  • United States, set to the same start
  • Recession (NBER dates)
  • Your span

This is the price trail of Mason County, not of Mason 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 Mason County, 1983 to 2025
YearIndexChange from the year before
2025666.50+4.8%
2024636.07+5.1%
2023605.00+3.4%
2022585.21+15.5%
2021506.72+17.5%
2020431.40+6.9%
2019403.37+9.1%
2018369.78+10.9%
2017333.45+12.3%
2016296.99+6.8%
2015278.12+6.4%
2014261.43+0.8%
2013259.41−2.0%
2012264.81−4.4%
2011277.00−5.6%
2010293.45−6.9%
2009315.22−8.5%
2008344.44−1.4%
2007349.23+7.8%
2006323.94+17.2%
2005276.32+17.0%
2004236.26+10.4%
2003214.10+3.7%
2002206.39+4.3%
2001197.81+5.3%
2000187.83+2.3%
1999183.62−0.1%
1998183.87+3.8%
1997177.18+2.5%
1996172.88+1.4%
1995170.51+6.6%
1994159.98+9.2%
1993146.50+9.0%
1992134.45+7.8%
1991124.75+10.3%
1990113.09+15.1%
198998.29+0.5%
198897.77+6.7%
198791.63−2.9%
198694.36+3.2%
198591.41−0.3%
198491.65−8.3%
1983100.00n/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 Mason 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: Mason 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
Mason County+4.8%+54.5%+139.6%+141.2%+254.8%+9.1%
Shelton, WA+4.8%+54.5%+139.6%+141.2%+254.8%+9.1%
Washington+1.8%+43.9%+113.0%+137.3%+238.6%+7.9%
United States+2.8%+47.0%+85.0%+79.1%+158.3%+6.3%

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

Building permits in Mason County Unincorporated Area

In the 12 months to August 2026, building permits in Mason County Unincorporated Area authorized 156 housing units. In the 12 months before, permits authorized 173 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 Mason County Unincorporated Area, by month
MonthAll units1 unit2 or more units
Aug 202616160
Jul 202610100
Jun 202612120
May 202612120
Apr 202613130
Mar 202616160
Feb 2026440
Jan 2026770
Dec 202512120
Nov 202520200
Oct 202513130
Sep 202521192
Aug 202515150
Jul 202520200
Jun 202518180
May 202513130
Apr 202514140
Mar 202527252
Feb 202513130
Jan 2025880
Dec 202410100
Nov 202412120
Oct 202410100
Sep 202413130
Housing units authorized in the 12 months to August 2026, by size of building
FigureMason County Unincorporated AreaMason CountyWashingtonUnited States
All units15623938,9111,418,086
In buildings with 1 unit154 (99%)237 (99%)17,298 (44%)888,241 (63%)
In buildings with 2 units221,29434,814
In buildings with 3 or 4 units0061817,298
In buildings with 5 or more units0 (0%)0 (0%)19,701 (51%)477,733 (34%)
Units for each 1,000 residentsn/a3.44.94.1
Change from the 12 months before−9.8%+14.9%+11.4%−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 Mason County Unincorporated Area, by year
YearAll units1 unit2 or more units
20251941904
20242572570
20232582580
20222282280
2021442306136
20202342340
20192322320
20182122066
20171891890
20161571570
20151091090
20141081080
20131161160
20121191190
20111281280
20101311310
20091481408
200823622214
200741439024
200651748730
200559056030
200450847434
200345142922
200240038416
200136034020
200036134516
199937135516
199838136120
199735934514
199639738116
199536335112

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

Where the figures come from

Building permits
US Census Bureau, Building Permits Survey, place files through August 2026, permit office 313000. County, state and national figures from the county and state files.
Price trail
FHFA annual house price index for Mason County, 1983 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 Mason County Unincorporated Area?
In the 12 months to August 2026, 154 units are in buildings with one unit. 2 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 173 housing units in the 12 months before. Permits authorized 156 housing units in the 12 months to August 2026. The count decreased by 9.8% between the two periods.
How many units have permits from 1995?
Permits in Mason County Unincorporated Area authorized 8,970 housing units from 1995 to 2025. The year with the most units is 2005, with 590.