FHFA annual index 1991–2025Developmental CBSA indexPermits through August 2026
Butte-Silver Bow (100 = first year)United States, rebased to the same startNBER recession
FHFA notes: The FHFA HPI is a broad measure of the movement of single-family house prices. The FHFA HPI is a weighted, repeat-sales index, meaning that it measures average price changes in repeat sales or refinancings on the same properties. FHFA describes its annual CBSA indexes as developmental and subject to revision. The index does not give a dollar value for any home.
Butte-Silver Bow, MT is a micropolitan statistical area of 1 county and about 36,000 residents. FHFA's annual index for it begins in 1991 and has risen +409.7% through 2025.
Over the ten years to 2025 the annual index rose +127.2% (+8.6% a year), well above Montana at +105.0% and well above the national +85.0%.
From a 2008 peak the index fell −7.5% to 2011, regaining the peak in 2016.
Across its counties, 116 housing units were authorised in the 12 months to August 2026, 3.2 per 1,000 residents, +18.4% on the previous 12 months.
+3.9%1 year, 2024–2025US +2.8%
+71.4%5 yearsUS +47.0%
+127.2%10 years+8.6% a year annualised
+268.6%since 2000US +158.3%
116units permitted, 12 months3.2 per 1,000 residents
FHFA annual all-transactions indexes over identical years.
Decade by decade
Decade
Change
United States
2000s (2000–2010)
+54.4%
+29.7%
2010s (2010–2020)
+39.2%
+35.5%
2020s so far (2020–2025)
+71.4%
+47.0%
FHFA reports each index with a value of 100 in its base period, the first year the area has enough transactions (1991 here). A decade's change is the index at the end of the decade divided by the index at the start, so it does not depend on the base year; the United States column covers the same years. Decades before 1991 are not shown.
Peak-to-low declines
Peak
Low
Decline
Peak regained
2008
2011
−7.5%
2016
Building permits across the area
Housing units authorised in the area's county (OMB July 2023 delineations), summed from county files.
Housing units authorised in the Butte-Silver Bow, MT area by month, latest 12 monthssingle-family2+ unit buildings
Housing units authorised in the Butte-Silver Bow, MT area by month, latest 60 monthssingle-family2+ unit buildings
Housing units authorised in the Butte-Silver Bow, MT area by year, 1995–2025single-family2+ unit buildings
Permits, 12 months to August 2026
This area
Montana
United States
Housing units authorised
116
5,457
1,418,086
Units per 1,000 residents
3.2
4.8
4.1
Single-family share
63%
50%
63%
Change on previous 12 months
+18.4%
+4.9%
−0.1%
Counties in the area
Ranked by ten-year change in FHFA's county index to 2025; permits are the latest 12 months.
How much have home values in the Butte-Silver Bow, MT area risen over 10 years?
The FHFA annual index rose +127.2% between 2015 and 2025, about +8.6% a year. Over 20 years: +207.4%; since 2000: +268.6%.
Which counties in the Butte-Silver Bow, MT area rose most?
By ten-year change to 2025: Silver Bow County (+127.2%).
What happened to Butte-Silver Bow, MT prices after 2007?
The index peaked in 2008, fell −7.5% to 2011 and regained the peak in 2016. Nationally: −21.3% from 2007 to 2012.
How many homes are being built in the Butte-Silver Bow, MT area?
116 housing units were authorised across the area's counties in the 12 months to August 2026, 63% of them single-family, 3.2 per 1,000 residents.
Where does this data come from?
FHFA's annual CBSA house price index (developmental, updated March 31, 2026); Census Bureau building permits summed over member counties (OMB July 2023 delineations) through August 2026; vintage 2025 population estimates.
Provenance
Index: Federal Housing Finance Agency, annual house price index for core based statistical areas (all-transactions, developmental), last updated March 31, 2026, values 1991–2025. Permits: Census Bureau Building Permits Survey county files through August 2026, summed over member counties from OMB's July 2023 delineations. Population: Census Bureau vintage 2025 estimates. Public domain. Corrections · FHFA HPI datasets.