Maine · 3 counties · 577,635 residents (2025 est.)
FHFA quarterly index through 2026 Q2Annual index 1976–2025Permits through August 2026
Portland-South Portland (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. The line above is FHFA's standard quarterly all-transactions index for the metropolitan area; the comparison table below uses FHFA's annual CBSA index, which FHFA describes as developmental. The index does not give a dollar value for any home.
Portland-South Portland, ME is a metropolitan statistical area of 3 counties and about 578,000 residents. FHFA's annual index for it begins in 1976 and has risen +1307.5% through 2025.
The standard quarterly index for the area, published through 2026 Q2, is +4.5% on a year earlier and +2.1% on the previous quarter.
Over the ten years to 2025 the annual index rose +115.8% (+8.0% a year), close to Maine at +112.4% and well above the national +85.0%.
From a 2007 peak the index fell −14.0% to 2012, regaining the peak in 2017.
Across its counties, 3,745 housing units were authorised in the 12 months to August 2026, 6.5 per 1,000 residents, +23.4% on the previous 12 months.
+4.5%year to 2026 Q2, quarterly indexUS +3.0%
+4.7%1 year, 2024–2025US +2.8%
+66.9%5 yearsUS +47.0%
+115.8%10 years+8.0% a year annualised
+234.9%since 2000US +158.3%
3,745units permitted, 12 months6.5 per 1,000 residents
FHFA annual all-transactions indexes over identical years.
Decade by decade
Decade
Change
United States
1980s (1980–1990)
+136.0%
+68.2%
1990s (1990–2000)
+22.0%
+33.9%
2000s (2000–2010)
+50.0%
+29.7%
2010s (2010–2020)
+33.8%
+35.5%
2020s so far (2020–2025)
+66.9%
+47.0%
FHFA reports each index with a value of 100 in its base period, the first year the area has enough transactions (1976 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 1976 are not shown.
Peak-to-low declines
Peak
Low
Decline
Peak regained
2007
2012
−14.0%
2017
1989
1994
−10.8%
1999
Building permits across the area
Housing units authorised in the area's 3 counties (OMB July 2023 delineations), summed from county files.
Housing units authorised in the Portland-South Portland, ME area by month, latest 12 monthssingle-family2+ unit buildings
Housing units authorised in the Portland-South Portland, ME area by month, latest 60 monthssingle-family2+ unit buildings
Housing units authorised in the Portland-South Portland, ME area by year, 1995–2025single-family2+ unit buildings
Permits, 12 months to August 2026
This area
Maine
United States
Housing units authorised
3,745
6,830
1,418,086
Units per 1,000 residents
6.5
4.8
4.1
Single-family share
50%
66%
63%
Change on previous 12 months
+23.4%
+8.4%
−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 Portland-South Portland, ME area risen over 10 years?
The FHFA annual index rose +115.8% between 2015 and 2025, about +8.0% a year. Over 20 years: +106.3%; since 2000: +234.9%. The quarterly index is +4.5% on a year earlier as of 2026 Q2.
Which counties in the Portland-South Portland, ME area rose most?
By ten-year change to 2025: Sagadahoc County (+116.8%), Cumberland County (+116.2%) and York County (+115.7%).
What happened to Portland-South Portland, ME prices after 2007?
The index peaked in 2007, fell −14.0% to 2012 and regained the peak in 2017. Nationally: −21.3% from 2007 to 2012.
How many homes are being built in the Portland-South Portland, ME area?
3,745 housing units were authorised across the area's counties in the 12 months to August 2026, 50% of them single-family, 6.5 per 1,000 residents.
Where does this data come from?
FHFA's annual CBSA house price index (developmental, updated March 31, 2026) and its standard quarterly metropolitan index; 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 1976–2025; quarterly metropolitan area index (all-transactions) through 2026 Q2. 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.