In October 1981 the average 30-year fixed mortgage in America carried a rate of 18.63%. In January 2021 it carried 2.65%. Those two weeks are forty years apart, which is less than the length of a working life, and between them sits every argument anybody is currently having about whether now is a terrible time to buy a house.
Freddie Mac has published this survey every week since April 1971, when the rate was 7.33%. That is 2,888 weekly readings, and it is the longest continuous record of what borrowing to buy a house has actually cost. The latest reading, from July 2026, is 6.66%.
One thing to be clear about before any of the numbers below mean anything. This is a national survey. There is no separate published series for Massachusetts, and anyone quoting you "the Massachusetts rate" for 1994 is quoting the national one with a local label on it. What is local is the price of the house, and that is where the arithmetic gets interesting.
The 30-Year Fixed Rate, Weekly Since 1971
6.66%Week of July 2026. Hover to read any week.
The Same House, Six Different Decades
Here is the exercise that makes the record concrete. Take the median single-family home across the 101 towns of Western Massachusetts, assessed at $338,000. Put twenty percent down, which leaves $270,400 to borrow over thirty years. Now run that same loan at each decade's average rate.
What the Same Loan Cost, Decade by Decade
Download CSV, same columns, same definitions
Monthly principal and interest on $270,400 over 30 years, at the average 30-year fixed rate in each decade of the Freddie Mac survey. The loan is identical in every row. Only the rate changes. Property tax, insurance and any mortgage insurance are excluded.
| Decade | Average Rate | Range | Payment at the Average |
|---|---|---|---|
| 1970s | 8.90% | 7.23% to 12.90% | $2,156 |
| 1980s | 12.71% | 9.03% to 18.63% | $2,929 |
| 1990s | 8.12% | 6.49% to 10.67% | $2,006 |
| 2000s | 6.29% | 4.71% to 8.64% | $1,672 |
| 2010s | 4.09% | 3.31% to 5.21% | $1,305 |
| 2020s | 5.35% | 2.65% to 7.79% | $1,509 |
What These Columns Mean
- Decade
- Calendar decade of the weekly survey.
- Average Rate
- Mean of every weekly 30-year fixed reading published in that decade.
- Range
- Lowest and highest weekly reading in the decade.
- Payment at the Average
- Monthly principal and interest on $270,400 borrowed over 30 years at that decade's average rate. Tax and insurance are not included.
Cite: RE413. “What the Same Loan Cost, Decade by Decade.” Updated August 5, 2026. https://www.re413.com/news/mortgage-rates-history-massachusetts/, underlying sources at https://www.re413.com/sources/.
The 1980s row is the one people find hard to believe. At that decade's average, the payment on this ordinary house runs $2,929 a month in principal and interest alone. At the 2010s average it is $1,305. Same house, same loan, same thirty years, and the monthly cost differs by a factor of well over two.
Why 2021 Broke Everyone's Sense of Normal
The trough in January 2021 was the lowest rate in the entire history of the survey, and a very large number of people bought or refinanced into it. That is the reference point almost every buyer now carries around, and it is the least representative week in fifty-five years of data.
Measured against the whole record, today's 6.66% is unremarkable. It is below the 1970s average, well below the 1980s, below the 1990s, and close to the 2000s. It only feels punishing because it is being compared with a number that had never happened before and has not happened since.
The cost of that comparison is real, though, and worth stating exactly. On this loan, the difference between 2.65% and 6.66% is $648 a month, which over the full term is $233,280 in additional interest. That is not a rounding error and nobody should pretend it is. It is also the reason so few houses are for sale: an owner sitting on a sub-three percent loan gives it up the moment they move, and a great many of them have decided not to move.
The Rate Is Not The Payment, And The Payment Is Not The Cost
Three things get conflated in almost every conversation about this, and separating them is most of what a buyer here needs.
- The rate is national. The price is not. A buyer in Boston and a buyer in Adams face the same rate sheet and wildly different loan sizes. Rate movements hit the expensive market harder in dollars, which is why a national rate story lands differently in this region than the coverage suggests.
- The payment is not the housing cost. Principal and interest are one line. Property tax is another, and in Massachusetts it varies more between neighbouring towns than most buyers expect. Two identical houses ten miles apart can differ by thousands a year before the mortgage is even considered. Our breakdown of the rates town by town covers where that lands, and the tax calculator runs the figure for any price in any of the 101 towns.
- A rate is refinanceable. A price is not. This is the asymmetry that matters and it cuts against the instinct to wait. If you buy at a high rate and rates fall, you can refinance. If you wait for rates to fall and prices rise while you wait, nothing lets you go back and buy at the old price.
What The Record Does Not Tell You
It does not tell you where rates go next, and the honest version of that sentence has no qualifiers attached. The survey went from 2.65% to above six percent in under two years, having spent the previous decade averaging 4.09%. Anyone who claims to have called that is telling you about hindsight.
What it does tell you is the range. The 30-year fixed has spent fifty-five years between 2.65% and 18.63%, and the great majority of that time well inside those ends. A buyer treating anything above five percent as a historical aberration is working from a sample of one decade. A buyer treating the current level as normal is reading the same record the lenders are.
If you are working out what you can carry here rather than what the survey says, start with what a given budget actually buys in this region, then price the tax line for the specific town, then apply the rate. In that order. The rate is the input people obsess over and the one they have the least control of.
Sources
- Freddie Mac, Primary Mortgage Market Survey. The weekly average 30-year fixed commitment rate since April 1971. A national average, not a Massachusetts figure.
- MassGIS standardized assessors' parcels. The regional median single-family assessed value used in the payment illustration.
"Figures through" is the period the publisher's data describes; "checked" is only when we last asked. The full sourcing: sources and method.