Zip lookup · MA

02121
Boston, Massachusetts.

Boston, Suffolk County, MA · Boston-Cambridge-Newton, MA-NH metro · population 29,040

What it costs per month · 02121 $3,258/mo

to buy the typical home at today's mortgage rate — +$1,514 (+87%) since Jan 2020.

What the home itself did
1 year
Down $3,822 -1%
$624,630$620,807 since Sep 2025
5 years
Up $48,573 +8%
$572,234$620,807 since Sep 2021

Monthly payment to buy the typical home

Home value × that month's 30-year mortgage rate, 20% down, principal and interest. This is the line households feel: prices and rates compound each other.

$1,000 $2,000 $3,000 2002 2006 2010 2014 2018 2022 2026 02121 $3,258 United States $1,922
$1,000 $2,000 $3,000 2002 2010 2018 2026
  • 02121$3,258
  • United States$1,922

At the last five years' pace, a typical home here doubles in price every 43 years.

Typical home values in zip 02121 fell 0.6% over the past year — slower than the nation's +1.2%.

Asking rents in zip 02121 rose 1.5% over the past year — slower than the nation's +2.7%.

Owning the typical home in zip 02121 runs $1,036/mo more than renting one. The gap peaked at $1,300 in May 2025.

That is $4,264 a month against $3,228 rent: a $3,258 mortgage payment, plus $341 property tax and $665 insurance & upkeep.

Owning vs renting — zip 02121

The owning line is the typical home's monthly payment at that month's rate, plus property tax and insurance & upkeep; the renting line is the typical asking rent; the grey line is the mortgage payment on its own. Same homes, same months, both ways of paying for a roof.

$3,000 $3,500 $4,000 $4,500 2024 2025 2026 Owning all in $4,264 Renting $3,228 Mortgage only $3,258
$3,000 $3,500 $4,000 $4,500 2024 2025 2026
  • Owning all in$4,264
  • Renting$3,228
  • Mortgage only$3,258

Property tax · $341/mo 0.66% of value a year — the ACS 2020-2024 median bill over the median home value for Suffolk County, MA

Insurance & upkeep · $665/mo insurance, maintenance and repairs together, from the BLS Consumer Expenditure Survey — the national figure for mortgaged homeowners, scaled to this market's home value. BLS publishes the three bundled and they cannot be split.

Both are priced off the same month's home value, so they rise with the market. Neither is a quote — a specific home's bill depends on its assessment, its age and its insurer.

Zillow also publishes an index for the city itself: Boston, MA — measured over the city limits, which is a different area from this zip.

Asking rent $3,228 as of Sep 2026
+1.5%year on year
Typical home value $620,807 as of Sep 2026
-0.6%year on year

Asking rent — 02121

Against the Boston-Cambridge-Newton, MA-NH metro and the national benchmark.

$2,000 $2,500 $3,000 2024 2025 2026 02121 $3,228 Boston $2,987 United States $1,932
$2,000 $2,500 $3,000 2024 2025 2026
  • 02121$3,228
  • Boston$2,987
  • United States$1,932

Typical home value — 02121

Mid-tier homes, smoothed and seasonally adjusted.

$250,000 $500,000 $750,000 2018 2020 2022 2024 2026 02121 $620,807 Boston $725,639 United States $366,157
$250,000 $500,000 $750,000 2018 2022 2026
  • 02121$620,807
  • Boston$725,639
  • United States$366,157

Within 20 miles

Showing 30 of 140 zips in range — sorting picks from all 140.

Miles sorted ascending, activate to sort descending Zip activate to sort by Zip City activate to sort by City Population activate to sort by Population Rent activate to sort by Rent Home value activate to sort by Home value
1.3 02119 Roxbury 27,377 $3,200 $631,962
1.5 02130 Jamaica Plain 40,055 $3,112 $788,944
1.6 02124 Dorchester Center 56,216 $3,045 $669,607
1.7 02125 Dorchester 33,662 $3,160 $637,139
1.9 02120 Roxbury Crossing 15,283 $3,743 $935,642
2.0 02122 Dorchester 23,479 $3,134 $649,001
2.1 02126 Mattapan 26,583 $2,971 $585,491
2.4 02118 Boston 28,946 $3,805 $962,145
2.4 02115 Boston 29,705 $3,185 $901,287
2.4 02131 Roslindale 31,151 $2,874 $703,893
2.7 02445 Brookline 22,560 $3,439 $1,205,297
2.9 02199 Boston 1,292 $5,930 $3,281,260
3.0 02215 Boston 24,581 $3,203 $697,438
3.2 02446 Brookline 31,310 $3,518 $1,049,662
3.2 02127 South Boston 36,769 $3,738 $853,515
3.2 02116 Boston 21,978 $3,412 $1,338,758
3.4 02171 Quincy 20,164 $2,851 $702,530
3.4 02111 Boston 8,407 $3,921 $972,203
3.7 02108 Boston 3,794 $3,869 $1,686,190
3.8 02210 Boston 6,971 $4,455 $1,487,676
3.9 02467 Chestnut Hill 23,001 $3,731 $1,182,233
4.0 02142 Cambridge 4,737 $3,925 $1,311,411
4.0 02139 Cambridge 40,033 $3,379 $990,941
4.0 02110 Boston 2,342 $4,448 $1,422,475
4.0 02136 Hyde Park 37,265 $2,806 $638,889
4.1 02114 Boston 14,418 $3,670 $732,619
4.2 02132 West Roxbury 26,444 $2,830 $792,121
4.2 02134 Allston 17,667 $2,934 $733,753
4.4 02113 Boston 6,385 $2,868 $722,502
4.5 02109 Boston 3,612 $3,757 $951,157

Coordinates and population from SimpleMaps US Zips (Basic). Rent and home values from Zillow Research.