Zip lookup · MD

21231
Baltimore, Maryland.

Baltimore, Baltimore City, MD · Baltimore-Columbia-Towson, MD metro · population 14,969

What it costs per month · 21231 $1,681/mo

to buy the typical home at today's mortgage rate — +$723 (+75%) since Jan 2020.

What the home itself did
1 year
Down $8,292 -3%
$328,575$320,284 since Sep 2025
5 years
Up $17,960 +6%
$302,323$320,284 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.

$500 $1,000 $1,500 $2,000 2002 2006 2010 2014 2018 2022 2026 21231 $1,681 United States $1,811
$500 $1,000 $1,500 $2,000 2002 2010 2018 2026
  • 21231$1,681
  • United States$1,811

At the last five years' pace, a typical home here doubles in price every 60 years.

Typical home values in zip 21231 fell 4.1% over the past year — slower than the nation's +1.2%.

Asking rents in zip 21231 rose 6.6% over the past year — faster than the nation's +2.7%.

Owning the typical home in zip 21231 runs $91/mo more than renting one. The gap peaked at $293 in Jan 2025.

That is $2,414 a month against $2,323 rent: a $1,681 mortgage payment, plus $390 property tax and $343 insurance & upkeep.

Owning vs renting — zip 21231

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.

$1,000 $1,500 $2,000 $2,500 2018 2020 2022 2024 2026 Owning all in $2,414 Renting $2,323 Mortgage only $1,681
$1,000 $1,500 $2,000 $2,500 2018 2022 2026
  • Owning all in$2,414
  • Renting$2,323
  • Mortgage only$1,681

Property tax · $390/mo 1.46% of value a year — the ACS 2020-2024 median bill over the median home value for Baltimore City, MD

Insurance & upkeep · $343/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: Baltimore, MD — measured over the city limits, which is a different area from this zip.

Asking rent $2,323 as of Sep 2026
+6.6%year on year

Asking rent — 21231

Against the Baltimore-Columbia-Towson, MD metro and the national benchmark.

$1,250 $1,500 $1,750 $2,000 $2,250 2018 2020 2022 2024 2026 21231 $2,323 Baltimore $1,937 United States $1,932
$1,250 $1,500 $1,750 $2,000 $2,250 2018 2022 2026
  • 21231$2,323
  • Baltimore$1,937
  • United States$1,932

Within 20 miles

Showing 30 of 86 zips in range — sorting picks from all 86.

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
1.0 21202 Baltimore 20,683 $1,711 $184,462
1.7 21201 Baltimore 18,307 $1,474 $217,563
1.8 21205 Baltimore 13,013 $1,857 $108,282
2.0 21213 Baltimore 28,058 $1,740 $118,612
2.2 21230 Baltimore 32,977 $2,191 $265,080
2.8 21224 Baltimore 47,465 $2,162 $232,620
2.8 21217 Baltimore 30,792 $1,529 $91,872
3.0 21218 Baltimore 44,014 $1,454 $181,991
3.3 21223 Baltimore 19,572 $1,596 $65,619
3.8 21211 Baltimore 14,969 $2,159 $278,340
4.4 21225 Brooklyn 34,062 $1,416 $222,776
4.5 21216 Baltimore 29,426 $1,547 $113,799
4.6 21206 Baltimore 48,902 $1,607 $218,291
4.7 21214 Baltimore 21,092 $1,450 $254,614
5.3 21229 Baltimore 46,679 $1,528 $170,468
5.4 21239 Baltimore 27,346 $1,477 $211,950
5.4 21222 Dundalk 59,407 $1,391 $222,177
5.4 21210 Baltimore 14,134 $1,750 $480,298
5.7 21212 Baltimore 33,974 $1,686 $335,737
5.7 21227 Halethorpe 34,907 $1,487 $305,120
5.7 21226 Curtis Bay 6,674 $1,454 $313,877
6.3 21237 Rosedale 31,425 $1,763 $313,072
6.3 21215 Baltimore 52,229 $1,312 $158,625
6.8 21090 Linthicum Heights 10,652 $1,986 $430,756
7.1 21209 Baltimore 30,126 $1,754 $444,961
7.3 21207 Gwynn Oak 47,099 $1,439 $287,860
8.1 21234 Parkville 66,334 $1,621 $300,360
8.1 21221 Essex 43,487 $1,685 $290,157
8.2 21060 Glen Burnie 39,730 $1,768 $413,535
8.3 21204 Towson 19,845 $1,943 $590,649

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