Zip lookup · MD

20842
Barnesville, Maryland.

Barnesville, Montgomery County, MD · Washington-Arlington-Alexandria, DC-VA-MD-WV metro · population 2,369

What it costs per month · 20842 $3,834/mo

to buy the typical home at today's mortgage rate — +$1,820 (+90%) since Jan 2020.

What the home itself did
1 year
Up $7,929 +1%
$722,533$730,463 since Sep 2025
5 years
Up $78,112 +12%
$652,351$730,463 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 $4,000 2002 2006 2010 2014 2018 2022 2026 20842 $3,834 United States $1,922
$1,000 $2,000 $3,000 $4,000 2002 2010 2018 2026
  • 20842$3,834
  • United States$1,922

At the last five years' pace, a typical home here doubles in price every 31 years.

Typical home values in zip 20842 rose 1.1% over the past year — in step with the nation.

This zip spans 2 counties: Montgomery County, MD 77% · Frederick County, MD 23%

Typical home value $730,463 as of Sep 2026
+1.1%year on year

Typical home value — 20842

Mid-tier homes, smoothed and seasonally adjusted.

$250,000 $500,000 $750,000 2018 2020 2022 2024 2026 20842 $730,463 Washington $569,857 United States $366,157
$250,000 $500,000 $750,000 2018 2022 2026
  • 20842$730,463
  • Washington$569,857
  • United States$366,157

Within 20 miles

Showing 30 of 57 zips in range — sorting picks from all 57.

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
2.1 20839 Bealsville 158 — $653,359
3.0 20838 Barnesville 306 — $704,561
5.5 20841 Boyds 9,969 — $822,871
6.2 20176 Leesburg 51,471 $2,387 $828,624
6.2 21710 Adamstown 4,661 — $653,366
6.7 20837 Poolesville 6,699 — $718,656
7.4 21777 Point Of Rocks 2,462 — $514,991
8.4 20871 Clarksburg 30,182 $3,062 $624,133
8.8 20874 Germantown 62,738 $1,994 $408,788
9.5 20129 Paeonian Springs 538 — $1,291,862
10.2 21704 Frederick 20,006 $2,994 $644,613
10.3 20876 Germantown 26,406 $2,121 $473,455
10.6 20197 Waterford 1,825 — $1,306,448
10.8 21754 Ijamsville 8,156 — $680,004
11.1 20165 Sterling 34,088 $2,517 $733,387
11.4 21703 Frederick 41,960 $2,296 $410,271
11.5 20878 Gaithersburg 66,115 $2,384 $680,693
11.9 20147 Ashburn 67,692 $2,775 $746,114
12.1 20180 Lovettsville 7,531 — $788,895
12.4 20886 Montgomery Village 34,718 $2,415 $381,090
12.5 20872 Damascus 13,983 — $540,987
13.1 21755 Jefferson 5,909 — $560,040
13.2 21716 Brunswick 7,200 $2,074 $413,043
13.2 20158 Hamilton 4,979 — $970,564
13.4 21770 Monrovia 8,751 — $652,546
13.5 20877 Gaithersburg 38,546 $2,051 $467,760
13.6 20164 Sterling 43,436 $2,811 $584,241
13.7 20175 Leesburg 34,733 $2,485 $827,121
13.7 20879 Gaithersburg 25,264 $1,995 $433,074
14.2 20880 Washington Grove 577 — $610,898

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