20851
Rockville, Maryland.
Rockville, Montgomery County, MD · Washington-Arlington-Alexandria, DC-VA-MD-WV metro · population 14,946
to buy the typical home at today's mortgage rate — +$1,305 (+88%) since Jan 2020.
- 1 year
- Down $2,603 -0%
- $532,692$530,089 since Sep 2025
- 5 years
- Up $65,133 +14%
- $464,955$530,089 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.
- 20851$2,782
- United States$1,922
At the last five years' pace, a typical home here doubles in price every 26 years.
Typical home values in zip 20851 fell 0.5% over the past year — slower than the nation's +1.2%.
Owning the typical home in zip 20851 runs $1,174/mo more than renting one — the widest that gap has been in this data.
That is $3,732 a month against $2,558 rent: a $2,782 mortgage payment, plus $382 property tax and $568 insurance & upkeep.
Owning vs renting — zip 20851
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.
- Owning all in$3,732
- Renting$2,558
- Mortgage only$2,782
Property tax · $382/mo 0.87% of value a year — the ACS 2020-2024 median bill over the median home value for Montgomery County, MD
Insurance & upkeep · $568/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: Rockville, MD — measured over the city limits, which is a different area from this zip.
Asking rent — 20851
Against the Washington-Arlington-Alexandria, DC-VA-MD-WV metro and the national benchmark.
- 20851$2,558
- Washington$2,407
- United States$1,932
Typical home value — 20851
Mid-tier homes, smoothed and seasonally adjusted.
- 20851$530,089
- Washington$569,857
- United States$366,157
Within 20 miles
Showing 30 of 147 zips in range — sorting picks from all 147.
| 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 |
|---|---|---|---|---|---|
| 1.8 | 20852 | Rockville | 48,180 | $2,295 | $529,391 |
| 2.2 | 20853 | Rockville | 31,851 | $3,057 | $623,829 |
| 3.2 | 20896 | Garrett Park | 932 | — | $1,042,674 |
| 3.3 | 20850 | Rockville | 50,353 | $2,467 | $670,975 |
| 3.6 | 20906 | Silver Spring | 70,595 | $1,979 | $436,799 |
| 4.1 | 20855 | Derwood | 17,279 | $2,493 | $673,748 |
| 4.2 | 20895 | Kensington | 19,184 | $3,111 | $790,306 |
| 4.8 | 20902 | Silver Spring | 54,261 | $2,078 | $529,256 |
| 5.1 | 20814 | Bethesda | 32,795 | $2,852 | $762,088 |
| 5.2 | 20880 | Washington Grove | 577 | — | $610,898 |
| 5.7 | 20877 | Gaithersburg | 38,546 | $2,051 | $467,760 |
| 5.7 | 20832 | Olney | 25,553 | $2,813 | $650,557 |
| 5.7 | 20817 | Bethesda | 37,454 | $3,077 | $1,281,391 |
| 6.2 | 20854 | Potomac | 50,498 | $4,302 | $1,262,996 |
| 6.9 | 20815 | Chevy Chase | 30,505 | $2,801 | $1,150,207 |
| 6.9 | 20910 | Silver Spring | 45,943 | $1,957 | $633,263 |
| 7.0 | 20879 | Gaithersburg | 25,264 | $1,995 | $433,074 |
| 7.0 | 20860 | Sandy Spring | 2,035 | — | $804,824 |
| 7.1 | 20901 | Silver Spring | 36,435 | $2,088 | $582,044 |
| 7.2 | 20878 | Gaithersburg | 66,115 | $2,384 | $680,693 |
| 7.4 | 20905 | Silver Spring | 19,004 | $2,658 | $665,546 |
| 7.5 | 20818 | Cabin John | 1,539 | — | $1,239,976 |
| 7.6 | 20904 | Silver Spring | 58,646 | $1,946 | $576,041 |
| 7.8 | 20812 | Glen Echo | 276 | — | $1,284,292 |
| 8.1 | 20861 | Ashton | 2,890 | — | $946,555 |
| 8.1 | 20886 | Montgomery Village | 34,718 | $2,415 | $381,090 |
| 8.4 | 20015 | Washington | 15,653 | $2,604 | $1,355,977 |
| 8.4 | 20012 | Washington | 17,519 | $2,177 | $789,996 |
| 8.4 | 20816 | Bethesda | 18,140 | $3,215 | $1,277,787 |
| 8.4 | 20903 | Silver Spring | 24,815 | $1,786 | $507,532 |
Coordinates and population from SimpleMaps US Zips (Basic). Rent and home values from Zillow Research.