ZIP codes
48
Montgomery County, MD Demographics & ZIP Codes
Montgomery County, Maryland demographics and median household income by ZIP code — 48 ZIP codes — population 1,068,171 — avg. income $151,216 — avg. home value $710,211. Compare income, housing, and ZIP-level data on US5.
Population
1,068,171
Median household income (avg.)
$151,216
201% of U.S. median
Average home value
$710,211
204% of U.S. median
Average rent
$1,970
169% of U.S. median
Montgomery County demographics
Montgomery County, Maryland covers 48 ZIP codes, with a combined ZIP-area population of about 1,068,171.
Median household income in Montgomery County
The average median household income across ZIP codes in Montgomery County, Maryland is about $151,216 — about 35% above the MD ZIP average ($111,660), and about 101% above the U.S. median ($75,149).
Among ZIPs with income data, 20854 (Potomac) is near the top at about $250,001, while 20899 (Gaithersburg) is near the bottom at about $23,917.
Housing in Montgomery County
For housing in Montgomery County, Maryland, the average median home value is about $710,211 and the average median rent is about $1,970.
The most populous ZIP is 20906 (Aspen Hill) with about 71,216 residents. Use the table below to compare ZIP codes across the county.
ZIP codes in Montgomery County
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 20906 | Aspen Hill | Montgomery County | MD | 71,216 | $92,964 | $440,600 |
| 20878 | Gaithersburg | Montgomery County | MD | 65,236 | $142,062 | $675,200 |
| 20874 | Darnestown | Montgomery County | MD | 62,233 | $109,648 | $385,300 |
| 20904 | Colesville | Montgomery County | MD | 57,244 | $93,322 | $533,500 |
| 20902 | Wheaton | Montgomery County | MD | 53,170 | $111,408 | $531,200 |
| 20850 | Rockville | Montgomery County | MD | 50,365 | $122,691 | $687,200 |
| 20854 | Potomac | Montgomery County | MD | 49,694 | $250,001 | $1,105,300 |
| 20852 | North Bethesda | Montgomery County | MD | 47,857 | $121,496 | $646,100 |
| 20910 | Silver Spring | Montgomery County | MD | 45,096 | $107,994 | $690,900 |
| 20877 | Gaithersburg | Montgomery County | MD | 39,068 | $86,103 | $462,500 |
| 20817 | Bethesda | Montgomery County | MD | 37,738 | $240,104 | $1,142,300 |
| 20901 | Silver Spring | Montgomery County | MD | 37,338 | $127,133 | $571,300 |
| 20886 | Montgomery Village | Montgomery County | MD | 34,419 | $98,767 | $366,400 |
| 20853 | Aspen Hill | Montgomery County | MD | 31,438 | $157,168 | $605,800 |
| 20815 | Chevy Chase | Montgomery County | MD | 31,269 | $198,243 | $1,230,700 |
| 20814 | Bethesda | Montgomery County | MD | 30,822 | $150,401 | $976,500 |
| 20871 | Clarksburg | Montgomery County | MD | 28,329 | $177,120 | $628,800 |
| 20876 | Germantown | Montgomery County | MD | 26,511 | $113,329 | $456,500 |
| 20879 | Flower Hill | Montgomery County | MD | 26,120 | $105,109 | $433,500 |
| 20832 | Olney | Montgomery County | MD | 25,766 | $166,892 | $601,300 |
| 20903 | Hillandale | Montgomery County | MD | 25,540 | $77,349 | $467,900 |
| 20912 | Takoma Park | Montgomery County | MD | 25,428 | $82,097 | $671,400 |
| 20895 | South Kensington | Montgomery County | MD | 19,042 | $169,527 | $744,000 |
| 20905 | Cloverly | Montgomery County | MD | 18,268 | $155,023 | $640,400 |
| 20816 | Bethesda | Montgomery County | MD | 18,081 | $231,284 | $1,166,100 |
| 20855 | Redland | Montgomery County | MD | 16,557 | $147,708 | $614,900 |
| 20866 | Burtonsville | Montgomery County | MD | 16,499 | $134,682 | $434,400 |
| 20851 | Rockville | Montgomery County | MD | 14,660 | $113,951 | $523,800 |
| 20882 | Damascus | Montgomery County | MD | 13,661 | $186,964 | $705,800 |
| 20872 | Damascus | Montgomery County | MD | 13,138 | $132,804 | $478,300 |
| 20841 | Ten Mile Creek | Montgomery County | MD | 9,706 | $184,276 | $771,400 |
| 20833 | Olney | Montgomery County | MD | 7,868 | $203,631 | $762,200 |
| 20837 | Poolesville | Montgomery County | MD | 6,605 | $191,927 | $701,000 |
| 20861 | Ashton-Sandy Spring | Montgomery County | MD | 3,020 | $176,094 | $956,200 |
| 20842 | — | Montgomery County | MD | 2,093 | $166,389 | $709,300 |
| 20860 | Ashton-Sandy Spring | Montgomery County | MD | 2,062 | — | $665,000 |
| 20818 | Cabin John | Montgomery County | MD | 1,602 | $221,392 | $1,273,300 |
| 20896 | Garrett Park | Montgomery County | MD | 890 | $250,001 | $994,200 |
| 20880 | Washington Grove | Montgomery County | MD | 590 | $160,417 | $594,200 |
| 20838 | Barnesville | Montgomery County | MD | 409 | $223,571 | $807,100 |
| 20862 | Ashton-Sandy Spring | Montgomery County | MD | 393 | $242,721 | $804,200 |
| 20868 | Burtonsville | Montgomery County | MD | 384 | $109,554 | $564,800 |
| 20812 | Glen Echo | Montgomery County | MD | 314 | $195,000 | $1,128,500 |
| 20889 | Bethesda | Montgomery County | MD | 210 | — | — |
| 20839 | — | Montgomery County | MD | 116 | $101,250 | $900,000 |
| 20899 | Gaithersburg | Montgomery County | MD | 106 | $23,917 | — |
| 20892 | Bethesda | Montgomery County | MD | — | — | — |
| 20894 | Bethesda | Montgomery County | MD | — | — | — |
Frequently asked questions
What are the demographics of Montgomery County?
Montgomery County, Maryland has a combined ZIP-area population of about 1,068,171 across 48 ZIP codes. Browse the ZIP table for population, income, and housing by code.
What is the median household income in Montgomery County?
The average median household income across ZIP codes in Montgomery County, Maryland is about $151,216, about 35% above the state ZIP average ($111,660), and about 101% above the U.S. median ($75,149). Average median home value is about $710,211. Among ZIPs with data, 20854 (Potomac) is near the top ($250,001) and 20899 (Gaithersburg) is near the bottom ($23,917).
How many ZIP codes are in Montgomery County?
Montgomery County, Maryland includes 48 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Montgomery County?
This page lists ZIP codes in Montgomery County, Maryland with population, median household income, and home value. Select a ZIP for a full demographics profile.