Montgomery

Source:

Maryland

Montgomery is a major-metro county in Maryland with 45 ZIP codes, 980,881 people, and top-decile household income among US counties. All data is sourced from the U.S. Census Bureau American Community Survey (ACS) 2023 5-Year Estimates.

National county placement

According to ACS 5-Year Estimates, Montgomery, MD sits among US counties with a top-decile household income, on a major-metro county population base, across a wide multi-ZIP mosaic.

Top 1%
household income vs 3,210 US counties
980,881
combined ZIP population
45
USPS ZIP codes covered
$155,619
avg ZIP median income

Income percentile ranks this county's average ZIP median household income against 3,210 US counties with ACS income on at least one ZIP.

Montgomery lands in the national county income distribution as top-decile household income on major-metro county footing (FIPS 24031, 45 ZIPs, combined population 980,881). Sort the ZIP table by population before treating the county mean as uniform.

High-income counties with wide ZIP mosaics hide sharp internal gradients. The densest ZIP here is 20906 (Silver Spring) with 64,696 residents - open it beside a thin rural code from the table before treating the county mean as uniform. HUD Fair Market Rents and FBI county tables attach to FIPS 24031, so scorecards stay county-keyed while household income stays ZIP-keyed.

Save two ZIPs from the table into your shortlist, then open a compare link - that is the return path a static county summary cannot replace. All figures here come from Census ACS 2023 5-Year Estimates and USPS ZCTA files.

View your shortlist →

45

Total ZIPs

980,881

Total Population

ZIP Codes in Montgomery

Side-by-side: Compare 20906 vs 20878 →

ZIP Code City Population Density
20906 Silver Spring 64,696 2,069
20878 Gaithersburg 62,446 1,100
20874 Germantown 57,367 1,040
20904 Silver Spring 54,612 1,540
20854 Potomac 49,611 567
20902 Silver Spring 48,841 2,487
20850 Rockville 46,340 1,269
20852 Rockville 40,365 1,871
20910 Silver Spring 37,445 3,181
20817 Bethesda 36,240 1,008
20901 Silver Spring 34,832 2,498
20877 Gaithersburg 34,321 2,296
20886 Montgomery Village 33,282 2,745
20853 Rockville 29,673 1,267
20815 Chevy Chase 29,082 2,067
20814 Bethesda 27,642 2,094
20876 Germantown 25,496 843
20832 Olney 24,965 957
20912 Takoma Park 24,807 3,585
20879 Gaithersburg 24,360 1,226
20903 Silver Spring 23,625 2,532
20895 Kensington 19,054 1,808
20905 Silver Spring 18,044 542
20816 Bethesda 16,208 1,791
20855 Derwood 14,295 420
20851 Rockville 14,191 2,316
20882 Gaithersburg 14,063 141
20866 Burtonsville 13,344 729
20871 Clarksburg 13,130 247
20872 Damascus 13,104 243
20841 Boyds 10,460 155
20833 Brookeville 7,735 153
20837 Poolesville 5,789 53
20860 Sandy Spring 2,396 243
20818 Cabin John 1,962 743
20861 Ashton 1,875 189
20842 Dickerson 1,824 13
20896 Garrett Park 906 1,412
20868 Spencerville 790 152
20880 Washington Grove 450 736
20862 Brinklow 343 113
20838 Barnesville 259 37
20812 Glen Echo 255 516
20839 Beallsville 214 17
20899 Gaithersburg 142 694

Frequently Asked Questions

What is the population of Montgomery?

Montgomery has a total population of 980,881 across 45 ZIP codes, based on U.S. Census Bureau ACS 2023 data.

What ZIP codes are in Montgomery?

Montgomery includes 45 ZIP codes: 20906, 20878, 20874, 20904, 20854, 20902, 20850, 20852, 20910, 20817, and more.

Montgomery's figures come from Census ACS 5-Year Estimates (2023), mapped to ZIP codes via the HUD USPS Crosswalk. PlainZIP is not affiliated with the U.S. Census Bureau or any government agency. See our methodology for details.

Related

Compare any two ZIPs side by side

Read our methodology : how this data is sourced, computed, and verified.