ZIP code
20871
Clarksburg, MD
20871 covers Clarksburg in Montgomery County, with 28,329 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 20871. Methodology
ZIP code map of 20871

About ZIP code 20871
Acceptable cities: Hyattstown
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 20871. Not ACS. Methodology
People in 20871
Race
- White8,496
- Black or African American5,388
- American Indian or Alaska Native88
- Asian10,469
- Native Hawaiian and Pacific Islander8
- Other race1,315
- Two or more races2,793
Hispanic or Latino (any race): 3,404
Age
- Under 104,676
- 10 to 194,864
- 20 to 292,308
- 30 to 394,285
- 40 to 495,298
- 50 to 593,545
- 60 to 692,180
- 70 to 791,017
- 80 and older384
Income and housing in 20871
Education
- High school graduate94.6%
- Bachelor's degree67.6%
- Graduate degree32.3%
Places covering 20871
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Clarksburg92.4%
- Green Valley2.1%
- Ten Mile Creek0.4%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Montgomery County97.9%
- Frederick County2.1%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
5.0% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 20871
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 8,936 | |
| 2006 | 9,991 | |
| 2007 | 11,499 | |
| 2008 | 12,389 | |
| 2009 | 13,859 | |
| 2010 | 14,950 | |
| 2011 | 11,757 | 16,232 |
| 2012 | 12,953 | 17,890 |
| 2013 | 14,393 | 19,910 |
| 2014 | 15,246 | 20,940 |
| 2015 | 16,795 | 22,220 |
| 2016 | 18,388 | 23,940 |
| 2017 | 20,392 | 25,900 |
| 2018 | 20,008 | 27,070 |
| 2019 | 18,628 | 28,210 |
| 2020 | 18,961 | 29,770 |
| 2021 | 26,366 | 30,260 |
| 2022 | 27,420 | 30,920 |
| 2023 | 28,329 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 20871
12 nearest ZIP centroids (any distance)
- 20876Germantown4.4 miPop 26,511 · Income $113,329
- 20872Damascus4.9 miPop 13,138 · Income $132,804
- 20838Barnesville5.3 miPop 409 · Income $223,571
- 21754Ijamsville5.4 miPop 7,439 · Income $179,797
- 20841Boyds5.7 miPop 9,706 · Income $184,276
- 20886Montgomery Village6.4 miPop 34,419 · Income $98,767
- 21770Monrovia6.5 miPop 7,815 · Income $184,464
- 20882Gaithersburg6.7 miPop 13,661 · Income $186,964
- 20842Dickerson8.2 miPop 2,093 · Income $166,389
- 21704Frederick8.3 miPop 19,623 · Income $164,457
- 20899Gaithersburg8.7 miPop 106 · Income $23,917
- 21710Adamstown8.7 miPop 4,901 · Income $164,727
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 20871, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 20871 FAQ
- What city is ZIP code 20871 in?
- 20871 is in Clarksburg, MD.
- What county is 20871 in?
- 20871 is in Montgomery County.
- What is the median household income in 20871?
- The median household income in 20871 is $177,120.
- Which ZIP codes are near 20871?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 20871.