ZIP code
21046
Columbia, MD
21046 covers Columbia in Howard County, with 15,433 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 21046. Methodology
ZIP code map of 21046

About ZIP code 21046
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 21046. Not ACS. Methodology
People in 21046
Race
- White8,039
- Black or African American4,263
- American Indian or Alaska Native28
- Asian1,558
- Native Hawaiian and Pacific Islander5
- Other race563
- Two or more races1,567
Hispanic or Latino (any race): 1,310
Age
- Under 102,027
- 10 to 192,018
- 20 to 292,139
- 30 to 392,505
- 40 to 492,126
- 50 to 592,074
- 60 to 691,837
- 70 to 791,007
- 80 and older290
Income and housing in 21046
Education
- High school graduate97.9%
- Bachelor's degree62.0%
- Graduate degree30.8%
Places covering 21046
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.
- Columbia100.0%
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.
- Howard County100.0%
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
Population history for 21046
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 14,702 | |
| 2006 | 14,036 | |
| 2007 | 14,437 | |
| 2008 | 14,262 | |
| 2009 | 14,554 | |
| 2010 | 14,684 | |
| 2011 | 15,832 | 15,200 |
| 2012 | 15,569 | 15,080 |
| 2013 | 15,940 | 15,100 |
| 2014 | 16,147 | 15,110 |
| 2015 | 16,143 | 15,240 |
| 2016 | 16,178 | 14,950 |
| 2017 | 16,035 | 14,960 |
| 2018 | 15,988 | 15,140 |
| 2019 | 15,655 | 14,910 |
| 2020 | 15,597 | 14,840 |
| 2021 | 15,484 | 14,410 |
| 2022 | 15,894 | 14,500 |
| 2023 | 15,433 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 21046
12 nearest ZIP centroids (any distance)
- 21045Columbia2.2 miPop 40,866 · Income $117,323
- 20763Savage2.7 miPop 2,320 · Income $119,083
- 20794Jessup2.7 miPop 16,182 · Income $105,441
- 20723Laurel3.1 miPop 36,319 · Income $129,870
- 21044Columbia3.2 miPop 44,775 · Income $132,924
- 20701Annapolis Junction3.8 miPop 749 · Income $81,763
- 21075Elkridge5.0 miPop 37,146 · Income $133,321
- 20759Fulton5.3 miPop 6,758 · Income $250,000+
- 21043Ellicott City5.9 miPop 47,134 · Income $141,846
- 21076Hanover6.0 miPop 23,642 · Income $143,409
- 20707Laurel6.0 miPop 36,549 · Income $104,093
- 20724Laurel6.9 miPop 18,669 · Income $109,530
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 21046, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 21046 FAQ
- What city is ZIP code 21046 in?
- 21046 is in Columbia, MD.
- What county is 21046 in?
- 21046 is in Howard County.
- What is the median household income in 21046?
- The median household income in 21046 is $126,549.
- Which ZIP codes are near 21046?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 21046.