ZIP code
21723
Cooksville, MD
21723 covers Cooksville in Howard County, with 587 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 21723. Methodology
ZIP code map of 21723
About ZIP code 21723
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 21723. Not ACS. Methodology
People in 21723
Race
- White598
- Black or African American100
- Asian168
- Other race5
- Two or more races66
Hispanic or Latino (any race): 49
Age
- Under 1093
- 10 to 19193
- 20 to 2990
- 30 to 3955
- 40 to 49173
- 50 to 59186
- 60 to 6972
- 70 to 7955
- 80 and older20
Income and housing in 21723
Education
- High school graduate100.0%
- Bachelor's degree86.0%
- Graduate degree34.8%
Places covering 21723
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.
No place overlap rows for this ZIP.
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
100.0% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 21723
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 890 | |
| 2006 | 833 | |
| 2007 | 891 | |
| 2008 | 871 | |
| 2009 | 858 | |
| 2010 | 867 | |
| 2011 | 821 | 892 |
| 2012 | 745 | 900 |
| 2013 | 628 | 880 |
| 2014 | 631 | 910 |
| 2015 | 690 | 920 |
| 2016 | 640 | 890 |
| 2017 | 640 | 940 |
| 2018 | 893 | 1,020 |
| 2019 | 759 | 1,020 |
| 2020 | 648 | 1,000 |
| 2021 | 725 | 990 |
| 2022 | 689 | 1,010 |
| 2023 | 587 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 21723
12 nearest ZIP centroids (any distance)
- 21794West Friendship2.9 miPop 2,326 · Income $223,833
- 21797Woodbine3.5 miPop 8,772 · Income $185,435
- 21738Glenwood3.6 miPop 3,668 · Income $230,429
- 21104Marriottsville5.0 miPop 5,786 · Income $199,803
- 21784Sykesville5.2 miPop 37,813 · Income $141,228
- 21737Glenelg5.7 miPop 2,384 · Income $250,000+
- 21036Dayton6.5 miPop 2,162 · Income $170,313
- 21042Ellicott City6.8 miPop 43,021 · Income $190,504
- 21163Woodstock8.3 miPop 7,031 · Income $131,154
- 21029Clarksville8.3 miPop 13,783 · Income $250,000+
- 20833Brookeville8.8 miPop 7,868 · Income $203,631
- 21771Mount Airy9.5 miPop 32,827 · Income $154,844
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 21723, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
Default is 2 miles. Distances are between ZIP centroids. Widen the radius if nothing is in range.
ZIP code 21723 FAQ
- What city is ZIP code 21723 in?
- 21723 is in Cooksville, MD.
- What county is 21723 in?
- 21723 is in Howard County.
- What is the median household income in 21723?
- The median household income in 21723 is $250,000+.
- Which ZIP codes are near 21723?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 21723.