21723 ZIP Code – Cooksville, Maryland
21723 is a small ZIP code in Cooksville, Maryland, part of Howard County with a population of approximately 689 residents. The median household income is $250,001 — well above the Maryland average and well above the national average. Median home values of $852,400 are well above the national average, with 95.3% owner-occupied housing (increasing). Housing consists of 100% single-family (increasing).
86.0% of adults hold a bachelor's degree or higher, well above the U.S. average. At 41.7, the median age is near the national figure. The surrounding area includes ZIP codes 21794, 21797, 21738.
ZIP Code 21723 Data
Population
689
Median Household Income
$250,000+
Median Home Value
$852,400
Median Rent
Not provided
Median Age
41.7
Unemployment Rate
0.0%
Poverty Rate
0.0%
Bachelor's Degree or Higher
86.0%
County
Howard County
State
Maryland
See more demographics for:
ZIP 21723 vs. Maryland vs. U.S.
| Metric | ZIP 21723 | MD Avg. | U.S. Avg. |
|---|---|---|---|
| Population | 689 | 13k | 10k |
| Median Household Income | $250k | $107k | $73k |
| Median Home Value | $852k | $404k | $258k |
| Median Rent | — | $1,552 | $1,088 |
| Median Age | 41.7 | 43.5 | 43.2 |
| Unemployment Rate | 0.0% | 5.0% | 5.0% |
| Poverty Rate | 0.0% | 9.4% | 13.3% |
| Bachelor's Degree or Higher | 86.0% | 37.6% | 26.9% |
Demographics Charts
Race & Ethnicity
Gender
Education Level (adults 25+)
Nearby ZIP Codes
- 21794 – West Friendship
- 21797 – Woodbine
- 21738 – Glenwood
- 21737 – Glenelg
- 21784 – Sykesville
- 21104 – Marriottsville
- 21036 – Dayton
- 21042 – Ellicott City
- 21163 – Woodstock
- 20833 – Brookeville
Nearby ZIP Code Comparison
| ZIP Code | City | Population | Median Income |
|---|---|---|---|
| 21794 | WEST FRIENDSHIP | 2,309 | $191,458 |
| 21797 | WOODBINE | 9,034 | $179,271 |
| 21738 | GLENWOOD | 3,786 | $239,821 |
| 21737 | GLENELG | 2,406 | $250,000+ |
| 21784 | SYKESVILLE | 37,219 | $138,923 |