ZIP code 21029
Where is ZIP code 21029?
Clarksville, Maryland
Howard County · Standard ZIP code
ZIP code 21029 belongs to Clarksville, Maryland in Howard County. 21029 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Eastern Time zone and uses area codes 227, 240, 301, 410, 443 and 667. About 13,607 people live in the 21029 area, where the median household income is $243,542. The closest ZIP codes are 21041 (Ellicott City, 1.7 mi north), 21150 (Simpsonville, 1.7 mi north) and 20777 (Highland, 2.2 mi southwest).
| ZIP code | 21029 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Clarksville |
| State | Maryland (MD) |
| County | Howard County |
| Time zone | Eastern Time · now |
| Area codes | 227, 240, 301, 410, 443, 667 |
| Coordinates | 39.2125, -76.9515 map |
| 3-digit prefix | 210 |
Population and income in 21029
| Population | 13,607 · higher than 65% of Maryland ZIP codes |
|---|---|
| People per square mile | 804 · higher than 63% of Maryland ZIP codes |
| Median age | 43.1 years · higher than 57% of Maryland ZIP codes |
| Men / women | 51% / 50% |
| Median household income | $243,542 · higher than 98% of Maryland ZIP codes |
| Income per person | $89,689 |
| Below the poverty line | 1.1% |
| Bachelor’s degree or higher | 81% of adults 25+ |
| Median home value | $912,100 · higher than 96% of Maryland ZIP codes |
| Median rent | $3,501 a month |
| Housing units | 4,124 |
| Households | 4,056 (3.35 people on average) |
| Owners / renters | 94% / 6.4% |
| Land area | 16.92 sq mi (plus 0.33 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 21029. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 21029
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 21041 | Ellicott City, MD | 1.7 mi N | PO Box only |
| 21150 | Simpsonville, MD | 1.7 mi N | PO Box only |
| 20777 | Highland, MD | 2.2 mi SW | Standard |
| 21036 | Dayton, MD | 2.8 mi NW | Standard |
| 21044 | Columbia, MD | 3.9 mi E | Standard |
| 20862 | Brinklow, MD | 4 mi SW | Standard |
| 20759 | Fulton, MD | 4.5 mi S | Standard |
| 21737 | Glenelg, MD | 4.7 mi NW | Standard |
| 20861 | Ashton, MD | 4.8 mi SW | Standard |
| 21794 | West Friendship, MD | 5.6 mi N | Standard |
| 21738 | Glenwood, MD | 5.7 mi NW | Standard |
| 20860 | Sandy Spring, MD | 6 mi SW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 21029 or measure the distance to another ZIP code.
How to address mail to 21029
123 MAIN ST
CLARKSVILLE MD 21029
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (21029-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 21029?
- 21029 is a Clarksville, Maryland ZIP code.
- What county is 21029 in?
- ZIP code 21029 is in Howard County, Maryland.
- What time zone is ZIP code 21029 in?
- 21029 is in the Eastern Time zone (America/New_York).
- What area code is 21029?
- Phone numbers in ZIP code 21029 use area codes 227, 240, 301, 410, 443 and 667.
- What is the population of ZIP code 21029?
- About 13,607 people live in ZIP code 21029, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 21029?
- The median household income in 21029 is $243,542 a year, higher than 98% of Maryland ZIP codes.
- What ZIP codes are near 21029?
- The nearest ZIP codes to 21029 are 21041 (Ellicott City, 1.7 miles), 21150 (Simpsonville, 1.7 miles), 20777 (Highland, 2.2 miles) and 21036 (Dayton, 2.8 miles).