ZIP code 21012
Where is ZIP code 21012?
Arnold, Maryland
Anne Arundel County · Standard ZIP code
ZIP code 21012 belongs to Arnold, Maryland in Anne Arundel County. 21012 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 410, 443 and 667. About 22,570 people live in the 21012 area, where the median household income is $139,432. The closest ZIP codes are 21409 (Annapolis, 3.1 mi east), 21405 (Annapolis, 3.3 mi west) and 21056 (Gibson Island, 3.8 mi northeast).
| ZIP code | 21012 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Arnold |
| State | Maryland (MD) |
| County | Anne Arundel County |
| Time zone | Eastern Time · now |
| Area codes | 410, 443, 667 |
| Coordinates | 39.0476, -76.4941 map |
| 3-digit prefix | 210 |
Population and income in 21012
| Population | 22,570 · higher than 76% of Maryland ZIP codes |
|---|---|
| People per square mile | 2,308 · higher than 78% of Maryland ZIP codes |
| Median age | 38 years · lower than 73% of Maryland ZIP codes |
| Men / women | 50% / 50% |
| Median household income | $139,432 · higher than 75% of Maryland ZIP codes |
| Income per person | $63,734 |
| Below the poverty line | 3.3% |
| Bachelor’s degree or higher | 58% of adults 25+ |
| Median home value | $563,800 · higher than 77% of Maryland ZIP codes |
| Median rent | $2,166 a month |
| Housing units | 8,542 |
| Households | 8,275 (2.7 people on average) |
| Owners / renters | 86% / 14% |
| Land area | 9.78 sq mi (plus 2.79 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 21012. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 21012
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 21409 | Annapolis, MD | 3.1 mi E | Standard |
| 21405 | Annapolis, MD | 3.3 mi W | Standard |
| 21056 | Gibson Island, MD | 3.8 mi NE | PO Box only |
| 21146 | Severna Park, MD | 4.1 mi NW | Standard |
| 21402 | Annapolis, MD | 4.4 mi S | Standard |
| 21404 | Annapolis, MD | 4.8 mi S | PO Box only |
| 21401 | Annapolis, MD | 5 mi SW | Standard |
| 21122 | Pasadena, MD | 5 mi N | Standard |
| 21032 | Crownsville, MD | 5.3 mi W | Standard |
| 21403 | Annapolis, MD | 6.6 mi S | Standard |
| 21062 | Glen Burnie, MD | 7.4 mi SW | Unique |
| 21123 | Pasadena, MD | 7.4 mi SW | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 21012 or measure the distance to another ZIP code.
How to address mail to 21012
123 MAIN ST
ARNOLD MD 21012
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (21012-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 21012?
- 21012 is a Arnold, Maryland ZIP code.
- What county is 21012 in?
- ZIP code 21012 is in Anne Arundel County, Maryland.
- What time zone is ZIP code 21012 in?
- 21012 is in the Eastern Time zone (America/New_York).
- What area code is 21012?
- Phone numbers in ZIP code 21012 use area codes 410, 443 and 667.
- What is the population of ZIP code 21012?
- About 22,570 people live in ZIP code 21012, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 21012?
- The median household income in 21012 is $139,432 a year, higher than 75% of Maryland ZIP codes.
- What ZIP codes are near 21012?
- The nearest ZIP codes to 21012 are 21409 (Annapolis, 3.1 miles), 21405 (Annapolis, 3.3 miles), 21056 (Gibson Island, 3.8 miles) and 21146 (Severna Park, 4.1 miles).