| City: | Pasadena, Maryland |
| City Alias: | Lake Shore, Riviera Beach |
| County: | Anne Arundel County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:21:02 AM |
| Population: | No Population Data |
| Area Codes: | 410 / 443 / 667 |
| Classification: | PO Box |
| Coordinates: | 39.1259, -76.5123 |
| Quick Link: |
ZIP 21123 in Pasadena, Maryland serves a compact area with 185 PO Boxes and limited street delivery along two routes: Mountain Road and Rugby Road. The facility operates as a specialized PO Box station within the broader Pasadena postal network, where most street addresses receive mail through the standard delivery ZIP 21122. With 170 business customers and no residential street delivery infrastructure of its own, this ZIP functions primarily as a centralized mail pickup location for customers who prefer or require PO Box service.
The post office's narrow geographic footprint contrasts with typical community ZIPs. Mountain Road accounts for 97 delivery records while Rugby Road has 18, both serving unit-based addresses rather than single-family homes. This suggests the ZIP's street routes handle mail for apartment complexes or business parks rather than traditional residential neighborhoods. The Lake Shore and Riviera Beach communities appear in the ZIP's alternate names, though residents in those areas typically use neighboring ZIPs for their actual street addresses.
With just two streets covering 115 delivery points, all requiring unit numbers, this ZIP's street delivery infrastructure supports multi-unit or commercial properties rather than a traditional residential neighborhood. Mountain Road handles the vast majority of the ZIP's limited street delivery.
ZIP Code 21123 is designated for PO Box delivery only; business establishment and employment data are not available.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 5,578Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 0Source: CBP |
| 1st Quarter Payroll: | $0Source: CBP |
| Annual Payroll: | $0Source: CBP |
| # of Employees: | 0Source: CBP |
ZIP Code 21123 is located in Anne Arundel County, Maryland, within the Baltimore-Columbia-Towson, MD Metropolitan Statistical Area (CBSA 12580) and Maryland's 3rd Congressional District. This Metro area has a population of 2,839,409 people, about 0.00% of whom live in ZIP Code 21123. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Baltimore-Columbia-Towson, MDSource: Census |
| CBSA Number: | 12580Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 2,839,409Source: Census |
| MSA: | Washington-Baltimore, DC-MD-VA-WV CMSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 03Source: USPS |
| Congressional Land Area: | 304.14 sq miSource: Census |
| PMSA: | Baltimore, MD PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 2460475Source: Census |
| Place Name: | Pasadena CDP; MarylandSource: Census |
We could not locate which school district 21123 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on January 1, 2026.