| City: | Cavetown, Maryland |
| County: | Washington County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 10:02:08 PM |
| Population: | No Population Data |
| Area Codes: | 227 / 240 / 301 |
| Classification: | PO Box |
| Coordinates: | 39.6444, -77.5864 |
| Quick Link: |
The post office functions as the mail hub for a scattered rural population. With just 2 street routes in the postal database and a delivery mix classified as "Rural," this represents a classic small-town service pattern where distances between homes make individual delivery impractical. The surrounding area connects to Smithsburg (ZIP 21783), which provides the larger geographic context for this postal cluster.
The two street names reflect a small rural crossroads community centered around a historic church, with minimal street infrastructure typical of dispersed agricultural areas in western Maryland.
ZIP Code 21720 supports both business and residential activity. According to the Business Census (2024), there are 7 business establishments, employing about 194 people with an annual payroll of $13,545,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 201Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 7Source: CBP |
| 1st Quarter Payroll: | $3,150,000Source: CBP |
| Annual Payroll: | $13,545,000Source: CBP |
| # of Employees: | 194Source: CBP |
ZIP Code 21720 is located in Washington County, Maryland, within the Hagerstown-Martinsburg, MD-WV Metropolitan Statistical Area (CBSA 25180) and Maryland's 6th Congressional District. This Metro area has a population of 269,140 people, about 0.00% of whom live in ZIP Code 21720. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Hagerstown-Martinsburg, MD-WVSource: Census |
| CBSA Number: | 25180Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 269,140Source: Census |
| MSA: | Washington-Baltimore, DC-MD-VA-WV CMSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 06Source: USPS |
| Congressional Land Area: | 1950.26 sq miSource: Census |
| PMSA: | Hagerstown, MD PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 2414225Source: Census |
| Place Name: | Cavetown CDP; MarylandSource: Census |
We could not locate which school district 21720 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 February 1, 2026.