| City: | Barstow, Maryland |
| County: | Calvert County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:12:52 AM |
| Population: | No Population Data |
| Area Codes: | 410 / 443 / 667 |
| Classification: | PO Box |
| Coordinates: | 38.5243, -76.6167 |
| Quick Link: |
The surrounding region shows more activity than Barstow itself. Hallowing Point Road accounts for the single street delivery record in the ZIP code, suggesting most residential addresses fall under neighboring ZIP 20678. That's common in rural Maryland, where small post offices serve scattered populations that technically live in different ZIP codes for delivery purposes. The 28 businesses using Barstow addresses rely on PO Boxes for their mail.
Only one street name appears in ZIP 20610 delivery records. Hallowing Point Road references the geographic feature extending into the Patuxent River, typical of Chesapeake Bay area naming conventions.
ZIP Code 20610 supports both business and residential activity. According to the Business Census (2024), there are 3 business establishments, employing about 13 people with an annual payroll of $995,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 97Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 3Source: CBP |
| 1st Quarter Payroll: | $241,000Source: CBP |
| Annual Payroll: | $995,000Source: CBP |
| # of Employees: | 13Source: CBP |
ZIP Code 20610 is located in Calvert County, Maryland, within the Lexington Park, MD Metropolitan Statistical Area (CBSA 30500) and Maryland's 5th Congressional District. This Metro area has a population of 208,163 people, about 0.00% of whom live in ZIP Code 20610. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Lexington Park, MDSource: Census |
| CBSA Number: | 30500Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 208,163Source: Census |
| MSA: | Washington-Baltimore, DC-MD-VA-WV CMSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 05Source: USPS |
| Congressional Land Area: | 1481.24 sq miSource: Census |
| PMSA: | Washington, DC-MD-VA-WV PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | --Source: Census |
| Place Name: | --Source: Census |
We could not locate which school district 20610 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.