21051 ZIP Code: Living in Fork, MD

Updated November 2026 · Data: U.S. Census Bureau, American Community Survey 2020–2024

ZIP code 21051 is in Baltimore County, Maryland, and covers Fork. A small rural area in northeast Baltimore County near Gunpowder Falls State Park and the Long Green Valley. About 172 people live in the 21051 ZIP code area.

21051 at a glance

Figures are Census estimates for ZIP Code Tabulation Area 21051, which closely follows the postal ZIP code. This area has few residents, so housing estimates are not shown because they would be unreliable.

Neighborhoods and communities in 21051

The 21051 ZIP code includes Fork. ZIP code lines don’t always match neighborhood or school boundaries, so confirm the details for any specific address.

Commuting from 21051

Here is how far the center of the 21051 ZIP code is from major job centers and travel hubs. These are straight-line distances; drive times depend on route and traffic.

Living in Baltimore County: what to know

Baltimore County has no incorporated cities, so communities such as this one are governed by the county. Property taxes, schools, police and trash service all run through Baltimore County government.

Public schools in 21051 are run by Baltimore County Public Schools. Assignments go by street address, not ZIP code, so use the district’s school locator for a specific home. To compare schools, see the Maryland State Department of Education Report Card.

For taxes, commuting and lifestyle across the county, read our Baltimore County relocation guide. For parks and trails, see Baltimore County parks.

ZIP codes near 21051

• 21082 – Hydes
• 21087 – Kingsville
• 21013 – Baldwin
• 21057 – Glen Arm
• 21156 – Upper Falls
• 21128 – Perry Hall

21051 ZIP code: frequently asked questions

Sources: U.S. Census Bureau, American Community Survey 5-year estimates 2020–2024 (tables DP03, DP04, DP05) for ZCTA 21051; U.S. Census Bureau TIGERweb ZCTA boundaries. Distances are calculated from the ZCTA’s internal point.