The northern edge of Glen Oaks is a line of hills which are part of the terminal moraine of the last glacial period.

[citation needed] The postal ZIP Code zones for this area do not follow political boundaries, even crossing the city line.

The northernmost part of the neighborhood—the North Shore Towers complex—is in the 11005 ZIP code, addressed as Floral Park.

The portion of the neighborhood west of Little Neck Parkway—other than the Queens County Farm Museum—is in the 11426 ZIP code, addressed as Bellerose.

Finally, the central part of the neighborhood is in the 11004 ZIP code, which may be addressed as either Glen Oaks or Floral Park.

Since the ZIP codes cross the city line, they cannot be used as the sole means to determine sales tax rates.

The Queens neighborhoods of Bellerose and Floral Park lie south of Glen Oaks.

The Nassau County villages of Bellerose and Floral Park lie south of the Queens neighborhoods with the same names.

East of Glen Oaks (past Lake Success) is the unincorporated neighborhood of North New Hyde Park.

The right-of-way of the historical Long Island Motor Parkway is now the southernmost edge of the parking lot of Green Meadows Farm.

The route also defines the southern border of the North Shore Towers complex (formerly the Glen Oaks Golf Club).

On December 14, 2020, Sandra Lindsay, a critical care nurse in Glen Oaks made history, as the first person in the United States to receive the Coronavirus Vaccine.

The Glen Oaks branch of the Queens Public Library is located at 256-04 Union Turnpike.

[10] The current building, redesigned by the architects Scott Marble and Karen Fairbanks in 2013, replaced the original library (demolished in 2010).