Access to the Greeley-Weld County Airport is controlled by a computerized access control system, which uses proximity cards issued to each authorized person for access.  Four hydraulically operated vertical pivot gates provide vehicular access at key locations around the airport, complimented by several pedestrian walk gates which are also activated by the proximity card system.

An Airport Security Plan (ASP) has been adopted by the airport, which outlines procedures and practices for authorized access to the airport, and also identifies several different levels of restricted areas around the airport.  The Airport Security Plan follows the recommended outline and standards of the Transportation Security Administrations Security Guidelines for General Aviation Airports, but also allows for easy access to the airport facilities by pilots and passengers, as well as providing traditional aircraft operations viewing opportunities for the general public, which has been a tradition at general aviation airports.

The Greeley-Weld County Airport is located entirely within the City of Greeley, and the Greeley Police Department has law enforcement jurisdiction at the airport.
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Several live cameras exist at the Greeley-Weld County Airport provide a view of the terminal building aircraft parking apron.