The Village of Key Biscayne, incorporated on June 18, 1991, is located in the center 1.25 square miles of a four-mile-long, two-mile-wide barrier island between the Atlantic Ocean and Biscayne Bay. The Village is bordered to the north by Miami-Dade County's Crandon Park and to the south by Bill Baggs Cape Florida State Park. The island is connected via causeway to the City of Miami on the mainland, approximately seven miles away.

Of the 6,318 residential units within the Village, 1,296 are single-family homes and 5,022 are multi-family units. The Village borders nearly 30 acres of pristine Atlantic beach, has five public parks, and enjoys a full-service Community Center with gymnasium and pool. The Village Green contains a multi-use open fields, a half-mile jogging course, a tot lot with interactive splash fountain, a community bandstand, restrooms and small shade pavilion.

The Lake Park, nearly one acre in size, features a small shade pavilion overlooking the lake. Ocean Park, recently completed, features native landscaping, a palm plaza, a large shade pavilion, and restrooms with shower facilities. Calusa Park, is at the south end of Crandon Park, abouts the Village and acres and features four public tennis courts and a multi-purpose recreation building. The playing fields and basketball courts at St. Agnes Academy are used by the Village under a shared-use agreement.

The Village of Key Biscayne has a Council-Manager form of government. The Village Council, the elected governing body, appropriates funds and determines policy, and includes the Mayor, Vice Mayor and five Council Members. The Village Council appoints a Village Manager, Village Clerk and Village Attorney.

The Key Biscayne K-8 Center provides public education for children in kindergarten through 8th grade. A pre-kindergarten program also is available. Graduates proceed to Coral Gables Senior High School on the mainland. Students can apply to public magnet schools throughout the Miami-Dade County School District for elementary, middle and senior high admissions.