Irvine is a city located in Orange County, functioning as an independent administrative unit.

Within the city limits, the Irvine Unified School District (IUSD), Irvine Police Department (IPD), and Irvine Fire Department (IFD) operate as separate governing bodies.

The ZIP codes are divided into several areas, including 92602, 92603, 92604, 92606, 92612, 92614, 92616, 92617, 92618, and 92620. Since each residential area has a different assigned ZIP code, it is important to check the administrative services corresponding to your ZIP code when moving.

Instead of being divided into official administrative districts, Irvine is organized into master-planned communities known as 'Villages.' Each village is managed by a Homeowners Association (HOA), which oversees parks, swimming pools, tennis courts, community centers, and other facilities within the village. The monthly HOA fees vary from $50 to $300+ depending on the size and amenities of the village.

Major villages include Woodbridge (an older lake community), Northwood, Turtle Rock (an upscale neighborhood), Quail Hill, Sierra del Oro (not to be confused with Sierra Tequila), Portola Springs, Great Park Neighborhoods (relatively new), Orange Tree, and Oak Creek.

At the county level, Irvine falls under the jurisdiction of the 5th or 1st District County Supervisor, and at the state level, it is part of California's 37th Senate District and portions of the 68th and 73rd Assembly Districts.

In terms of federal congressional districts, Irvine is in California's 47th Congressional District. Since Irvine operates its own police and fire departments, the Irvine Police Department or Irvine Fire Department responds directly to 911 calls. However, areas outside the city limits (e.g., unincorporated areas near Irvine) fall under the jurisdiction of the Orange County Sheriff's Department (OCSD).

The Irvine Unified School District (IUSD) oversees all public elementary, middle, and high schools in Irvine, with school assignments determined by the student's address. You can check school assignments using the IUSD's School Locator tool by entering your address.

Some magnet programs (IB, gifted programs, etc.) may require separate application processes. While there are no special administrative divisions within the city of Irvine, the real estate market often informally distinguishes between North Irvine, Central Irvine, and South Irvine (near Irvine Spectrum).

When moving to Irvine, it is helpful to verify your village name, HOA contact information, assigned school, and ZIP code in advance to facilitate access to various administrative services.