The City and County of Denver, capital of the U.S. state of Colorado, has 78 official neighborhoods used for planning and administration. The system of neighborhood boundaries and names dates to 1970 when city planners divided the city into 73 groups of one to four census tracts, called "statistical neighborhoods," most of which are unchanged since then. Unlike some other cities, such as Chicago, Denver does not have official larger area designations. Colloquially, names such as Northside and Westside are still in use, but not well-known. Since 2016, Community planners have used a set of 19 planning areas, all of which are groups of statistical neighborhoods, as part of the Area Planning process.

Central

East

North

Northeast

Northwest

South

Southeast

Southwest

West

Non-official neighborhoods

Registered Neighborhood Organizations

In 1979 a Denver ordinance created the Registered Neighborhood Organization system intended to improve resident access to city government. Registered Neighborhood Organizations (RNOs) define their own boundaries and must be open to all residents and property owners within those boundaries. Denver requires RNOs to re-register annually, so the complete list is subject to change; as of 2024, 180 RNOs are included in the city's catalog. RNOs often correspond closely to official neighborhood names and boundaries, however names or boundaries may also derive from non-official neighborhoods, community or business interests, or colloquial usage. A few RNOs encompass large areas, and many RNOs overlap.