Walnut Park does not have a chamber of commerce of its own. Business support for the community comes through Los Angeles County and the chambers of the neighbouring SouthEast LA cities.

Walnut Park is not a city, so there is no city-run event calendar here. Community notices and county services are published by Los Angeles County.

There is no city Instagram account for Walnut Park, because the community does not have a city hall of its own.

There is no city Facebook page for Walnut Park. Neighbourhood news is shared through residents' groups and county channels.

Walnut Park is an unincorporated community in Los Angeles County, so public safety is handled by county agencies rather than a city police department.