In 2023, Johannesburg, CA had a population of 77 people with a median age of 50.1 and a median household income of N/A. Between 2022 and 2023 the population of Johannesburg, CA declined from 94 to 77, a −18.1% decrease and its median household income N/A from N/A to N/A, a N/A% N/A.
The 5 largest ethnic groups in Johannesburg, CA are Asian (Non-Hispanic) (100%), White (Non-Hispanic) (0%), White (Hispanic) (0%), Black or African American (Non-Hispanic) (0%), and Black or African American (Hispanic) (0%).
None of the households in Johannesburg, CA reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
79.2% of the residents in Johannesburg, CA are U.S. citizens.
Most people in Johannesburg, CA drove alone to work, and the average commute time was 26.6 minutes. The average car ownership in Johannesburg, CA was N/A per household.