Park Mesa Heights is part of the City of Los Angeles, which is a very diverse community. They have a Park Mesa Heights Community Council in which you can get some further information regarding the demographics of the area. I have attached the link below.
The area has changed a lot over the past several years due to the change in property ownership, whereas, the home prices have been lower, and people wanting to obtain homeownership have moved in, upgrading the homes and having pride of ownership. Also, the City of Los Angeles has made great strides in attempting to bring in businesses and to beautify many of the major areas, like the Crenshaw District.
Take a look at the website.
Good luck and all the best,
Kat Becker, Realtor
Prudential California Realty