“Catholic” means “universal,” and that is an apt description.
Fr. Dwight Longenecker, a local priest with a reputation that extends well beyond the region, explains it better than I could:
We had confirmation at Our Lady of the Rosary parish on Tuesday. What I love about the Catholic Church is her universality. In the congregation were Vietnamese, Palestinians, Nigerians, Poles, Philippinos, Mexicans, El Salvadoreans, French, German and more…why there were even a few converts there too.
We were all united in one church, one faith, one baptism. The bishop was there and our priesthood was united with his and with the gift of Our Lord to the Apostles.
In addition to the ethnic mix there was the socio-economic mix–executives from Michelin and BMW mixing with Mexican immigrants and everyone in between. (Source)
Another measure of the universality of the faith is the number of languages used to celebrate Mass at a given church. The church we attend has Mass in English, Spanish, and, once a month, Polish. Other, larger cities certainly have even more variety.