text: what is the hispanic population in mchenry illinois currently?   like most of chicagoland, mchenry county and the town of mchenry are rapidly changing demographics.  on the border between suburban and rural, these areas are less heavily hispanic than the inner suburbs or the city itself.  on the last census the town of mchenry was just over 7% hispanic; the county about 7.5%.  today both figures are probably closer to 10%.