Guerra is located in South Jim Hogg County, Texas. As of the 2010 census, there were 8,410 households in Guerra. The average size of an occupied household was four people. Of those households, 7,245 were family households. The remaining 917 households were not family households, making up 10.9 percent of the total population. Guerra's population per household was higher than the county average.
According to U.S. Census data, the population in Guerra City is relatively young. The age groups under five years and 20-24 years were larger than the age groups 65 and older. The 35-44 age group represented the largest portion of the population. In contrast, the over sixty-four age group represented a small percentage of the total population. Thus, the population of the City is younger than the surrounding counties.