Avenal, CA has a population of 13,590 and is the 3,072nd largest city in the United States. The population density is 700 per sq mi which is 201% higher than the California average and 672% higher than the national average. The median age in Avenal is 32 which is approximately 11% lower than the California average of 36. In Avenal, 39% of the population over 15 years of age are married, 32% speak English and 65% speak Spanish. 59% of Avenal residents were born in California, 7% were born out of state, 1% were born outside of the United States and 34% were foreign born.