Weed, CA has a population of 2,750 and is the 9,249th largest city in the United States. The population density is 575 per sq mi which is 147% higher than the California average and 535% higher than the national average. The median age in Weed is 34 which is approximately 5% lower than the California average of 36. In Weed, 39% of the population over 15 years of age are married, 86% speak English and 10% speak Spanish. 68% of Weed residents were born in California, 26% were born out of state, 1% were born outside of the United States and 6% were foreign born.