Canby, CA has a population of 493 and is the 19,634th largest city in the United States. The population density is 217 per sq mi which is 6% lower than the California average and 140% higher than the national average. The median age in Canby is 57 which is approximately 57% higher than the California average of 36. In Canby, 39% of the population over 15 years of age are married, 49% speak English and 46% speak Spanish. 43% of Canby residents were born in California, 26% were born out of state, 0% were born outside of the United States and 31% were foreign born.