Woodside, CA has a population of 5,496 and is the 6,070th largest city in the United States. The population density is 469 per sq mi which is 102% higher than the California average and 417% higher than the national average. The median age in Woodside is 50 which is approximately 39% higher than the California average of 36. In Woodside, 71% of the population over 15 years of age are married, 88% speak English and 4% speak Spanish. 54% of Woodside residents were born in California, 30% were born out of state, 1% were born outside of the United States and 15% were foreign born.