
Menlo Park
- County:
- San Mateo County
- County Seat:
- No
- Area (mi²):
- 9.99
- State:
- California
Menlo Park is a city located in San Mateo County, California. Menlo Park has a 2025 population of 30,356. Menlo Park is currently declining at a rate of -2.15% annually and its population has decreased by -9.9% since the most recent census, which recorded a population of 33,690 in 2020.
The average household income in Menlo Park is $339,415 with a poverty rate of 5.06%. The median age in Menlo Park is 38.5 years: 38.7 years for males, and 38.3 years for females.