Redwood City is located at 37°29'8" North, 122°13'59" West (37.485833, -122.233056).
According to the United States Census Bureau, the city has a total area of 34.56 mi2 (89.52 km2). 19.48 mi2 (50.45 km2) of it is land and 15.09 mi2 (39.08 km2) of it is covered by water. The total area is 43.65% water.
Redwood City is located in the Pacific Standard Time (PST) timezone, GMT-08:00. It observes Daylight Saving Time (DST).