City of Seaside, Oregon

Seaside is located at 45°59'35" North, 123°55'15" West (45.993056, -123.921111).

According to the United States Census Bureau, the city has a total area of 4.01 mi² (10.40 km²). 3.86 mi² (9.99 km²) of it is land and 0.16 mi² (0.40 km²) of it is covered by water. The total area is 3.89% water.

Seaside is located in the Pacific Standard Time (PST) timezone, GMT-08:00. It observes Daylight Saving Time (DST).