Baguio (UK: BAG-ee-oh, US: BAH-ghee-oh, -OH, Tagalog: [ˈbaɡjo]), officially the City of Baguio (Ibaloi: Siudad ne Bagiw; Ilocano: Siudad ti Baguio; Tagalog: Lungsod ng Baguio), is a highly urbanized city in the Cordillera Administrative Region, Philippines. According to the 2024 census, it has a population of 368,426 people.
It is known as the "Summer Capital of the Philippines", owing to the city's cool climate relative to the lowlands. With an approximate elevation of 1,500 meters (4,900 feet) above mean sea level, Baguio belongs to the Luzon tropical pine forests ecoregion; the climate is conducive for the growth of mossy plants, orchids and pine trees, to which it attributes its other moniker as the "City of Pines".
Baguio was established as a hill station by the United States in 1900 at the site of an Ibaloi village known as Kafagway. It was the United States' only hill station in Asia.
Baguio is classified as a highly urbanized city (HUC). It is the largest city in Benguet, serving as the provincial capital from 1901 to 1916, but has since been administered independently from the province following its conversion into a chartered city. Baguio is geographically located within the province of Benguet by the Philippine Statistics Authority for its geographical and statistical purposes only. The city is the center of business, commerce, and education in northern Luzon, as well as the most populous and seat of government of the Cordillera Administrative Region.
As of 2025 the City of Baguio has an estimated population of approximately 407,000 residents. This figure reflects a steady annual growth rate of around 1.75% from the previous year. The population has been gradually increasing over the past decade, with notable growth from 366,358 in 2020 to 392,000 in 2023. The city is also part of the larger Baguio Metropolitan Area, which includes surrounding municipalities and has a combined population of about 451,844 as of 2024.
Baguio was called Kafagway by indigenous peoples. The name Baguio originated in the American period and is derived from the Ibaloi word bagiw (moss), which was then Hispanicized as Baguio. A demonym for natives of the city, Ibagiw, is also derived from it. It is also the name for the city's annual arts festival.
Baguio used to be a vast mountain zone with lush highland forests, teeming with various wildlife such as the indigenous deer, cloud rats, Philippine eagles, Philippine warty pigs, and numerous species of flora. The area was a hunting ground of the indigenous peoples, notably the Ibalois and other Igorot ethnic groups. When the Spanish arrived in the Philippines, the area was never fully subjugated by Spain due to the intensive defense tactics of the indigenous Igorots of the Cordilleras.
Igorot oral history states the Benguet upper class, baknang, was founded between 1565 and the early 1600s, by the marriage of a gold trader, Amkidit, and a Kankanaey maiden gold panning in Acupan. Their son, Baruy, discovered a gold deposit in the area, which he developed with hired workers and slaves.
In 1755, the Augustinian Fray Pedro de Vivar established a mission in Tonglo (Tongdo) outside Baguio. Before he was driven out the following year, this rancheria included 220 people, including several baknang families. The Spanish tried to regain the mission in 1759, but were ambushed. This prompted Governor General Pedro Manuel de Arandía Santisteban to send Don Manuel Arza de Urrutia on a punitive expedition, which resulted in the mission being burned to the ground.
During Spanish rule in 1846, the Spaniards established a command post or a comandancia in the nearby town of La Trinidad, and organized Benguet into 31 rancherías, one of which was Kafagway, a wide grassy area where the present Burnham Park is situated. Kafagway was then a minor rancheria consisting of only about 20 houses; most of the lands in Kafagway were owned by a prominent Ibaloi, Mateo Cariño, who served as its chieftain. The Spanish presidencia, which was located at Bag-iw in the vicinity of Guisad Valley was later moved to Cariño's house where the current city hall stands. Bag-iw was the Ibaloi toponym of the town, an Ibaloi term for "moss" which was historically abundant in the area. This name was spelled by the Spaniards as Baguio.
During the Philippine Revolution in July 1899, Filipino revolutionary forces under Pedro Paterno liberated La Trinidad from the Spaniards and took over the government, proclaiming Benguet as a province of the new Philippine Republic. Baguio was converted into a "town", with Mateo Cariño being the presidente (mayor).
When the United States occupied the Philippines after the Spanish–American War, Baguio was selected to become the summer capital of the then Philippine Islands. American zoologist Dean Conant Worcester headed an expedition in 1900 after convincing U.S. Secretary of State Elihu Root to order an expedition to a cool place in the northern mountains of the Philippines. Governor-General William Taft, on his first visit in 1901, noted the "air as bracing as Adirondacks or Murray Bay..." On November 11, 1901, the American colonial government expropriated lands in Baguio owned by the Ibaloi people, who were forced to sell their lands.
In 1903, Filipinos, Japanese and Chinese workers were hired to build Kennon Road, the first road directly connecting Baguio with the lowlands of La Union and Pangasinan. Before this, the only road to Benguet was Naguilian Road, and it was largely a horse trail at higher elevations. Camp John Hay was established in October 1903, after President Theodore Roosevelt signed an executive order setting aside land in Benguet for a military reservation for the United States Army to rest and recuperate from the lowland heat. It was named after Roosevelt's Secretary of State, John Milton Hay.
The Mansion, built in 1908, served as the official residence of the American Governor-General during the summer to escape Manila's heat. The Mansion was designed by architect William E. Parsons based on preliminary plans by architect Daniel Burnham.
Burnham, one of the earliest successful modern city planners, designed the mountain retreat following the tenets of the City Beautiful movement. In 1904, the rest of the city was planned out by Burnham. On September 1, 1909, Baguio was declared as a chartered city and nicknamed the "Summer Capital of the Philippines".
The succeeding period saw further developments of and in Baguio with the construction of Wright Park in honor of Governor-General Luke Edward Wright, Burnham Park in honor of Burnham, Governor Pack Road, and Session Road.
Prior to World War II, Baguio was the summer capital of the Commonwealth of the Philippines, and the home of the Philippine Military Academy. As such, it was very important in military and political terms. Philippine President Manuel Quezon was even in Baguio when the war began.
On December 8, 1941, 17 Japanese bombers attacked Camp John Hay,as part of the first Japanese air raid on Luzon. Baguio was declared an open city in December 27.