Hillsborough is an incorporated town in San Mateo County, California, in the San Francisco Bay Area. Hillsborough is one of the wealthiest communities in America and has the highest income of places in the United States with populations of at least 10,000. It is located 17 miles (27 km) south of San Francisco on the San Francisco Peninsula, bordered by Burlingame to the north, San Mateo to the east, Highlands-Baywood Park to the south, and Interstate 280 to the west. The population was 11,273 as of 2013. The town is served by Hillsborough City School District.

Hillsborough's landscape is dominated by large homes; the town zoning and subdivision ordinances require a 2,500-square-foot minimum house size and minimum lot size of 0.5 acres . As a result, there are no apartments, condominiums or townhouses in the city limits; however, it is not unusual for the homes along the eastern edge of Hillsborough to face condominiums in neighboring Burlingame, sharing the ZIP code 94010.

The town has no commercial zoning and thus no businesses within the town limits; the only non-residential properties are the town's four public and three private schools, town and county government facilities, a golf course, a country club, and small parks.

According to the United States Census Bureau, the town has a total area of 6.2 square miles, all of it land. The area's considerably winding, hilly topography (unsurprising given the town's name), and impossibility of a grid layout, make Hillsborough notoriously challenging to navigate. Many lots include fairly steep slopes, particularly the western side of the town, with the landscape generally flattening to the east as it descends from the 280 freeway to El Camino Real and the towns of Burlingame and San Mateo.

Two prominent streams drain the mostly wooded slopes of Hillsborough: San Mateo Creek and Cherry Creek. In both cases the upper watersheds are closed-canopy California oak woodlands, with dominant trees of Coast Live Oak, Pacific Madrone and California Bay.

The upper drainage area of San Mateo Creek in Hillsborough contains significant serpentinite outcrops, which are known habitats for several rare plant species including the San Mateo woolly sunflower. Other common plants include toyon, gooseberry, lupine, monkeyflower and coffeeberry. Commonly observed mammals include California mule deer, raccoons, opossum, coyotes, rabbits, squirrels, and skunks.

Hillsborough is bordered by Burlingame to the north, San Mateo to the east, Highlands-Baywood Park to the south, and Interstate 280 to the west.

2010

The 2010 United States Census reported that Hillsborough had a population of 10,825. The population density was 1,748.9 people per square mile. The racial makeup of Hillsborough was 7,178 (66.3%) White, 42 (0.4%) African American, 7 (0.1%) Native American, 3,044 (28.1%) Asian, 23 (0.2%) Pacific Islander, 109 (1.0%) from other races, and 422 (3.9%) from two or more races. Hispanic or Latino of any race were 373 persons (3.4%).

The Census reported that 10,825 people (100% of the population) lived in households, as no other type of residence exists in Hillsborough.

There were 3,693 households, out of which 1,445 (39.1%) had children under the age of 18 living in them, 2,804 (75.9%) were opposite-sex married couples living together, 220 (6.0%) had a female householder with no husband present, 114 (3.1%) had a male householder with no wife present. There were 66 (1.8%) unmarried opposite-sex partnerships, and 34 (0.9%) same-sex married couples or partnerships. 451 households (12.2%) were made up of individuals and 309 (8.4%) had someone living alone who was 65 years of age or older. The average household size was 2.93. There were 3,138 families (85.0% of all households); the average family size was 3.18.

The population was spread out with 2,877 people (26.6%) under the age of 18, 466 people (4.3%) aged 18 to 24, 1,600 people (14.8%) aged 25 to 44, 3,667 people (33.9%) aged 45 to 64, and 2,215 people (20.5%) who were 65 years of age or older. The median age was 47.5 years. For every 100 females there were 94.8 males. For every 100 females age 18 and over, there were 91.9 males.

There were 3,912 housing units at an average density of 632.0 per square mile (244.0/km²), of which 3,490 (94.5%) were owner-occupied, and 203 (5.5%) were occupied by renters. The homeowner vacancy rate was 1.3%; the rental vacancy rate was 4.2%. 10,206 people (94.3% of the population) lived in owner-occupied housing units and 619 people (5.7%) lived in rental housing units.

Hillsborough homes sold in 2011 for a median price of about $1.45 million.

Schools

Hillsborough has its own highly regarded and ranked public elementary and middle school system, but no public high school. High school-aged children can attend one of several schools in the San Mateo Union High School District, generally assigned by residential address. The town is also home to a small number of independent schools. The Hillsborough school district is ranked as the #1 school district in California and one of the top ten school districts in the country.

The Nueva School, a nationally recognized independent school serving gifted and talented students.

• Crocker Middle School, a public middle school, located on Ralston Avenue, named after William H. Crocker.

• West Elementary School, a public elementary school, located on Barbara Way.

• South Elementary School, a public elementary, at 303 El Cerrito.

• North Elementary School, a public elementary, at 545 Eucalyptus Avenue.

• The Bridge School, a school serving students with physical and speech impairments.

• Crystal Springs Uplands School, a college preparatory middle and high school.

For additional info visit Wikipedia: https://en.wikipedia.org/wiki/Hillsborough,_California