Hillsboro (/ˈhɪlzbəroʊ/) is the fifth-largest city in the U.S. state of Oregon and is the county seat of Washington County. Lying in the Tualatin Valley on the west side of the Portland metropolitan area, the city hosts many high-technology companies, such as Intel, that comprise what has become known as the Silicon Forest. At the 2010 Census, the city’s population was 91,611.
Hillsboro is located at 45°31′N 122°59′W / 45.517°N 122.983°W / 45.517; -122.983 (Hillsboro, Oregon). The United States Census Bureau reports the city has a total area of 21.6 square miles (55.9 km), all of which is land. In 2013, Hillsboro itself reported an area of 23.88 square miles (61.8 km), equivalent to 15,283 acres (61.8 km). The city is located in the Tualatin Valley, and the Tualatin River forms part of the southern city limits. The city’s terrain is fairly level, consistent with an agricultural past and the farms still in operation. Hillsboro is about 17 miles (27 km) west of Portland and immediately west of Beaverton, at an elevation of 194 feet (59 m) above sea level. In addition to the Tualatin River, streams include Dairy Creek, McKay Creek, Rock Creek, Dawson Creek, and Turner Creek. Neighboring communities in addition to Beaverton are Aloha, Cornelius, North Plains, Reedville, Scholls, and West Union.
Hillsboro’s street system differs from many others in the county. Most cities in Washington County use a numbering system and cardinal direction orientation based on a grid that begins at the Willamette River in downtown Portland, which was originally part of Washington County. For example, the street names in Beaverton generally include Southwest (SW) prefixes because Beaverton lies in the southwest quadrant of the Portland grid. In Hillsboro, some county road names and addresses conform to the Portland grid instead of Hillsboro’s internal cardinal direction grid, and the city has been working to make addresses and streets within Hillsboro conform to the internal grid.
The internal grid in Hillsboro centers on the downtown intersection of Main Street, which runs east–west, and First Avenue, which runs north–south. Most addresses within the city include a quadrant prefix: NW, NE, SW, or SE. Main Street is simply designated as East Main or West Main, and First Avenue is only North First or South First. Addresses on the streets’ south side and the avenues’ east side have even numbers, while odd numbers are on the opposite side. Hillsboro’s street system contains 20 blocks per mile (12.5 blocks per kilometer).
North–south through roadways are called avenues, while east–west roadways are called streets. All cul-de-sacs are named as either places or courts. Roads that curve can be named drives. Non-city streets may not conform to these naming conventions.
The city is divided into eight planning areas, each of which contains several neighborhoods. The east planning area contains the Tanasbourne neighborhood and Oregon Health & Science University’s West Campus. The northeast planning area includes the Orenco, Orenco Station, Airport, and West Union neighborhoods. Jackson School, Sunrise, and Glencoe neighborhoods lie in the northwest area, and the Dennis, Garibaldi, and Connell neighborhoods are in the west area. The central area includes the Downtown, Jackson Bottom, Henry, and Eastwood neighborhoods. Blocks in the downtown core are 400 feet (120 m) long on each side. The Minter Bridge, Rood Bridge, and River Road neighborhoods are in the south planning area; the southeast area consists of the Reedville and Witch Hazel neighborhoods, and the Brookwood planning area in the center of the city contains the Cedar, Bentley, and Brogden neighborhoods.
Landmarks in Hillsboro include the Washington County Courthouse, the seat of county government. Along the western edge of the city is Hillsboro Pioneer Cemetery, established in 1870, which serves as the final resting place of city pioneers and politicians. Next to the airport is the Washington County Fair Complex, home to the annual county fair. Located at Shute Park is the 25-foot (7.6 m) tall wood sculpture Chief Kno-Tah, donated to Hillsboro and dedicated in 1987 as part of Peter Wolf Toth’s Trail of the Whispering Giants.
Hillsboro’s population grew from 402 in 1880 to 2,016 by 1910, making it the county’s most populated city, according to the 1910 census data. By 1970, it had increased to more than 15,000, although neighboring Beaverton had overtaken it as the county’s most populous city. By 1990 there were more than 37,000 residents, and commuters raised this to 110,000 during daytime. At the 2010 Census, the population was 91,611, fifth in rank among the state’s largest cities behind Portland, Eugene, Salem and Gresham and slightly ahead of Beaverton, which ranked sixth. This figure was a 30.5 percent increase from Hillsboro’s 70,186 residents in 2000, which made Hillsboro the fourth fastest-growing city in the state during the 2000s (decade), and the fastest-growing city in the Willamette Valley over the same period. In 2007, there were 17,126 houses lived in by their owners, with an average home price in the city of $246,900. Bloomberg Businessweek listed the city as the fastest-growing in Oregon for the period between 1990 and 2010, for cities with populations over 10,000.
As of the census of 2010, there were 91,611 people, 33,289 households, and 22,440 families residing in the city. The population density was about 3,800 inhabitants per square mile (1,500/km). There were 35,487 housing units at an average density of about 1,500 per square mile (600/km). The racial makeup of the city was approximately 73% White, 2% African American, 1% Native American, 9% Asian, less than 1% Pacific Islander, 10% from other races, and 5% from two or more races. Hispanic or Latino of any race were about 23% of the population.
There were 33,289 households of which about 38% had children under the age of 18 living with them, 51% were married couples living together, 11% had a female householder with no husband present, 5% had a male householder with no wife present, and 33% were non-families. About 24% of all households were made up of individuals and 6% had someone living alone who was 65 years of age or older. The average household size was 2.71 and the average family size was 3.24.
The median age in the city was 32 years. About 27% of residents were under the age of 18; 9% were between the ages of 18 and 24; 35% were from 25 to 44; 21% were from 45 to 64; and 8% were 65 years of age or older. The gender makeup of the city was 50.2% male and 49.8% female.
At the time of the 2000 census, there were 25,079 households, of which about 38% had children under the age of 18 living with them, 55% were married couples living together, 9% had a female householder with no husband present, and 32% were non-families. About 23% of all households were made up of individuals and 5% had someone living alone who was 65 years of age or older. The average household size was 2.8 and the average family size was 3.3.
City residents included about 28% under the age of 18, 11% from 18 to 24, 37% from 25 to 44, 17% from 45 to 64, and 6% who were 65 years of age or older. The median age was 30 years. For every 100 females, there were about 106 males.
The median household income was about $52,000 and the median family income was $57,000. Males had a median income of $41,000 compared to $30,000 for females. The per capita income for the city was about $22,000. Approximately 6% of families and 9% of the population were below the poverty line, including 11% of those under age 18 and 8% of those age 65 or over. In 2007, 28% of people 25 and older held at least a bachelor’s degree, while an additional 11% held an associate degree. Those with less than a high school diploma made up 15% of the population, and 22% of residents had more than a high school diploma but less than a college degree.
For the year 2011, the city had 180 violent crimes reported to law enforcement, and 2,154 reports of property crimes. The violent crime rate was 157.2 per 100,000 people compared to a national average of 309.3 and 287 for Oregon. Property crime nationally was 3,335 per 100,000 compared to 3,203 in Hillsboro, and 4,402 for the state. Violent offenses include forcible rape, robbery, murder, non-negligent manslaughter, and aggravated assault. Property crimes include arson, motor vehicle theft, larceny, and burglary. Statistics published by the Oregon Criminal Justice Commission showed a slight downward trend in the Washington County crime rate between 1991 and 2005. The rate for index crimes, a group comprising the combined violent offenses and property crimes mentioned above, was 3,930 per 100,000 in 1991 and rose to 4,440 per 100,000 in 1997 before falling to 3,410 per 100,000 in 2005.