Clarion County Courthouse
Location within the U.S. state of Pennsylvania
Pennsylvania's location within the U.S.
|Founded||March 11, 1839|
|Named for||Clarion River|
|o Total||610 sq mi (1,600 km2)|
|o Land||601 sq mi (1,560 km2)|
|o Water||9.0 sq mi (23 km2) 1.5%%|
| o Estimate |
|o Density||66/sq mi (25/km2)|
|Time zone||UTC-5 (Eastern)|
|o Summer (DST)||UTC-4 (EDT)|
|Designated||April 26, 1982|
Clarion County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 39,988. Its county seat is Clarion. The county was formed on March 11, 1839, from parts of Venango and Armstrong counties. Clarion County is entirely defined as part of the Pittsburgh media market.
According to the U.S. Census Bureau, the county has a total area of 610 square miles (1,600 km2), of which 601 square miles (1,560 km2) is land and 9.0 square miles (23 km2) (1.5%) is water. It has a warm-summer humid continental climate (Dfb) and average temperatures in Clarion borough range from 24.5° F in January to 68.7° F in July. 
Part of Cook Forest State Park is in Clarion County.
The Clarion County Park is located in Paint Township. Clarion County Veterans Memorial Park is located near the Clarion County Courthouse in the center of the Borough of Clarion.
As of the census of 2000, there were 41,765 people, 16,052 households, and 10,738 families residing in the county. The population density was 69 people per square mile (27/km²). There were 19,426 housing units at an average density of 32 per square mile (12/km²). The racial makeup of the county was 98.16% White, 0.79% Black or African American, 0.11% Native American, 0.34% Asian, 0.08% from other races, and 0.52% from two or more races. 0.41% of the population were Hispanic or Latino of any race. 43.9% English or Welsh, 12.9% American, 10.5% were of German, 8.0% Irish, 6.3% Scotch-Irish, 5.5% Italian and 2.6% Dutch, 2.0% French ancestry.
There were 16,052 households out of which 28.60% had children under the age of 18 living with them, 54.90% were married couples living together, 8.40% had a female householder with no husband present, and 33.10% were non-families. 26.00% of all households were made up of individuals and 11.30% had someone living alone who was 65 years of age or older. The average household size was 2.46 and the average family size was 2.95.
In the county, the population was spread out with 21.60% under the age of 18, 15.40% from 18 to 24, 25.20% from 25 to 44, 22.70% from 45 to 64, and 15.20% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 93.30 males. For every 100 females age 18 and over, there were 90.40 males.
The eight school districts of Clarion County have low enrollment. The Pennsylvania Department of Education projects that they will continue to experience steadily declining enrollment through 2019. A new school district composed of Clarion Area School District, Clarion-Limestone Area School District and North Clarion County School District would have a student population of 2500 with declining enrollment projected in all three former districts through 2019. A new district composed of Union School District (Pennsylvania), Keystone School District and adding Perry Township and Richland Township would have a student population under 2000 pupils. Consolidation would bring the elimination of costly main office, administrator positions. This would assist the district residents with the rising school administrator, employee and teachers' pension costs by controlling the need to raise taxes.
Over the next 10 years, rural Pennsylvania school enrollment is projected to decrease 8 percent. The most significant enrollment decline is projected to be in western Pennsylvania, where rural school districts may have a 16 percent decline. More than 40 percent of elementary schools and more than 60 percent of secondary schools in western Pennsylvania are projected to experience significant enrollment decreases (15 percent or greater). As the enrollment declines, per pupil administrative costs of the schools will continue to rise.
Pennsylvania has one of the highest numbers of school districts in the nation. In Pennsylvania, 80% of the school districts serve student populations under 5,000, and 40% serve less than 2,000. Less than 95 of Pennsylvania's 501 school districts have enrollment below 1250 students, in 2007. This results in excessive school administration bureaucracy and not enough course diversity. In a survey of 88 superintendents of small districts, 42% of the 49 respondents stated that they thought consolidation would save money without closing any schools.
Property taxes in Pennsylvania are relatively high on a national scale. According to the Tax Foundation, Pennsylvania ranked 11th in the U.S. in 2008 in terms of property taxes paid as a percentage of home value (1.34%) and 12th in the country in terms of property taxes as a percentage of income (3.55%).
Public school districts and private schools in the county are served by Riverview Intermediate Unit IU6 which provides special education and professional development services.
Clarion County Career Center, located along State Route 66 in Marianne (Shippenville address).
Under Pennsylvania law, there are four types of incorporated municipalities: cities, boroughs, townships, and, in at most two cases, towns. The following boroughs and townships are located in Clarion County:
+ county seat
|Rank||City/Town/etc.||Municipal type||Population (2010 Census)|
|8||Emlenton (mostly in Venango County)||Borough||625|