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28-555: Located in Mechanicsburg, Pennsylvania , PaLA represents the interests of the profession to the Legislature and others in state government. It has programs providing opportunities for professional growth, leadership development, and continuing education for librarians. It makes annual awards to honor noteworthy librarians and library supporters. Small grants and scholarships are available for worthy recipients. The association

56-459: A household in the borough was $ 45,200, and the median income for a family was $ 54,228. Males had a median income of $ 37,130 versus $ 27,940 for females. The per capita income for the borough was $ 22,812. About 2.4% of families and 4.2% of the population were below the poverty line , including 6.0% of those under age 18 and 5.0% of those age 65 or over. Mechanicsburg was named after a settlement of mechanics who made and repaired Conestoga wagons in

84-690: A trustee), the first women's college in Pennsylvania to grant degrees in arts and sciences. The Mechanicsburg Commercial Historic District , Irving Female College , Cumberland Valley Railroad Station and Station Master's House , Adam Orris House , and Simpson Street School are listed on the National Register of Historic Places . The Pennsylvania Department of Corrections has its headquarters in Hampden Township , Cumberland County , near Mechanicsburg. Mechanicsburg lies in

112-511: Is 53/km (140/sq mi). This includes all continental and island land area, including Antarctica . However, if Antarctica is excluded, then population density rises to over 58 per square kilometre (150/sq mi). The European Commission's Joint Research Centre (JRC) has developed a suite of (open and free) data and tools named the Global Human Settlement Layer (GHSL) to improve the science for policy support to

140-618: Is a borough in Cumberland County, Pennsylvania , United States. The borough is eight miles (13 km) west of Harrisburg . It is part of the Harrisburg–Carlisle metropolitan statistical area . As of the 2010 census , it had a population of 8,981. The 2020 census reported the population at 9,311. Mechanicsburg is located in eastern Cumberland County at 40°12′44″N 77°00′22″W  /  40.212089°N 77.006143°W  / 40.212089; -77.006143 . It

168-454: Is a measurement of population per unit land area. It is mostly applied to humans , but sometimes to other living organisms too. It is a key geographical term. Population density is population divided by total land area , sometimes including seas and oceans, as appropriate. Low densities may cause an extinction vortex and further reduce fertility. This is called the Allee effect after

196-507: Is around 8,000,000,000 and the Earth 's total area (including land and water) is 510,000,000 km (200,000,000 sq mi). Therefore, the worldwide human population density is approximately 8,000,000,000 ÷ 510,000,000 = 16/km (41/sq mi). However, if only the Earth's land area of 150,000,000 km (58,000,000 sq mi) is taken into account, then human population density

224-401: Is governed by a 16-member board, and has a four-member staff. The membership consists of qualified persons in the personal, institutional, and commercial categories. PaLA is organized into eight regional chapters, the better to promote librarianship and library service on a focused geographical basis. Each member is assigned membership in a chapter based on the county in which his or her library

252-559: Is in a rich agricultural region known as the Cumberland Valley , a broad zone between South Mountain and the Ridge-and-Valley Appalachians . Mechanicsburg is bordered by Silver Spring Township to the northwest, Monroe Township to the southwest, Upper Allen Township to the south, Lower Allen Township to the east, and Hampden Township to the northeast. Pennsylvania Route 641 (Trindle Road)

280-463: Is located, if the member is retired, or the county in which they live. Committees and special interest groups include (but not limited to) College & Research Division; Buildings & Equipment; Digital Resources; Technical Services; Archives; Awards; Intellectual Freedom; Legislative Information; Membership; Nominations & Elections; Organization & Bylaws; Public Relations; and Scholarship. Mechanicsburg, Pennsylvania Mechanicsburg

308-492: Is the main east–west street through the borough, leading east 4 miles (6 km) to Camp Hill and west 10 miles (16 km) to Carlisle , the county seat . Pennsylvania Route 114 leads north out of town on York Street and south on Market Street. Interstate 76 , the Pennsylvania Turnpike , passes just south of Mechanicsburg, with access to the southeast of town via Exit 236 ( U.S. Route 15 ). According to

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336-654: The European Commission Directorate Generals and Services and as support to the United Nations system. Several of the most densely populated territories in the world are city-states , microstates and urban dependencies . In fact, 95% of the world's population is concentrated on just 10% of the world's land. These territories have a relatively small area and a high urbanization level, with an economically specialized city population drawing also on rural resources outside

364-778: The Skirmish of Sporting Hill , just east of town. Following the Skirmish of Sporting Hill, the Confederate forces retreated south into the little town of Gettysburg where the Battle of Gettysburg would be fought. The oldest building in Mechanicsburg is the Frankeberger Tavern. One of Mechanicsburg's first residents was George Frankeberger, who in 1801 applied for a license to open his newly built log home for

392-591: The United States Census Bureau , the borough has a total area of 2.41 square miles (6.25 km ), of which 1.1 acres (4,478 m ), or 0.07%, is water. It has a hot-summer humid continental climate ( Dfa ) and monthly average temperatures range from 29.9 °F (−1.2 °C) in January to 74.8 °F (23.8 °C) in July. The hardiness zone is borderline between 6b and 7a, meaning that

420-413: The "convenience" of travelers. In exchange for a small fee, Mr. Frankeberger offered cattle drivers a warm meal and a place to sleep. This proved to be rather lucrative, as many people were making the two-day trek between Harrisburg (the state capital) and Carlisle (Cumberland County's county seat). Mechanicsburg is home to many historic markers, such as Irving Female College (named for Washington Irving ,

448-473: The Defense Department's major logistics sites. Present-day Mechanicsburg is centered on 100 acres (40 ha) that Leonard Fisher purchased from Joseph Heynes' tract (No. 1442 of an original grant of 267 acres (1.08 km ) from William Penn . Before becoming incorporated on April 12, 1828, the town went by several different names. First, Drytown, because of the extreme scarcity of water during

476-568: The annual average absolute minimum temperature is approximately 0 °F. In 1900, 3,841 people lived here; in 1910, the population was 4,469, which increased to 5,709 in 1940. As of the 2010 census, the borough population was 8,981. As of the census of 2000, there were 9,042 people, 4,023 households, and 2,466 families residing in the borough. The population density was 3,494.6 inhabitants per square mile (1,349.3/km ). There were 4,169 housing units at an average density of 1,611.3 units per square mile (622.1 units/km ). The racial makeup of

504-998: The area, illustrating the difference between high population density and overpopulation . Deserts have very limited potential for growing crops as there is not enough rain to support them. Thus, their population density is generally low. However, some cities in the Middle East, such as Dubai , have been increasing in population and infrastructure growth at a fast pace. Cities with high population densities are, by some, considered to be overpopulated, though this will depend on factors like quality of housing and infrastructure and access to resources. Very densely populated cities are mostly in Asia (particularly Southeast Asia ); Africa's Lagos , Kinshasa , and Cairo ; South America's Bogotá , Lima , and São Paulo ; and Mexico City and Saint Petersburg also fall into this category. City population and especially area are, however, heavily dependent on

532-634: The borough is Mechanicsburg Area School District . The district operates Mechanicsburg Area Senior High School , within Mechanicsburg borough. Messiah University is in nearby Upper Allen Township . Cumberland Valley High School of Cumberland Valley School District is in Silver Spring Township , with a Mechanicsburg postal address. That district does not cover Mechanicsburg borough. [REDACTED] Pennsylvania portal Population density Population density (in agriculture : standing stock or plant density )

560-546: The borough was 96.97% White , 0.43% African American , 0.09% Native American , 1.15% Asian , 0.28% from other races , and 1.08% from two or more races. Hispanic or Latino of any race were 0.83% of the population. There were 4,024 households, out of which 25.7% had children under the age of 18 living with them, 49.1% were married couples living together, 8.8% had a female householder with no husband present, and 38.7% were non-families. Of all households, 32.8% were made up of individuals, and 10.3% had someone living alone who

588-495: The center of a regional transportation crossroads, with Interstate 81 , Interstate 76 , Interstate 83 , US Route 11 , and US Route 15 passing in close proximity to the borough. The Appalachian Trail passes through Pennsylvania a few miles west of Mechanicsburg, in nearby Boiling Springs . The Naval Support Activity Mechanicsburg is located off the Carlisle Pike just outside of Mechanicsburg. The school district for

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616-547: The definition of "urban area" used: densities are almost invariably higher for the center only than when suburban settlements and intervening rural areas are included, as in the agglomeration or metropolitan area (the latter sometimes including neighboring cities). In comparison, based on a world population of 8 billion, the world's inhabitants, if conceptualized as a loose crowd occupying just under 1 m (10 sq ft) per person (cf. Jacobs Method ), would occupy an area of 8,000 square kilometres (3,100 sq mi)

644-523: The early 19th century. In 1837, when the Cumberland Valley Railroad (CVRR) completed its line, Mechanicsburg was designated as a water station, where workers could restock the locomotive with firewood and water. This important function also contributed to the town's growth. The train became the town's link to the world of business and industry. Grain and feed companies, lumber yards and numerous factories were purposely built alongside

672-479: The local sub-line owned by Norfolk Southern . Although automotive technology changed the town forever, today's residents cannot dismiss the vital role the railroad played in its development. Another part of Mechanicsburg's growth occurred when the Naval Support Activity was built on 840 acres (340 ha) of land in Hampden Township, Pennsylvania . NSA Mechanicsburg continues to serve as one of

700-488: The railroad tracks. Archives show that, at one time , there were twenty-five trains chugging through the town daily carrying travelers, coal, feathers, fruit, ice, mail and newspapers. During the American Civil War , the railroad was an invaluable method of transporting troops and supplies. Today , approximately six trains travel through Mechanicsburg each day, which has recently increased due to new operations on

728-443: The scientist who identified it. Examples of the causes of reduced fertility in low population densities are: Population density is the number of people per unit of area, usually transcribed as "per square kilometer" or square mile, and which may include or exclude, for example, areas of water or glaciers. Commonly this is calculated for a county , city , country , another territory or the entire world . The world's population

756-529: The winter and summer. It was also known as Pinchgut, a German name used as a sign of amusement given to a small village of only a few people. Some also referred to the town as Staufferstown, in honor of Henry Stauffer, the owner of much of the land in the center of town, or briefly as Creekville during the Colonial Era. On June 28, 1863, Confederate troops led by Brig. Gen. Albert G. Jenkins raided Mechanicsburg, and two days later, met with Union forces in

784-451: Was 65 years of age or older. The average household size was 2.23 and the average family size was 2.85. In the borough the population was spread out, with 21.5% under the age of 18, 7.3% from 18 to 24, 30.8% from 25 to 44, 24.6% from 45 to 64, and 15.8% who were 65 years of age or older. The median age was 39 years. For every 100 females, there were 91.3 males. For every 100 females age 18 and over, there were 86.7 males. The median income for

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