Sinking Spring, Pennsylvania
|Official name: Borough of Sinking Spring|
|Elevation||338 ft (103 m)|
|Area||1.4 sq mi (4 km2)|
|- land||1.4 sq mi (4 km2)|
|- water||0.0 sq mi (0 km2)|
|Density||1,960.7 / sq mi (757 / km2)|
|Incorporated||March 13, 1913|
|- summer (DST)||EDT (UTC-4)|
Sinking Spring is a borough in Berks County, Pennsylvania, United States. The population was 4,008 at the 2010 census. Sinking Spring was given its name for a spring located in the center of town, the water in which would sink into the ground from time to time, giving it the illusion of having disappeared.
Sinking Spring is located at (40.324725, -76.022386).
According to the United States Census Bureau, the borough has a total area of 1.4 square miles (3.6 km2), all of it land.
The Indians who first inhabited this area were the Lenni Lenape Indians (meaning the "original people"). The Tribe in this immediate area was the Minsi or Wolf tribe. They were known to be quite warlike at times. These Indians later became known as the Delawares. This name was given to them by a white man, Lorde de la Ware. Indian inhabitants in the Sinking Spring area supposedly called the main spring as the sunken spring. White settlers later called it the "sinking spring."
Penn Avenue is the main thoroughfare of Sinking Spring. There is a stone monument in the 3800 block of Penn Avenue. It was placed to identify "The Spring," which is said to periodically appear and disappear. The Township of Sinking Spring has a large number of underground streams that carve out limestone and form sinkholes; thus the name Sinking Spring.
The Borough of Sinking Spring was incorporated on March 13, 1913.
|Source: US Census Bureau|
As of the census of 2000, there were 2,639 people, 1,233 households, and 748 families residing in the borough. The population density was 1,960.7 people per square mile (754.8/km²). There were 1,269 housing units at an average density of 942.8 per square mile (362.9/km²). The racial makeup of the borough was 95.76% White, 1.06% African American, 0.15% Native American, 0.80% Asian, 1.21% from other races, and 1.02% from two or more races. Hispanic or Latino of any race were 2.73% of the population.
There were 1,233 households out of which 23.3% had children under the age of 18 living with them, 46.6% were married couples living together, 10.8% had a female householder with no husband present, and 39.3% were non-families. 33.0% of all households were made up of individuals and 14.8% had someone living alone who was 65 years of age or older. The average household size was 2.14 and the average family size was 2.72.
In the borough the population was spread out with 19.6% under the age of 18, 6.7% from 18 to 24, 30.6% from 25 to 44, 20.5% from 45 to 64, and 22.5% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 89.9 males. For every 100 females age 18 and over, there were 89.2 males.
The median income for a household in the borough was $35,078, and the median income for a family was $50,064. Males had a median income of $36,875 versus $24,635 for females. The per capita income for the borough was $23,053. About 12.0% of families and 11.6% of the population were below the poverty line, including 18.9% of those under age 18 and 14.8% of those age 65 or over.
Business and industry 
Several oil and gas pipeline, terminal, and distribution companies are located in Sinking Spring near the village of Montello.
The Sunoco Logistics Montello Complex is the company's Eastern Pipeline System headquarters, as well as a local trucking terminal and a major midstream terminal for refined products, mostly originating from the Philadelphia and Marcus Hook refineries. Sunoco's pipelines out of Montello provide gasoline, diesel fuel, and heating oil to large markets in Pittsburgh, Buffalo, and Rochester, as well as smaller markets near Harrisburg, Altoona, Williamsport, Tamaqua (PA), Kingston (PA), and Corning/Elmira (NY).
Also located in Sinking Spring is the Alcon Laboratories "Alcon Precision Device" facility, used for the production of disposable, single-use medical devices. Most of these types of devices that Alcon manufactures for the world are fabricated within its walls.
Sinking Spring is headquarters to Hofmann Industries Inc., a manufacturer of welded steel tubing, powder-coated tubing, zinc-plated tubing, and fabricated tubing. The corporation owns a second plant in Eau Claire, Michigan. Established in 1922, Hofmann has called Sinking Spring home since the 1930s. The Sinking Spring Foundry, located on James Street was once part of Hofmann Industries, as was the Hofmann Broom Works.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
- Paraphrased from Alcon's website, http://www.alcon.com/alcon-locations/us-sinking-spring-pa.asp