Biohazard and Pathogen Disinfection in Johnsonburg, PA

Johnsonburg is a borough in Elk County, Pennsylvania, at the confluence of the East and West Branches of the Clarion River, on the eastern edge of the Allegheny National Forest in the Pennsylvania Wilds.

Johnsonburg is the oldest settlement in Elk County: David Johnson arrived at the river junction in 1810, the town was first called Coopersport, and the Johnson name stuck — the borough was incorporated in 1891.

Johnsonburg is nicknamed 'The Paper City' because of its paper mill, which began operating in 1888 and is still run today by Domtar, the borough's largest employer and property owner.

By 1950 the Johnsonburg mill — built by the Armstrong family, later part of the New York & Pennsylvania Company and owned from 1925 by Curtis Publishing — was believed to be the largest coated paper mill in the world.

Paper made in Johnsonburg was used for the Saturday Evening Post in the Norman Rockwell era, and in later years for the Harry Potter books.

The Domtar mill operates an on-site fish hatchery that has released about 10,000 brook, brown and rainbow trout a year into the Clarion River for over 30 years.

Johnsonburg's population reached 4,334 in 1910 during the lumber and paper boom; the 2020 census counted 2,404 residents.

The 2010 census counted 1,126 households in Johnsonburg.

The Johnsonburg Commercial Historic District, 32 contributing mostly brick buildings dating from the 1890s to the 1930s, was listed on the National Register of Historic Places in 1999.

A devastating flood in 1942 led the U.S. Army Corps of Engineers to build the East Branch Dam on the Clarion River northeast of Johnsonburg between 1947 and 1952.