This is a listing of Federal Information Processing Standard (FIPS) codes for each of the 67 counties in Pennsylvania.
Information gathered from census data - https://www.census.gov/geo/reference/codes/cou.html
For more technical details :

Federal Information Processing Standards Publications (FIPS PUBS) are issued by the National Institute of Standards and Technology (NIST) after approval by the Secretary of Commerce pursuant to Section 111 (d) of the Federal Property and Administrative Services Act of 1949 as amended by the Computer Security Act of 1987, Public Law 100-235.

Federal Information Processing Standard (FIPS) 6-4, Counties and Equivalent Entities of the U.S., Its Possessions, and Associated Areas -- 90 Aug 31 , provides the names and codes that represent the counties and other entities treated as equivalent legal and/or statistical subdivisions of the 50 States, the District of Columbia, and the possessions and freely associated areas of the United States. Counties are considered to be the "first-order subdivisions" of each State and statistically equivalent entity, regardless of their local designations (county, parish, borough, etc.).

This dataset contains information about individual projects by state agencies through the Governor’s Office of Transformation, Innovation, Management and Efficiency (GO-TIME). Data includes the project name, agency, description, status, cost savings type, non-financial benefits and net savings for the 2015-16 fiscal year. The projects are intended to produce cost savings, efficiency gains, service improvements and other benefits. State agencies are able to reinvest their savings into programs and to offset rising costs in other areas. These efforts have resulted in over $156 million in savings in the 2015-16 fiscal year, exceeding the Governor’s goal of $150 million in savings. With this success, the Governor has now challenged GO-TIME to achieve $500 million in savings by 2020.

GO-TIME uses a standard methodology to calculate cost savings and a project management tool to track agency cost savings estimates and monitor the progress of initiatives on a quarterly basis, ensuring that cost savings are accurately captured and savings goals are achieved.

Actual or estimated expenses are subtracted from savings to determine net project savings. Savings within each year are prorated based on the date of project implementation, with project costs taken in full in the year in which they are incurred.
This data is also published and searchable on the https://www.governor.pa.gov/go-time/ website.

School District boundaries in Pennsylvania from Department of Education district maps. Purpose: Public information and support for transportation planning, design and development.

Provides the Refresh Schedule for each dataset. Information included is the Dataset name, a short description, update frequency, date of last update and status for both completed and in progress.

A latitude and longitude for each county. This was created to use when developing a map when using files with only the county name, but a map is requested. Use this latitude and longitude file and assign the counts to the correct county to show in a boundary map layer.

State House boundaries within Pennsylvania attributed with names of legislators and party affiliations. Purpose: Public information and support for transportation planning, design and development.

Constraints: The user shall indemnify, save harmless, and, if requested, defend the COMMONWEALTH, their officers, agents, and employees from and against any suits, claims, or actions for injury, death, or property damage arising out of the use of or any defect in the FILES or any accompanying documentation.

The COMMONWEALTH excludes any and all implied warranties, including warranties or merchantability and fitness for a particular purpose.

The COMMONWEALTH makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided "as is" and the USER assumes the entire risk as to its quality and performance.

The COMMONWEALTH will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation.

The USER is granted permission to translate and add value to the FILES for the use of the FILES on its computer hardware; provided, however, that the USER annually notify the UNIVERSITY / COMMONWEALTH of any customizing or value-adding work done.

Any customized or value added versions of the files will contain the following disclaimer:

THIS IS NOT A PENNSYLVANIA DEPARTMENT OF TRANSPORTATION APPROVED FILE. THE DEPARTMENT OF TRANSPORTATION RETAINS THE MASTER FILES.

THE USER AGREES AND UNDERSTANDS THAT IT MAY NOT FURTHER DISTRIBUTE THE FILES TO A THIRD PARTY.

Pennsylvania Spatial Data Access (PASDA) is Pennsylvania's official public access geospatial information clearinghouse. PASDA was developed in 1996 by the Pennsylvania State University and has served as the clearinghouse for Pennsylvania for over twenty years.

PASDA is a cooperative project of the Governor's Office of Administration, Office for Information Technology, and Penn State Institutes of Energy and the Environment of the Pennsylvania State University. Funding and support is provided by the Pennsylvania Office for Information Technology. Penn State contributions include system administration support and infrastructure from the Institute for CyberScience, and the College of Earth and Mineral Sciences.

PASDA was developed as a service to the citizens of the Commonwealth of Pennsylvania. The purpose of PASDA is to serve as the Commonwealth's comprehensive and coordinated open geospatial data portal that provides free public access to geospatial data and information by, for, and about the Commonwealth of Pennsylvania. PASDA is Pennsylvania's node on the National Spatial Data Infrastructure,Geospatial One-Stop, and is integrated with the National States Geographic Information Council GIS Inventory.

State Senate boundaries within Pennsylvania attributed with names of legislators and party affiliations. Purpose: Public information and support for transportation planning, design and development.

Constraints: The user shall indemnify, save harmless, and, if requested, defend the COMMONWEALTH, their officers, agents, and employees from and against any suits, claims, or actions for injury, death, or property damage arising out of the use of or any defect in the FILES or any accompanying documentation.

The COMMONWEALTH excludes any and all implied warranties, including warranties or merchantability and fitness for a particular purpose.

The COMMONWEALTH makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided "as is" and the USER assumes the entire risk as to its quality and performance.

The COMMONWEALTH will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation.

The USER is granted permission to translate and add value to the FILES for the use of the FILES on its computer hardware; provided, however, that the USER annually notify the UNIVERSITY / COMMONWEALTH of any customizing or value-adding work done.

Any customized or value added versions of the files will contain the following disclaimer:

THIS IS NOT A PENNSYLVANIA DEPARTMENT OF TRANSPORTATION APPROVED FILE. THE DEPARTMENT OF TRANSPORTATION RETAINS THE MASTER FILES.

THE USER AGREES AND UNDERSTANDS THAT IT MAY NOT FURTHER DISTRIBUTE THE FILES TO A THIRD PARTY.