Income Inequality

State and county top incomes

You will find here state and county level estimates of top incomes (top 10%, top 1%, top .01%) and top incomes shares first published in 2006 by Estelle Sommeiller and later updated and published by the Economic Analysis Research Network with co-author Mark Price. Sommeiller and Price are contirbutors to the World Top Income Database.

This page lists links to the data and methodolgy underlying Sommeiller and Price's top income estimates as well as county level data.  

State Taxable Income Reporting

Top income analysis based on state and county level statistics on incomes published by state level tax autorities.


Delaware's top 1 percent claims all income growth

February 17, 2015

Delaware's wealthiest residents hoarded all of the income gains as the state recovered from the recession, according to a study from the Economic Policy Institute that provided yet more evidence of an imbalanced economic recovery.

From 2009 to 2012, the top 1 percent of Delaware earners saw income growth of 15 percent.

The bottom 99 percent? Their incomes fell 1.6 percent. The study was based on Internal Revenue Service data of adjusted gross income.

The States Where the Rich Are Getting Richer

March 2, 2015

Income inequality has widened in all 50 states in the last few decades. More recently, as the United States recovered from the latest recession, the gap between the richest and poorest residents in many states has increased. From 2009 to 2012, a period of economic recovery in the U.S., income growth has varied considerably between states but not between income brackets. Top earners have disproportionately captured the bulk of the income growth across all states.

Testimony of Mark Price: Senate Labor and Industry Committee: Increasing the Minimum Wage Hearing

Mark Price
Publication Date: 
May 5, 2015

My name is Mark Price and I hold a Ph. D. in economics from the University of Utah.  I am a labor economist at the Keystone Research Center (KRC), a non-partisan economic think tank based in Harrisburg.  I want to thank Chairwoman Baker and Chairwoman Tartaglione for the opportunity to testify before this committee on the benefits of a minimum wage increase for Pennsylvania workers. 

Report: Inequitable Tax Code Costs Pennsylvania up to $6.9 Billion

Taxing Top Incomes at the Same Rate as the Middle-Class Could Fund Critical State Priorities such as Restoring Education Cuts and Paying Down Pension Debt
Date of Press Release: 
March 11, 2015

Read the report

View other state reports

As Pennsylvania confronts a nearly a $2 billion budget gap and pressing needs for revenue to invest in education, job creation and other needs, a new report out today shows that Pennsylvania could generate up to $6.9 billion in revenue by fixing inequities in the state tax code.

Tax Fairness: An Answer to Pennsylvania’s Budget Problems

Stephen Herzenberg
Publication Date: 
March 11, 2015

Background Memo: FL Gov. Rick Scott’s visit to Philadelphia today and tomorrow

Date of Press Release: 
February 23, 2015

Keystone Research Center has received several inquiries about Gov. Rick Scott’s visit to Philadelphia this week, and the trip has received a great deal of media attention. This background memo provides Pennsylvania media with some context that may be helpful. If you would like to schedule interviews with KRC or need assistance finding additional information or sources in Florida, please contact Ellen Lyon at 717-255-7156 or Stephen Herzenberg at 717-805-2318.

A Trip Premised on a Misguided Economic Approach and Inaccurate Facts

The Minimum Wage In Pennsylvania

The Problem

After adjusting for inflation the hourly earnings of the bottom fifth of workers in Pennsylvania are lower today than they were in 1979. This decline in earnings has occurred despite the fact that bottom fifth of workers today is better educated and more productive than in the past.

Download County by County Fact Sheets
Business for a Fair Minimum Wage
Raise the Wage PA Coalition
Pennsylvania Facts
Other Minimum Wage Research
KRC Blog Posts

Falling Short: The Impact of Raising the Minimum Wage in PA to $8.75 vs. $10.10

David Cooper
Mark Price
Publication Date: 
February 6, 2015

Read the press release

The Pennsylvania General Assembly is considering a proposal to raise the state’s minimum hourly wage above the federal level of $7.25 to $10.10 by July 2016. An alternative proposal would increase the minimum wage to $8.75 for workers age 19 and older by 2017.

This Policy Watch compares the impacts of these proposals. It finds that the increase to $10.10 per hour would: