From 2004 through mid-2006, price premiums for organic shell eggs ranged from 113% in the first quarter of 2004 to a high of 414% in the second quarter of 2005, according to a study by the U.S. Department of Agriculture's Economic Research Service.

The average price premium for organic over conventional eggs for the entire period was 278%.

Prices for organic eggs held steady at an average of $2.34/dozen from July 2004 through June 2006, with a constant range of $2.17 to $2.50.

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Average prices for conventional eggs ranged from 43 cents per dozen to an historical high of $1.14/dozen during the same period.

Organic price data for eggs and poultry at the intermediary level became available in USDA AMS’s Market News Reports starting in January 2004. Only prices for brown eggs are currently reported by AMS since the majority of the organic egg market comprises brown eggs.

For details on the USDA-ERS organic egg and poultry study, go to this  USDA ERS report .