1999 P Connecticut State Quarter Value Today! According to the NGC Price Guide, as of October 2024, a 1999 P Connecticut State Quarter from 1999 in circulated condition is worth between $0.30 and $0.40. However, on the open market 1999 P Quarters in pristine, uncirculated condition sell for as much as $400.  top x coins,coins worth money, worth money, coins collecting, rare coins,rare coins worth money, valuable coins, dollars, state quarter dollars,rare quarter dollars, quarter dollar worth money, dollar to look for, valuable dollars,1999 p connecticut quarter dollar,1999 p connecticut quarter worth money,