位于今河南省洛阳市区。本为东周王城，又称郏鄏；秦朝时置县，属三川郡；西汉属河南郡；东汉、曹魏、西晋属河南尹[1]；隋大业元年，炀帝在河南故城基营建新都洛阳[2]，此后河南县一直是洛阳的附郭县之一；金省入洛阳县。
参考文献
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