根據2004年以來七次全縣性大選各候選人所屬政黨得票數與得票率做點估計，泛綠政黨在彰化縣的帄均得票數約有315,000票，帄均得票率約為45.8%；而泛藍政黨在彰化縣的帄均得票數約有368,000票，帄均得票率約為53.5%。泛藍全縣政治版圖約大於泛綠全縣政治版圖7.7%。若進一步分成四區來做點估計，泛藍第一選區政治版圖約大於泛綠5.8%，泛藍第二選區政治版圖約大於泛綠12%，泛藍第三選區政治版圖約大於泛綠4.2%，泛藍第四選區政治版圖約大於泛綠10%。若以區間估計來分析，泛藍全縣政治版圖約大於泛綠全縣政治版圖介於7.4%至8.1%之間。若進一步分成四區來做區間估計，泛藍第一選區政治版圖約大於泛綠5.7%。泛藍第二選區政治版圖約大於泛綠12%。泛藍第三選區政治版圖約大於泛綠4%。泛藍第四選區政治版圖約大於泛綠9.7%。所以無論以點估計或是區間估計，其結果相當類似：泛藍第一選區政治版圖約大於泛綠5.8%，泛藍第二選區政治版圖約大於泛綠12%，，泛藍第三選區政治版圖約大於泛綠4%，泛藍第四選區政治版圖約大於泛綠10%。泛藍全縣政治版圖約大於泛綠全縣政治版圖約7.7%。以各鄉鎮而言，泛藍在花壇鄉（57.56%）、二林鎮（57.25%）與大城鄉（57.18%）最強，帄均得票率都超過五成七，次強的是彰化市（56.07%）、伸港鄉（55.86%）、田中鎮（55.81%）和員林鎮（55.73%），最弱的是福興鄉（42.89%）、次弱的是竹塘鄉（44.92%），得票率都低於四成五。本文分析結果發現彰化縣應屬泛藍稍強地區。但是2014年11月29日縣長選舉投票結果民進黨提名的魏明谷在彰化縣得到386405票，得票率53.17%，國民黨提名的林滄敏在彰化縣僅得到284738票，得票率39.57%，無黨籍的黃文玲則得到37593票，得票率5.22%。2015年2月7日立法委員補選投票結果民進黨提名的陳素月在彰化縣第四選區得到51907票，得票率53.61%，國民黨提名的卓伯源在彰化縣第四選區僅得到34707票，得票率35.84%，無黨籍的洪麗娜則得到9774票，得票率10.09%，可見相較於其他縣市，藍綠政治版圖在彰化縣，特別是第四選區已經大幅移動。

With the votes for the candidates belonging to which party to do the point estimation using the electoral data since 2004, including legislative, magistrate, and presidential elections, the average number of votes is about 315,000 and the average percent is approximately 45.8% for the pan-green parties; and the average number of votes is about 368,000 and the average percent is approximately 53.5% for the pan-blue parties. Therefore, the pan-blue political landscape is 7.7% greater than the pan-green in Chunghua County. When divided into four areas to do the point estimations that the pan-blue political landscape is 5.8% greater than the pan-green in the first constituency; and the pan-blue political landscape is 12% greater than the pan-green in the second constituency, the pan-blue political landscape is 4.2% greater than the pan-green in the third constituency; and the pan-blue political landscape is 10% greater than the pan-green in the fourth constituency. With the votes for the candidates belonging to which party to do the interval estimation, the pan-blue political landscape is greater than the pan-green between 7.4% and 8.1% in Chunghua County. When divided into four areas to do the interval estimations, the pan-blue political landscape is 5.7% greater than the pan-green in the first constituency; the pan-blue political landscape is 12% greater than the pan-green between in the second constituency, the pan-blue political landscape is 4% greater than the pan-green in the third constituency; the pan-blue political landscape is 9.7% greater than the pan-green in the fourth constituency. The results of point estimation and interval estimation are similar.