2021年千葉県知事選挙
選挙結果

各候補の得票率
熊谷俊人 (70.47%)
関政幸 (19.24%)
金光理恵 (6.15%)
皆川真一郎 (1.01%)
平塚正幸 (0.97%)
加藤健一郎 (0.80%)
河合悠祐 (0.76%)
後藤輝樹 (0.60%)
投開票の結果、前千葉市長の熊谷が新人7人に大差をつけ初当選を果たした。
※当日有権者数：5,197,045人 最終投票率：38.99%（前回比：+7.81pts）
| 候補者名 | 年齢 | 所属党派 | 新旧別 | 得票数 | 得票率 | 推薦・支持 |
| --- | --- | --- | --- | --- | --- | --- |
| 熊谷俊人 | 43 | 無所属 | 新 | 1,409,496.000票 | 70.47% |  |
| 関政幸 | 41 | 無所属 | 新 | 384,723.033票 | 19.24% | 自由民主党推薦 |
| 金光理恵 | 57 | 無所属 | 新 | 122,931.000票 | 6.15% | 日本共産党推薦 |
| 皆川真一郎 | 66 | 無所属 | 新 | 20,256.000票 | 1.01% |  |
| 平塚正幸 | 39 | 国民主権党 | 新 | 19,372.920票 | 0.97% |  |
| 加藤健一郎 | 71 | 無所属 | 新 | 15,986.000票 | 0.80% |  |
| 河合悠祐 | 40 | 千葉県全体を夢と魔法の国にする党 | 新 | 15,166.000票 | 0.76% |  |
| 後藤輝樹 | 38 | ベーシックインカム党 | 新 | 12,150.000票 | 0.60% |  |
| 市町村 | 熊谷俊人> 得票 | 熊谷俊人> % | 関政幸> 得票 | 関政幸> % | 金光理恵> 得票 | 金光理恵> % | 皆川真一郎> 得票 | 皆川真一郎> % | 平塚正幸> 得票 | 平塚正幸> % | 加藤健一郎> 得票 | 加藤健一郎> % | 河合悠祐> 得票 | 河合悠祐> % | 後藤輝樹> 得票 | 後藤輝樹> % |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 合計 | 1,409,496 | 70.47% | 384,723 | 19.24% | 122,932 | 6.15% | 20,256 | 1.01% | 19,372 | 0.97% | 15,986 | 0.80% | 15,166 | 0.76% | 12,150 | 0.61% |
| 千葉市中央区 | 59,468 | 80.26% | 10,125 | 13.67% | 2,491 | 3.36% | 395 | 0.53% | 448 | 0.60% | 376 | 0.51% | 372 | 0.50% | 417 | 0.56% |
| 千葉市花見川区 | 50,754 | 80.92% | 6,903 | 11.01% | 3,558 | 5.67% | 383 | 0.61% | 368 | 0.59% | 225 | 0.36% | 295 | 0.47% | 232 | 0.37% |
| 千葉市稲毛区 | 47,621 | 81.45% | 6,597 | 11.28% | 2,656 | 4.54% | 250 | 0.43% | 473 | 0.81% | 277 | 0.47% | 320 | 0.55% | 273 | 0.47% |
| 千葉市若葉区 | 41,357 | 78.76% | 7,355 | 14.01% | 2,281 | 4.34% | 257 | 0.49% | 387 | 0.74% | 348 | 0.66% | 270 | 0.51% | 257 | 0.49% |
| 千葉市緑区 | 36,698 | 73.34% | 10,605 | 21.19% | 1,792 | 3.58% | 172 | 0.34% | 233 | 0.47% | 145 | 0.29% | 206 | 0.41% | 189 | 0.38% |
| 千葉市美浜区 | 50,696 | 83.96% | 5,839 | 9.67% | 2,609 | 4.32% | 200 | 0.33% | 258 | 0.43% | 238 | 0.39% | 325 | 0.54% | 217 | 0.36% |
| 銚子市 | 11,084 | 62.32% | 5,217 | 29.34% | 795 | 4.47% | 150 | 0.84% | 155 | 0.87% | 162 | 0.91% | 120 | 0.67% | 102 | 0.57% |
| 市川市 | 93,419 | 70.20% | 22,529 | 16.93% | 11,377 | 8.55% | 1,333 | 1.00% | 1,305 | 0.98% | 1,165 | 0.88% | 969 | 0.73% | 979 | 0.74% |
| 船橋市 | 137,753 | 73.05% | 28,886 | 15.32% | 14,095 | 7.47% | 2,013 | 1.07% | 1,906 | 1.01% | 1,162 | 0.62% | 1,311 | 0.70% | 1,437 | 0.76% |
| 館山市 | 9,620 | 64.12% | 3,758 | 25.05% | 830 | 5.53% | 147 | 0.98% | 175 | 1.17% | 255 | 1.70% | 118 | 0.79% | 100 | 0.67% |
| 木更津市 | 27,337 | 66.89% | 9,643 | 23.60% | 1,829 | 4.48% | 351 | 0.86% | 802 | 1.96% | 244 | 0.60% | 367 | 0.90% | 296 | 0.72% |
| 松戸市 | 88,969 | 65.54% | 28,312 | 20.86% | 12,099 | 8.91% | 1,593 | 1.17% | 1,586 | 1.17% | 1,149 | 0.85% | 1,147 | 0.84% | 891 | 0.66% |
| 野田市 | 20,669 | 61.57% | 8,229 | 24.51% | 2,822 | 8.41% | 560 | 1.67% | 426 | 1.27% | 276 | 0.82% | 357 | 1.06% | 231 | 0.69% |
| 茂原市 | 19,395 | 67.62% | 6,962 | 24.28% | 1,238 | 4.32% | 219 | 0.76% | 312 | 1.09% | 203 | 0.71% | 196 | 0.68% | 156 | 0.54% |
| 成田市 | 25,824 | 65.45% | 9,555 | 24.22% | 2,021 | 5.12% | 451 | 1.14% | 351 | 0.89% | 645 | 1.63% | 368 | 0.93% | 242 | 0.61% |
| 佐倉市 | 46,493 | 73.84% | 9,935 | 15.78% | 4,138 | 6.57% | 566 | 0.90% | 541 | 0.86% | 573 | 0.91% | 410 | 0.65% | 305 | 0.48% |
| 東金市 | 16,153 | 66.75% | 5,225 | 21.59% | 1,150 | 4.75% | 345 | 1.43% | 378 | 1.56% | 158 | 0.65% | 624 | 2.58% | 166 | 0.69% |
| 旭市 | 12,445 | 61.71% | 5,898 | 29.25% | 762 | 3.78% | 220 | 1.09% | 230 | 1.14% | 336 | 1.67% | 148 | 0.73% | 128 | 0.63% |
| 習志野市 | 42,636 | 71.64% | 10,312 | 17.33% | 3,936 | 6.61% | 561 | 0.94% | 443 | 0.74% | 870 | 1.46% | 389 | 0.65% | 365 | 0.61% |
| 柏市 | 80,564 | 67.56% | 22,249 | 18.66% | 9,706 | 8.14% | 1,500 | 1.26% | 1,203 | 1.01% | 2,404 | 2.02% | 844 | 0.71% | 780 | 0.65% |
| 勝浦市 | 3,506 | 52.61% | 2,638 | 39.59% | 246 | 3.69% | 66 | 0.99% | 97 | 1.46% | 32 | 0.48% | 39 | 0.59% | 40 | 0.60% |
| 市原市 | 58,223 | 69.13% | 18,522 | 21.99% | 4,179 | 4.96% | 584 | 0.69% | 838 | 1.00% | 448 | 0.53% | 965 | 1.15% | 459 | 0.55% |
| 流山市 | 40,382 | 67.33% | 11,925 | 19.89% | 4,379 | 7.30% | 1,580 | 2.63% | 633 | 1.06% | 340 | 0.57% | 405 | 0.68% | 327 | 0.55% |
| 八千代市 | 45,553 | 72.32% | 10,932 | 17.36% | 4,045 | 6.42% | 558 | 0.89% | 585 | 0.93% | 378 | 0.60% | 533 | 0.85% | 406 | 0.64% |
| 我孫子市 | 28,988 | 67.84% | 8,365 | 19.58% | 3,342 | 7.82% | 692 | 1.62% | 399 | 0.93% | 268 | 0.63% | 434 | 1.02% | 242 | 0.57% |
| 鴨川市 | 7,346 | 62.52% | 3,277 | 27.90% | 523 | 4.45% | 88 | 0.75% | 98 | 0.83% | 84 | 0.71% | 241 | 2.05% | 92 | 0.78% |
| 鎌ケ谷市 | 22,108 | 69.71% | 5,986 | 18.88% | 2,146 | 6.77% | 619 | 1.95% | 283 | 0.89% | 164 | 0.52% | 214 | 0.67% | 195 | 0.61% |
| 君津市 | 19,290 | 67.58% | 6,461 | 22.64% | 1,576 | 5.52% | 203 | 0.71% | 323 | 1.13% | 257 | 0.90% | 244 | 0.85% | 187 | 0.66% |
| 富津市 | 9,317 | 63.66% | 4,097 | 28.00% | 630 | 4.30% | 97 | 0.66% | 238 | 1.63% | 86 | 0.59% | 96 | 0.66% | 73 | 0.50% |
| 浦安市 | 44,307 | 72.35% | 9,481 | 15.48% | 4,280 | 6.99% | 925 | 1.51% | 681 | 1.11% | 469 | 0.77% | 557 | 0.91% | 537 | 0.88% |
| 四街道市 | 24,576 | 76.53% | 5,000 | 15.57% | 1,436 | 4.47% | 250 | 0.78% | 208 | 0.65% | 225 | 0.70% | 180 | 0.56% | 237 | 0.74% |
| 袖ケ浦市 | 14,414 | 67.73% | 5,133 | 24.13% | 934 | 4.39% | 110 | 0.52% | 186 | 0.87% | 261 | 1.23% | 120 | 0.56% | 121 | 0.57% |
| 八街市 | 12,002 | 63.27% | 5,265 | 27.76% | 910 | 4.80% | 151 | 0.80% | 283 | 1.49% | 105 | 0.55% | 128 | 0.67% | 124 | 0.65% |
| 印西市 | 22,976 | 69.42% | 7,277 | 21.99% | 1,616 | 4.88% | 272 | 0.82% | 397 | 1.20% | 172 | 0.52% | 197 | 0.60% | 188 | 0.57% |
| 白井市 | 15,014 | 70.57% | 3,859 | 18.14% | 1,448 | 6.81% | 349 | 1.64% | 193 | 0.91% | 144 | 0.68% | 128 | 0.60% | 140 | 0.66% |
| 富里市 | 9,105 | 63.98% | 3,630 | 25.52% | 767 | 5.39% | 154 | 1.08% | 181 | 1.27% | 118 | 0.83% | 185 | 1.30% | 89 | 0.63% |
| 南房総市 | 8,923 | 61.45% | 4,219 | 29.06% | 756 | 5.21% | 157 | 1.08% | 220 | 1.52% | 84 | 0.58% | 91 | 0.63% | 70 | 0.48% |
| 匝瑳市 | 7,546 | 62.48% | 3,699 | 30.63% | 462 | 3.83% | 97 | 0.80% | 97 | 0.81% | 55 | 0.46% | 75 | 0.62% | 45 | 0.37% |
| 香取市 | 15,642 | 63.21% | 6,677 | 26.99% | 1,137 | 4.59% | 565 | 2.28% | 266 | 1.08% | 142 | 0.57% | 182 | 0.74% | 133 | 0.54% |
| 山武市 | 11,083 | 67.85% | 3,941 | 24.13% | 771 | 4.72% | 94 | 0.58% | 157 | 0.96% | 88 | 0.54% | 108 | 0.66% | 91 | 0.56% |
| いすみ市 | 8,218 | 58.77% | 4,718 | 33.75% | 602 | 4.31% | 63 | 0.45% | 117 | 0.84% | 135 | 0.97% | 60 | 0.43% | 69 | 0.49% |
| 大網白里市 | 12,003 | 66.25% | 4,479 | 24.73% | 958 | 5.29% | 126 | 0.70% | 140 | 0.77% | 137 | 0.76% | 196 | 1.08% | 79 | 0.44% |
| 酒々井町 | 5,302 | 70.70% | 1,379 | 18.39% | 450 | 6.00% | 146 | 1.95% | 70 | 0.93% | 54 | 0.72% | 53 | 0.71% | 45 | 0.60% |
| 栄町 | 5,405 | 69.62% | 1,656 | 21.33% | 386 | 4.97% | 66 | 0.85% | 93 | 1.20% | 51 | 0.66% | 64 | 0.82% | 43 | 0.55% |
| 神崎町 | 1,559 | 62.06% | 685 | 27.27% | 112 | 4.46% | 25 | 1.00% | 34 | 1.35% | 59 | 2.35% | 21 | 0.84% | 17 | 0.68% |
| 多古町 | 4,112 | 71.07% | 1,154 | 19.94% | 258 | 4.46% | 59 | 1.02% | 71 | 1.23% | 36 | 0.62% | 62 | 1.07% | 34 | 0.59% |
| 東庄町 | 2,823 | 59.89% | 1,434 | 30.44% | 184 | 3.90% | 121 | 2.57% | 57 | 1.21% | 32 | 0.68% | 39 | 0.83% | 23 | 0.49% |
| 九十九里町 | 3,268 | 64.83% | 1,331 | 26.40% | 234 | 4.64% | 31 | 0.61% | 51 | 1.01% | 39 | 0.77% | 43 | 0.85% | 44 | 0.87% |
| 芝山町 | 1,492 | 58.44% | 871 | 34.15% | 115 | 4.50% | 15 | 0.59% | 19 | 0.75% | 9 | 0.35% | 21 | 0.82% | 10 | 0.39% |
| 横芝光町 | 5,964 | 68.25% | 2,120 | 24.27% | 341 | 3.90% | 81 | 0.93% | 63 | 0.72% | 39 | 0.45% | 73 | 0.84% | 57 | 0.65% |
| 一宮町 | 3,182 | 66.67% | 1,211 | 25.37% | 185 | 3.88% | 29 | 0.61% | 50 | 1.05% | 54 | 1.13% | 33 | 0.69% | 29 | 0.61% |
| 睦沢町 | 1,841 | 62.30% | 882 | 29.88% | 127 | 4.30% | 21 | 0.71% | 27 | 0.92% | 18 | 0.61% | 25 | 0.85% | 13 | 0.44% |
| 長生村 | 2,907 | 60.52% | 1,355 | 28.23% | 331 | 6.89% | 39 | 0.81% | 44 | 0.92% | 71 | 1.48% | 32 | 0.67% | 23 | 0.48% |
| 白子町 | 2,763 | 61.61% | 1,307 | 29.16% | 213 | 4.75% | 38 | 0.85% | 44 | 0.98% | 26 | 0.58% | 58 | 1.29% | 35 | 0.78% |
| 長柄町 | 1,874 | 67.87% | 673 | 24.41% | 125 | 4.53% | 15 | 0.54% | 31 | 1.13% | 9 | 0.33% | 16 | 0.58% | 17 | 0.62% |
| 長南町 | 2,142 | 62.65% | 1,050 | 30.74% | 116 | 3.39% | 20 | 0.58% | 20 | 0.59% | 38 | 1.11% | 22 | 0.64% | 10 | 0.29% |
| 大多喜町 | 1,994 | 57.65% | 1,222 | 35.33% | 124 | 3.58% | 22 | 0.64% | 44 | 1.27% | 16 | 0.46% | 25 | 0.72% | 12 | 0.35% |
| 御宿町 | 1,679 | 56.25% | 1,076 | 36.08% | 136 | 4.56% | 33 | 1.11% | 14 | 0.47% | 12 | 0.40% | 21 | 0.70% | 13 | 0.44% |
| 鋸南町 | 1,712 | 48.00% | 1,566 | 43.93% | 167 | 4.68% | 29 | 0.81% | 30 | 0.84% | 20 | 0.56% | 24 | 0.67% | 18 | 0.50% |