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Number of lower secondary school teachers (Number)
| 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 |
| Ha Noi | 9.810 | 20.689 | 20.134 | 20.455 | 20.782 | 20.563 | 21.392 | 21.985 | 21.785 | 18.112 | 19.809 | 21.992 |
| Vĩnh Phúc | 5.268 | 4.274 | 4.260 | 4.131 | 4.204 | 4.133 | 4.081 | 3.832 | 3.754 | 3.486 | 3.549 | 3.562 |
| Bắc Ninh | 3.866 | 3.847 | 3.802 | 3.886 | 3.818 | 3.885 | 4.126 | 4.165 | 4.125 | 3.061 | 3.981 | 3.962 |
| Quảng Ninh | 4.952 | 4.667 | 4.527 | 4.522 | 4.617 | 4.151 | 4.161 | 4.122 | 4.028 | 4.594 | 3.909 | 4.001 |
| Hải Dương | 6.366 | 6.057 | 6.163 | 6.169 | 5.977 | 5.828 | 5.821 | 5.687 | 5.590 | 4.868 | 4.914 | 5.022 |
| Hai Phong | 6.986 | 6.210 | 5.897 | 5.959 | 5.907 | 5.819 | 5.698 | 5.507 | 5.349 | 5.186 | 4.968 | 5.335 |
| Hưng Yên | 4.291 | 4.304 | 4.266 | 4.368 | 4.269 | 4.253 | 4.305 | 4.286 | 4.136 | 3.660 | 3.592 | 3.589 |
| Thái Bình | 7.212 | 6.769 | 6.912 | 6.769 | 6.958 | 6.791 | 6.686 | 6.384 | 6.174 | 4.776 | 5.571 | 5.449 |
| Hà Nam | 3.247 | 3.187 | 3.055 | 2.963 | 2.956 | 2.941 | 2.846 | 2.826 | 2.326 | 2.448 | 2.379 | 2.441 |
| Nam Định | 7.257 | 6.766 | 6.782 | 6.793 | 6.657 | 6.539 | 6.308 | 6.278 | 6.232 | 5.954 | 5.793 | 5.717 |
| Ninh Bình | 3.685 | 3.346 | 3.304 | 3.324 | 3.304 | 3.352 | 3.345 | 3.329 | 3.240 | 3.211 | 3.149 | 3.163 |
| Hà Giang | 2.856 | 3.795 | 3.611 | 3.909 | 3.887 | 3.834 | 3.873 | 3.825 | 3.807 | 3.808 | 3.589 | 3.542 |
| Cao Bằng | 2.181 | 2.768 | 2.577 | 2.601 | 2.582 | 2.549 | 2.507 | 2.504 | 2.441 | 2.333 | 2.239 | 2.184 |
| Bắc Kạn | 1.476 | 1.461 | 1.306 | 1.313 | 1.321 | 1.349 | 1.339 | 1.361 | 1.343 | 1.183 | 1.218 | 1.182 |
| Tuyên Quang | 3.482 | 3.011 | 2.566 | 2.922 | 2.880 | 2.826 | 2.837 | 2.831 | 2.717 | 2.087 | 2.438 | 2.493 |
| Lào Cai | 3.137 | 3.565 | 3.558 | 3.521 | 3.471 | 3.503 | 3.508 | 3.374 | 3.353 | 3.278 | 3.061 | 3.085 |
| Yên Bái | 3.514 | 3.298 | 3.312 | 3.289 | 3.194 | 3.160 | 3.082 | 3.014 | 2.886 | 2.940 | 2.812 | 2.715 |
| Thái Nguyên | 4.850 | 4.193 | 3.681 | 3.879 | 4.028 | 4.008 | 4.010 | 3.990 | 3.918 | 3.480 | 3.570 | 3.503 |
| Lạng Sơn | 4.385 | 4.355 | 4.213 | 4.027 | 4.125 | 3.965 | 3.899 | 3.822 | 3.713 | 3.456 | 3.223 | 3.186 |
| Bắc Giang | 6.843 | 6.695 | 6.577 | 6.735 | 6.710 | 6.540 | 6.395 | 6.321 | 6.381 | 6.245 | 6.062 | 6.012 |
| Phú Thọ | 6.149 | 5.972 | 5.796 | 5.824 | 5.837 | 5.837 | 5.898 | 5.874 | 5.706 | 5.195 | 4.993 | 5.019 |
| Dien Bien | 2.224 | 2.897 | 2.645 | 2.989 | 2.669 | 2.609 | 2.587 | 2.742 | 2.752 | 2.809 | 2.724 | 2.758 |
| Lai Châu | 1.332 | 1.948 | 2.094 | 2.040 | 2.212 | 2.205 | 2.118 | 2.104 | 2.051 | 2.076 | 2.084 | 2.029 |
| Sơn La | 4.851 | 5.224 | 5.163 | 5.103 | 5.098 | 5.104 | 5.116 | 5.099 | 5.065 | 4.781 | 4.691 | 4.772 |
| Hòa Bình | 4.519 | 4.551 | 4.143 | 4.437 | 4.102 | 3.998 | 3.946 | 3.907 | 3.755 | 3.399 | 3.535 | 3.598 |
| Thanh Hóa | 15.551 | 15.277 | 14.390 | 13.736 | 14.291 | 12.826 | 13.139 | 12.370 | 11.494 | 11.018 | 10.558 | 10.407 |
| Nghệ An | 14.225 | 13.685 | 13.252 | 13.262 | 12.843 | 12.495 | 12.182 | 11.837 | 11.454 | 10.781 | 10.293 | 10.167 |
| Hà Tĩnh | 6.559 | 6.027 | 5.754 | 5.744 | 5.488 | 5.303 | 5.194 | 5.060 | 4.971 | 4.873 | 4.699 | 4.601 |
| Quảng Bình | 4.081 | 3.679 | 3.598 | 3.657 | 3.544 | 3.558 | 3.600 | 3.431 | 3.367 | 2.977 | 3.018 | 2.944 |
| Quảng Trị | 3.319 | 3.273 | 3.189 | 3.198 | 3.112 | 2.944 | 2.973 | 2.878 | 2.758 | 2.624 | 2.533 | 2.558 |
| Thừa Thiên–Huế | 4.312 | 4.797 | 4.468 | 4.938 | 4.808 | 4.615 | 4.450 | 4.324 | 4.259 | 3.939 | 3.793 | 3.811 |
| Da Nang | 2.834 | 2.765 | 2.754 | 2.813 | 2.721 | 2.775 | 2.774 | 2.792 | 2.942 | 2.659 | 3.011 | 2.959 |
| Quảng Nam | 5.911 | 6.028 | 5.942 | 6.039 | 5.916 | 6.026 | 6.034 | 5.964 | 5.743 | 5.195 | 5.112 | 4.829 |
| Quảng Ngãi | 4.854 | 5.191 | 5.090 | 5.277 | 5.063 | 5.100 | 5.146 | 5.077 | 4.900 | 4.396 | 4.400 | 4.306 |
| Bình Định | 4.945 | 5.287 | 5.262 | 5.267 | 5.284 | 5.174 | 5.163 | 5.087 | 5.018 | 4.988 | 4.700 | 4.630 |
| Phú Yên | 3.935 | 4.025 | 4.302 | 4.122 | 4.178 | 4.091 | 4.013 | 4.029 | 3.924 | 3.694 | 3.580 | 3.424 |
| Khánh Hòa | 4.099 | 4.177 | 4.126 | 4.222 | 4.163 | 4.251 | 4.275 | 4.185 | 4.218 | 4.078 | 3.893 | 3.751 |
| Ninh Thuận | 1.879 | 2.237 | 2.082 | 2.023 | 2.172 | 2.203 | 2.166 | 2.163 | 2.163 | 1.876 | 1.942 | 1.931 |
| Bình Thuận | 4.165 | 4.803 | 4.761 | 4.772 | 4.813 | 4.783 | 4.766 | 4.696 | 4.569 | 4.041 | 4.387 | 4.340 |
| Kon Tum | 2.251 | 2.472 | 2.479 | 2.598 | 2.655 | 2.660 | 2.593 | 2.636 | 2.587 | 2.491 | 2.476 | 2.477 |
| Gia Lai | 4.154 | 5.036 | 4.996 | 5.170 | 5.262 | 5.174 | 5.210 | 5.087 | 5.024 | 4.752 | 4.649 | 4.543 |
| Dac Lac | 6.564 | 7.672 | 7.560 | 7.751 | 8.022 | 7.887 | 7.898 | 7.944 | 7.828 | 7.141 | 7.164 | 7.054 |
| Đắk Nông | 1.640 | 2.123 | 2.189 | 2.232 | 2.245 | 2.302 | 2.318 | 2.296 | 2.233 | 2.306 | 2.196 | 2.262 |
| Lâm Đồng | 4.477 | 4.970 | 4.741 | 5.276 | 4.757 | 4.973 | 4.962 | 4.937 | 4.868 | 4.581 | 4.667 | 4.706 |
| Bình Phước | 2.772 | 3.363 | 3.288 | 2.838 | 3.530 | 3.571 | 3.600 | 3.646 | 3.536 | 3.708 | 3.715 | 3.715 |
| Tây Ninh | 3.543 | 3.372 | 3.313 | 3.253 | 3.286 | 3.255 | 3.352 | 3.319 | 3.281 | 3.304 | 3.163 | 3.010 |
| Bình Dương | 2.467 | 2.825 | 2.896 | 3.255 | 3.413 | 3.756 | 3.902 | 4.210 | 4.590 | 4.461 | 4.447 | 4.554 |
| Đồng Nai | 7.014 | 7.504 | 7.513 | 7.582 | 7.697 | 7.826 | 7.959 | 7.982 | 8.051 | 8.145 | 8.078 | 8.157 |
| Bà Rịa–Vũng Tàu | 3.236 | 3.538 | 3.508 | 3.548 | 3.614 | 3.612 | 3.743 | 3.702 | 3.697 | 3.069 | 3.697 | 3.618 |
| Ho Chi Minh [Sai Gon] | 13.572 | 14.302 | 16.081 | 15.955 | 16.681 | 17.246 | 17.393 | 17.548 | 17.794 | 15.121 | 17.056 | 17.330 |
| Long An | 4.367 | 4.754 | 4.775 | 5.077 | 4.984 | 4.957 | 4.856 | 4.789 | 4.731 | 4.626 | 4.493 | 4.326 |
| Tiền Giang | 5.132 | 4.909 | 4.852 | 4.840 | 4.789 | 4.913 | 4.992 | 4.883 | 4.877 | 4.794 | 4.661 | 4.572 |
| Bến Tre | 4.451 | 4.344 | 4.302 | 4.451 | 4.270 | 4.247 | 4.241 | 4.210 | 4.112 | 4.280 | 3.993 | 3.882 |
| Trà Vinh | 3.834 | 3.525 | 3.490 | 3.518 | 3.442 | 3.488 | 3.515 | 3.555 | 3.564 | 3.480 | 3.413 | 3.370 |
| Vĩnh Long | 3.420 | 3.538 | 3.530 | 3.537 | 3.512 | 3.515 | 3.505 | 3.488 | 3.407 | 3.343 | 3.237 | 3.108 |
| Đồng Tháp | 4.974 | 5.122 | 5.423 | 5.012 | 5.016 | 5.023 | 4.974 | 4.971 | 5.006 | 4.990 | 4.789 | 4.738 |
| An Giang | 5.434 | 6.796 | 6.737 | 6.833 | 7.048 | 7.038 | 6.951 | 6.868 | 6.847 | 6.696 | 6.671 | 6.621 |
| Kiên Giang | 4.973 | 5.366 | 5.347 | 5.423 | 5.358 | 5.276 | 5.322 | 5.329 | 5.295 | 5.348 | 5.155 | 5.092 |
| Cần Thơ | 2.996 | 3.205 | 3.144 | 3.315 | 3.234 | 3.357 | 3.379 | 3.440 | 3.453 | 3.315 | 3.325 | 3.319 |
| Hậu Giang | 2.165 | 2.212 | 2.151 | 2.272 | 2.252 | 2.029 | 2.312 | 2.293 | 2.326 | 2.304 | 2.229 | 2.202 |
| Sóc Trăng | 3.667 | 4.037 | 4.281 | 4.367 | 4.368 | 4.416 | 4.491 | 4.416 | 4.352 | 4.211 | 4.052 | 3.944 |
| Bạc Liêu | 2.441 | 2.210 | 2.205 | 2.249 | 2.272 | 2.251 | 2.309 | 2.323 | 2.355 | 2.324 | 2.270 | 2.257 |
| Cà Mau | 3.738 | 3.948 | 3.855 | 3.839 | 3.925 | 3.929 | 3.990 | 4.019 | 3.889 | 3.653 | 3.563 | 3.563 |