Geography
Eastern Samar covers a total area of 4,660.47 square kilometres (1,799.42 sq mi) occupying the eastern section of Samar island in the Eastern Visayas region. The province is bordered to the north by Northern Samar and to the west by Samar. To the east lies the Philippine Sea, part of the vast Pacific Ocean, while to the south lies the Leyte Gulf. Because it faces the Philippine Sea of the Pacific Ocean, Eastern Samar suffers heavily from powerful typhoons.
Administrative divisions
Eastern Samar comprises 22 municipalities and one city, all encompassed by a single legislative district.
| City or Municipality | Population | ±% p.a. | Area | Density | Brgy. | |||||
| -2015 | -2010 | km2 | sq mi | /km2 | /sq mi | |||||
| Arteche | 3.40% | 16,026 | 15,164 | 1.06% | 169.82 | 65.57 | 94 | 240 | 20 | |
| Balangiga | 3.00% | 14,085 | 12,756 | 1.90% | 190.05 | 73.38 | 74 | 190 | 13 | |
| Balangkayan | 2.20% | 10,125 | 9,046 | 2.17% | 207.05 | 79.94 | 49 | 130 | 15 | |
| Borongan | † | 14.80% | 69,297 | 64,457 | 1.39% | 475 | 183.4 | 150 | 390 | 61 |
| Can-avid | 4.50% | 21,015 | 19,785 | 1.15% | 288.7 | 111.47 | 73 | 190 | 28 | |
| Dolores | 9.20% | 42,866 | 37,912 | 2.37% | 308.58 | 119.14 | 140 | 360 | 46 | |
| General MacArthur | 3.10% | 14,550 | 12,214 | 3.39% | 117.29 | 45.29 | 120 | 310 | 30 | |
| Giporlos | 2.80% | 13,308 | 12,040 | 1.92% | 97.51 | 37.65 | 140 | 360 | 18 | |
| Guiuan | 11.30% | 52,991 | 47,037 | 2.30% | 175.49 | 67.76 | 300 | 780 | 60 | |
| Hernani | 1.80% | 8,573 | 8,070 | 1.16% | 49.42 | 19.08 | 170 | 440 | 13 | |
| Jipapad | 1.70% | 7,885 | 7,397 | 1.22% | 234.8 | 90.66 | 34 | 88 | 13 | |
| Lawaan | 2.70% | 12,742 | 11,612 | 1.78% | 162.56 | 62.76 | 78 | 200 | 16 | |
| Llorente | 4.30% | 20,149 | 19,101 | 1.02% | 496.07 | 191.53 | 41 | 110 | 33 | |
| Maslog | 1.20% | 5,407 | 4,781 | 2.37% | 249.8 | 96.45 | 22 | 57 | 12 | |
| Maydolong | 3.20% | 14,743 | 13,614 | 1.53% | 399.63 | 154.3 | 37 | 96 | 20 | |
| Mercedes | 1.30% | 6,070 | 5,369 | 2.36% | 23.32 | 9 | 260 | 670 | 16 | |
| Oras | 7.80% | 36,540 | 34,760 | 0.96% | 188.7 | 72.86 | 190 | 490 | 42 | |
| Quinapondan | 3.20% | 14,779 | 13,841 | 1.26% | 83.24 | 32.14 | 180 | 470 | 25 | |
| Salcedo | 4.80% | 22,532 | 19,970 | 2.32% | 113.8 | 43.94 | 200 | 520 | 41 | |
| San Julian | 3.10% | 14,498 | 13,748 | 1.02% | 150.62 | 58.15 | 96 | 250 | 16 | |
| San Policarpo | 3.10% | 14,687 | 13,836 | 1.14% | 78 | 30.12 | 190 | 490 | 17 | |
| Sulat | 3.30% | 15,377 | 15,184 | 0.24% | 169.75 | 65.54 | 91 | 240 | 18 | |
| Taft | 4.00% | 18,915 | 17,183 | 1.85% | 231.27 | 89.29 | 82 | 210 | 24 | |
| Total | 467,160 | 428,877 | 1.64% | 4,660.47 | 1,799.42 | 100 | 260 | 597 | ||