Kekristenan di Sumatera Utara
Pemeluk Kristen Menurut Kabupaten/Kota

Pemeluk agama Kristen di Sumatera Utara umumnya berasal dari suku Batak (Toba, Karo, Simalungun, Pakpak dan sebagian Angkola dan Mandailing), Nias, dan sebagian lagi dari Tionghoa, Jawa, serta pendatang dari Indonesia Timur seperti orang Minahasa, NTT, Maluku dan Papua. Berdasarkan data Kementerian Dalam Negeri tahun 2021, persentasi pemeluk agama Kristen di Sumatera Utara sebanyak 31,21%, di mana mayoritas Protestan yakni 26,90% dan Katolik 4,31%.
Berikut adalah data pemeluk agama Kristen di provinsi Sumatera Utara, berdasarkan data Kementerian Dalam Negeri hingga 30 Juni 2021:
| Pemeluk agama Kristen di provinsi Sumatera Utara 2021 |
| --- | --- | --- | --- | --- | --- | --- |
| No | Kabupaten/Kota | Jumlah Penduduk  2021 | Jumlah Pemeluk  Protestan | Jumlah Pemeluk  Katolik | Total Pemeluk  Kristen | Keterangan |
| 1 | Kabupaten Nias | 145.173 | 125.094 (86,17%) | 18.403 (12,68%) | 143.497 (98,85%) |  |
| 2 | Kabupaten Samosir | 141.869 | 85.741 (60,44%) | 53.481 (37,70%) | 139.22 (98,14%) |  |
| 3 | Kabupaten Nias Barat | 96.608 | 75.726 (78,38%) | 18.730 (19,39%) | 94.456 (97,77%) |  |
| 4 | Kabupaten Nias Selatan | 367.473 | 287.209 (78,16%) | 71.026 (19,33%) | 358.235 (97,49%) |  |
| 5 | Kabupaten Humbang Hasundutan | 203.816 | 171.092 (83,95%) | 26.297 (12,90%) | 197.389 (96,85%) |  |
| 6 | Kabupaten Tapanuli Utara | 320.542 | 289.857 (90,43%) | 15.241 (04,75%) | 305.098 (95,18%) |  |
| 7 | Kabupaten Nias Utara | 151.684 | 120.883 (79,58%) | 22.801 (15,01%) | 143.684 (94,59%) |  |
| 8 | Kabupaten Toba | 213.347 | 182.598 (85,59%) | 15.740 (07,38%) | 198.338 (92,97%) |  |
| 9 | Kota Gunungsitoli | 136.873 | 108.373 (79,18%) | 10.058 (07,35%) | 118.431 (86,53%) |  |
| 10 | Kabupaten Dairi | 318.616 | 229.316 (71,97%) | 36.927 (11,59%) | 266.243 (83,56%) |  |
| 11 | Kabupaten Karo | 409.280 | 236.677 (57,83%) | 61.215 (14,96%) | 297.892 (72,79%) |  |
| 12 | Kabupaten Pakpak Bharat | 55.183 | 31.289 (56,70%) | 2.064 (03,74%) | 33.353 (60,44%) |  |
| 13 | Kabupaten Tapanuli Tengah | 365.460 | 164.215 (44,93%) | 45.499 (12,45%) | 209.714 (57,38%) |  |
| 14 | Kota Pematangsiantar | 273.523 | 121.942 (44,58%) | 15.668 (05,73%) | 137.610 (50,31%) |  |
| 15 | Kabupaten Simalungun | 1.038.120 | 386.726 (37,25%) | 58.478 (05,64%) | 445.204 (42,89%) |  |
| 16 | Kota Sibolga | 94.970 | 32.045 (33,74%) | 4.808 (05,06%) | 36.853 (38,80%) |  |
| 17 | Kota Medan | 2.524.511 | 480.471 (19,03%) | 62.570 (02,48%) | 543.041 (21,51%) |  |
| 18 | Kabupaten Tapanuli Selatan | 314.887 | 61.640 (19,58%) | 4.190 (01,33%) | 65.830 (20,91%) |  |
| 19 | Kabupaten Deli Serdang | 1.940.767 | 324.476 (16,72%) | 54.241 (02,81%) | 378.717 (19,53%) |  |
| 20 | Kabupaten Labuhanbatu Utara | 395.476 | 61.350 (15,51%) | 6.956 (01,76%) | 68.306 (17,27%) |  |
| 21 | Kabupaten Labuhanbatu | 505.388 | 69.394 (13,73%) | 8.312 (01,65%) | 77.706 (15,38%) |  |
| 22 | Kabupaten Labuhanbatu Selatan | 324.545 | 44.510 (13,72%) | 2.635 (00,81%) | 47.145 (14,53%) |  |
| 23 | Kabupaten Serdang Bedagai | 668.496 | 85.477 (12,79%) | 8.833 (1,32%) | 94.310 (14,11%) |  |
| 24 | Kota Tebing Tinggi | 176.429 | 21.312 (12,08%) | 2.170 (1,23%) | 23.482 (13,31%) |  |
| 25 | Kabupaten Batubara | 422.448 | 38.784 (09,18%) | 6.931 (01,64%) | 45.715 (10,82%) |  |
| 26 | Kabupaten Padang Lawas Utara | 269.845 | 25.205 (09,34%) | 1.099 (00,41%) | 26.304 (09,75%) |  |
| 27 | Kabupaten Asahan | 790.133 | 69.303 (08,77%) | 6.261 (00,79%) | 75.569 (09,56%) |  |
| 28 | Kota Padang Sidempuan | 228.125 | 19.265 (08,44%) | 1.500 (00,66%) | 20.765 (09,10%) |  |
| 29 | Kota Binjai | 297.448 | 22.357 (07,52%) | 3.248 (01,09%) | 25.605 (08,61%) |  |
| 30 | Kota Tanjungbalai | 179.035 | 13.191 (07,37%) | 1.453 (00,81%) | 14.644 (08,18%) |  |
| 31 | Kabupaten Langkat | 1.057.605 | 74.758 (07,07%) | 5.069 (00,48%) | 79.827 (07,55%) |  |
| 32 | Kabupaten Mandailing Natal | 489.569 | 18.251 (03,73%) | 1.650 (00,34%) | 19.901 (04,07%) |  |
| 33 | Kabupaten Padang Lawas | 263.328 | 5.180 (01,97%) | 260 (00,10%) | 5.440 (02,07%) |  |
| - | Sumatera Utara | 15.180.796 | 4.083.712 (26,90%) | 653.814 (04,31%) | 4.737.526 (31,21%) |  |