Yıldan yıla gerileyen Arapgir nüfusu 2011 yılında 6152 ile gerilemeyi durdurmuş. Bu sene 6288 sayısı ile de İlçe Merkez Nüfusu artışa geçmiştir. Bu artışta İlçeye yapılan kurumsal yatırımların  yanı sıra değerli İşadamlarımızın yaptığı kurumsal yatırımların da büyük payı bulunmaktadır.

     Köyler dahil toplam nüfus 2010 yılında 11.054 iken 2011 yılında ise toplam nüfus 11.128 artmıştır. Kırsalda ise nüfus sayısında 62 gerileme olmuştur.
Arapgir                            

Merkez                                   6.288                           3.091                  3.197
Aktaş                                        210                               84                      126

Alıçlı                                           90                                36                        54

Boğazlı                                      142                               74                       68

Çakırsu                                     124                               61                       63

Çaybaşı                                     21                                 10                       11

Çiğnir                                         64                                 27                       37

Çimen                                        24                                  8                        16

Deregezen                               128                                64                       64 

Düzce                                        68                                  35                       33    

Eğnir                                          95                                  51                       44

Esikli                                        127                                 61                        66

Eskiarapgir                             88                                  46                         42

Gebeli                                       45                                  23                        22

Gözeli                                       70                                  41                        29

Günyüzü                                 100                                 53                        47

Kayakesen                             94                                 46                          48

Kaynak                                    46                                  23                         23

Kazanç                                     86                                46                          40

Kılıçlı                                        122                               56                         66

Konducak                               285                               143                       142

Koru                                         462                              218                        244

Meşeli                                      38                                15                          23

Onar                                        228                               113                        115

Ormansırtı                             70                                 38                           32

Pacalı                                    161                                 83                           78

Pirali                                      38                                  16                            22

Şağıluşağı                            49                                    27                          22

Selamlı                                  56                                   22                           34

Sinikli                                    74                                   40                           34

Sipahiuşağı                          72                                   39                           33

Suceyin                                 170                                 80                           90

Sugeçti                                  45                                   23                          22

Tarhan                                   83                                   42                          41

Taşdelen                               63                                   35                          28

Taşdibek                               30                                   16                          14

Ulaçlı                                      72                                    30                          42

Yaylacık                                163                                  73                           90

Yazılı                                      122                                  65                          57

Yeşilyayla                              67                                   32                          35

Yukarıyabanlı                       73                                    33                           40