Demons exist everywhere(worldwide).The following is one of my reply to one sister that asked me a similar question from abroad.
Q: Why is't issues of demons are most addressed by West African Pastors, especially Nigerian Pastor; doesn't have to do with the environment where people lives compare to other countries?
A:I thank God for this life of the sister that wrote me from South Africa with the above stated question. After answering her privately; just because of inside deep or important of the question and its alertness answers; I also decided to treat the issue for the attention of all. Because also, in the past I have had the opportunity receiving many funny questions from U.S.A. like: those God really exist? Is demons existence real?
Before evaluating the issue from a sister in South Africa, let's look at what (Mark 1:23-26) is telling us ďand there was in their synagogue a man with an unclean spirit; and he cried out, saying, let us alone; what have we to do with thee, thou Jesus of Nazareth? Art thou come to destroy us? I know thee who thou art; He Holy one of God. And Jesus rebuked him, saying, hold thy peace, and come out of him. And when the unclean spirit had torn him, and cried with a loud voice, he came out of himĒ.
Demons are evil spirit without bodies and always seeking bodies to operate in and out (Eph. 6:12; Matt. 8:29; Jude 6; Mark 1:23-24; Matt. 12:24; Mark 5:13; Mark 5:2; Matt. 12:43-45).
Demons doesn't die when any mankind they possessed dies. They simply leave such a body and for look out for another body to-possess until their actual time of death in hell fire. As concluded by God and their case files close by living God in Heaven (Lord Jesus Christ).
The origin of demons came into being as a result of Satan's rebellion and fall. The company of falling spirits now constitute the arrows of the kingdom of darkness establishes hierarchies (Eph. 6:12). Characteristics of demons are: they have life; they have intelligence; they work for Satan; they bows at the mention of the name of Lord Jesus Christ (Phil. 2:10); they hate God and mankind; they know that their time is very, very short (Matt. 8:28, 29).
Every given country, state, city, town, village have what we call a ruling demons in charge of such places. Just like, as we have government authorities in places (worldwide). On God's side also, God also have several millions of His Angels here on earth
with us; that are moving to and fro, thereby making sure peace of the Lord remain with every covenanted children of God here on planet earth.
Straight to the question properly; issues of demons are widely addressed by many West African Pastors(especially Nigerians).Taking Nigeria for instance as a case study. We have so many great Men and Women of God; viewing them from their high level of anointing (teaching and researching, revelation gifts, miracle, healing/deliverance, etc..). Many can sub-pass many of those big names abroad we use to hear about in Africa .Beside that, we more serious with God; fears and obeys him the more. We doesn't preaches or believes as many of such foreign ministers does like (it doesn't matter spirits ; supporting/promoting: Gay/lesbianism acts and marriages; allowing half naked women to enter their churches without correcting them, etc..When compared to some of our foreign counterpart in Europe/America for instance. How do you expect God to reveal many sensitive things unto them; when they are compromising their faith and crucifying Lord Jesus the second time. Though I know quite well not all are guilty of that. But, larger percentage of them are guilty of that.
Demons are everywhere (worldwide) and not only in West Africa. For instance demons in America/Europe (Western Countries) are more intelligent on the ground that they are causing so much problems for many people in Western Countries without their victims knowing in time. Demons in-there are specialist or causers of high rate of marriage separations and divorces when compared to Africanís side. Demons in Western Countries are also gaining much ground by manipulating many people that are : committing suicide, going into gay lesbian marriages. Manipulating many people to be recruited into porn promotions/investments/participations. Even some having fun with their pets; some going into incest acts. Even some marriages spouses for instance allows stranger or hired men or women prostitutes to join them for fun within their marital homes/beds(to them it doesn't matter). In Africa for instance it is forbidden and also a great abomination before Most High God. No wonder the Holy Bible keep telling us; there is way that seemeth good unto a man at the end of the road is destruction.