Historians think that about 180,000 people died from fighting, accidents and disease. That was about 3.6% of the population. (In World War 1 around 2.6% of the population died). The Civil War also saw terrible events. For example, in May 1644 Royalists massacred the Parliament forces in Bolton. This was provoked by the Parliament troops hanging several Royalist prisoners during the battle.
As in most wars, civilians suffered a nightmare experience. Royalists and Parliamentarians were constantly trying to force men to serve in their armies. Both sides took horses, food and other supplies for their armies. Both sides forced people to provide free food and shelter to whichever troops turned up in their village or farm. In some areas people formed their own armies to keep the Royalists and Parliamentarians away from their homes. There was widespread fear that army discipline would collapse and law and order would break down.
As the war went on Parliament gained the upper hand. One of the reasons for this was their effective use of the lands they controlled, especially London, with its large population and great wealth. Parliament appointed loyal men to be on County Committees. These men collected the taxes Parliament needed, rounded up horses and supplies for the army, and carried out any other commands Parliament sent out. The County Committees were often harsh and ruthless, but they were effective. This helps to explain why Parliament won the war. They were able to keep large armies supplied better than the Royalists. As Parliament forces took over more of the country, the rule of County Committees spread.
Strangely, this factor eventually helped to increase support for Charles I. The County Committees were so good at collecting taxes that they made Charles’s rule appear to be less harsh! There were other concerns as well. Many of the men in County Committees were Puritans. They believed that churches and church services should be simple. In many areas they destroyed the decorations, statues and paintings in local churches. This sometimes upset local people.
Another factor that concerned people was the growing power of the army. The army needed heavy taxes to pay for it. Some of the army commanders were also MPs and Puritans. As time went on the army became an important political force. Many people were suspicious of this. They believed that the army should not have political ideas. It should simply do what Parliament or the king told it to do. All of these factors helped to turn people towards Charles. It was not so much that they loved the king. Rather, it was that rule by the king was less unpleasant than rule by Parliament and the army.