This article is a little dated but it indicates the growth of Muslim mosques and the number of mosques in our country.
Churches are being transformed into mosques in the US: This is not a good signAs Christians, we need to understand the reality of Islam’s teachings and its growth in the world. This is not for us to be scared or angered, but instead to have a truth-based perspective when prioritizing missions to Muslims, especially those who live in our backyard.
In ten years, Islam saw a 31% increase in mosques in the United States, making their total number over 2,700. This ties in with the growing population of Muslims in the United States, which is growing twice as fast as any religious group because of immigration and high birth rates.
Many mosques are built in highly populated areas by wealthy Muslims or Islamic countries, but there is another way the number of mosques is growing– by taking over the space of abandoned churches.
There are numerous instances of this happening all around the country. For Muslims, this is more than the signing of a deed passing from one group to another. This is exactly what their end goal includes. They believe they are destined to rule the world and all people will come to be Muslims..................
...............Rich Muslim families and businesses often fund the building of a mosque to receive more favor from Allah. They also receive more respect from their peers and the Muslim community.
When a Muslim Da’awa group plans to reach certain neighborhoods or communities in a city, or when their congregation grows, they either build a new mosque on land they purchase or look for pre-built structures to renovate and use as mosques.
However, many of the Muslim Da’awa groups seek to buy old church buildings to use for their new mosques. Such an act is very meaningful to them because it is a statement of Islam’s expansion, taking over Christian influence, which is ultimately Islam’s goal.
Stories of this are happening in Connecticut, Florida, New York, and Michigan (Source). The saddest part of these purchases is that the first step is always removing any Christian symbols from the building. Stained glass windows are removed, altars are torn down, and crosses are replaced with Quranic verses. .....................
https://www.calloflove.org/post/churches-are-being-transformed-into-mosques-in-the-us-this-is-not-a-good-sign