Diocese

A diocese is a special area in the world that is looked after by a bishop in church work. Think of it like a neighborhood where one leader, called a bishop, helps guide and support the people who live and pray there. This idea comes from how churches organize themselves to best serve their communities.

Each diocese has its own group of churches, schools, and other places where people gather for faith and learning. The bishop works with priests and other leaders in these places to make sure everyone feels cared for and has a chance to grow in their beliefs.

The word "diocese" comes from old times and has been used for many years in many different churches. It helps keep order and care in the way people practice their faith and support each other in their everyday lives.

History

See also: Bishops and civil government

In the later days of the Roman Empire, areas were grouped into bigger units called dioceses. This word comes from a Latin word meaning "administration."

When Christianity became allowed in the year 313, churches started organizing themselves into areas called dioceses, often matching the way the Roman government had set up its areas. Over time, these church areas stayed even as the old Roman ways changed. Today, when we talk about a diocese, we usually mean the area a bishop is in charge of. This idea became common in the Carolingian Empire during the 9th century.

Archdiocese

Some special church areas are led by a special leader called an archbishop. These areas are called archdioceses. Many of these archdioceses are very important and are at the top of a group of church areas.

In the Catholic Church, the word "archdiocese" is not officially used in their rules. The words "diocese" and "episcopal see" are used instead for any area led by a bishop. Even if a bishop is given the title of archbishop for personal reasons, it does not change his diocese into an archdiocese.

Catholic Church

Further information: List of Catholic dioceses

In the Catholic Church, a diocese is a group of people led by a bishop. It is like a special part of the Church, with its own leader and community. These areas are often organized into larger groups called ecclesiastical provinces, with one main diocese called an archdiocese helping to coordinate activities.

As of December 2024, there are 2,898 such areas in the world, each with its own leader. Some parts of the Church, especially those with Eastern traditions, use slightly different names but have similar structures. Each diocese works on important tasks like teaching and supporting its members.

Eastern Orthodox Church

Further information: List of Eastern Orthodox bishops and archbishops and Eparchy

The Eastern Orthodox Church has special names for areas led by a bishop. In Greek traditions, these areas are called episkopes, and in Slavic traditions, they are called eparchies.

Lutheran churches

Further information: List of Lutheran dioceses and archdioceses

Some Lutheran church groups, like the Church of Sweden, have areas called dioceses that are led by a bishop, similar to how some other churches are organized. Other Lutheran churches with bishops include the Church of Denmark, the Evangelical Lutheran Church of Finland, the Evangelical Church in Germany (partially), and the Church of Norway.

In the past, many bishops in the Holy Roman Empire also had political power over small areas. Today, some Lutheran churches in America, such as the Evangelical Lutheran Church in America, are organized differently and do not use dioceses. Instead, they are split into regions called middle judicatories. The Lutheran Church - International, located in Springfield, Illinois, follows a traditional diocesan setup with four dioceses in North America.

Anglican Communion

Further information: List of Anglican Communion dioceses

After the English Reformation, the Church of England kept its old way of organizing areas called dioceses. This system is still used today in the Anglican Communion. The only difference is that the areas led by the Archbishop of Canterbury and the Archbishop of York are called dioceses, not bigger areas called archdioceses. These leaders are important bishops for their areas and also bishops of their own dioceses.

In the Anglican Church in Aotearoa, New Zealand and Polynesia, the rules use the words "Episcopal Unit" for both dioceses and pīhopatanga. This is because of its special system that includes three cultures. Pīhopatanga are areas led by Māori bishops. These areas overlap with the "New Zealand dioceses," which are led by bishops from European backgrounds, but they are not called dioceses.

Pentecostalism

Church of God in Christ

The Church of God in Christ (COGIC) has areas called dioceses all across the United States. In COGIC, most states are split into three or more of these areas, each led by a bishop, who is sometimes called a "state bishop". Some states even have up to ten of these areas, and they are called "jurisdictions" in COGIC.

Church of Jesus Christ of Latter-day Saints

In the Church of Jesus Christ of Latter-day Saints, the word "bishopric" means a bishop and his two helpers, not the ward or group of people he leads.

A diocese is most like a stake in this church. A stake is led by a stake president who works with two helpers, much like a bishop and his helpers.

Catharism

A group called the Cathars, who believed in ideas like those of the Gnostics, set up their own church areas in 1167. They called these areas bishoprics, and each one had a leader called a bishop. Even though these areas were separate, there was no one main leader for all of them.

Main article: Cathars

Churches that have bishops, but not dioceses

See also: Methodist Circuit and Episcopal area (United Methodist Church)

Some churches have bishops but organize their areas differently than using dioceses. In churches like the Free Methodist Church, Global Methodist Church, Evangelical Wesleyan Church, African Methodist Episcopal Church, and United Methodist Church, a bishop oversees a region called an episcopal area. This area includes one or more groups known as annual conferences, which organize the churches and clergy under the bishop's care.

In the British Methodist Church and Irish Methodist Church, a similar idea is called a 'circuit'. Each local church is part of a circuit, led by a superintendent minister who guides all the churches in that circuit. Circuits are then grouped into larger areas called districts. These districts help support the circuits but do not have the same duties as dioceses. The overall leadership of the Methodist Church is handled by a president of the conference, elected for one year, along with a vice-president.

Churches that have neither bishops nor dioceses

Many churches around the world do not have bishops or dioceses. Most of these churches started after the Protestant Reformation, especially the Swiss Reformation led by John Calvin. These are called Reformed Churches, which include Continental Reformed, Presbyterian, and Congregationalist traditions.

Some churches, like Continental Reformed churches, are led by groups of elders or special officers. This is often called Synodal government or presbyterian polity. Presbyterian churches get their name from having groups of elders making decisions together. The Church of Scotland is run this way and does not use bishops or dioceses.

Congregational churches let each church decide its own rules and leaders. Some Methodist groups also work this way, with each church making its own choices. Most Baptists believe no outside group should control their church and usually have only two leaders: a pastor and deacons. There are a few exceptions, like the Episcopal Baptists who have leaders called bishops.

Churches of Christ are not part of larger groups and each church makes its own decisions.