Today, 84.7% of the population are members of The Evangelical Lutheran Church in Denmark (ELCD). There are more than 15 Christian denominations in Denmark, but the churches outside the ELCD only claim around 1% of the population. The Roman Catholic Church is the second largest church in Denmark with about 35,000 members. Immigration is introducing more Christian denominations and also Islam, which since the 1980s has become the second largest religion in the country with about 200,000 members.

Ecumenical ambiguity
The significant role of ELCD and the dominance of Lutheran Christianity in the country since 1536 have resulted in some ambiguity regarding ecumenical involvement. The ELCD has always participated in ecumenical work, and has been a founding member of international church organisations. It has also taken an active part in commissions and conferences, but has not always found it possible to sign ecumenical documents such as the Porvoo declaration and the Joint Declaration on Justification. In 2001, however, the ELCD signed the Leuenberg agreement and became a full member of the Leuenberg Church Fellowship.

The Council on International Relations
In 1989, the Council on International Relations of the ELCD was established by law. It is responsible for relations between the ELCD and other churches and church organisations, both nationally and internationally. The members of the Council are elected every four years and represent the ten dioceses in Denmark; the minister of church affairs appoints two bishops, and the Faroe Islands and Greenland, independent dioceses with their own legislation, each nominate an observer.

In recent years, many contacts have been made between Danish parishes and congregations in other countries, especially in Eastern Europe. These relationships have had a positive effect on local interchurch work in Denmark.

ELCD membership of organisations
The ELCD is a member of the Lutheran World Federation, the World Council of Churches, the Conference of European Churches, and Community of Protestant Churches in Europe - Leuenberg Church Fellowship. At the national level, it is a member of the Council of Danish Churches.

Other Danish organisations and specialised ministries
A number of religious organisations, such as the missionary societies, do ecumenical and interchurch work. DanChurchAid, an ecumenical organisation related to the ELCD, is involved in relief and development work all over the world, in close cooperation with local churches as well as with the LWF, the WCC and Action of Churches Together.