Established on 23 September 1964 as Diocese of Ipiales, on territory split off from the Diocese of Pasto
Statistics
As per 2015, it pastorally served 560,288 Catholics (90.2% of 620,969 total) on 11,089 km2 in 45 parishes and 2 missions with 95 priests (87 diocesan, 8 religious), 2 deacons, 86 lay religious (16 brothers, 70 sisters) and 37 seminarians.
Miguel Angel Arce Vivas (31 Oct 1964 – 7 April 1965), next Metropolitan Archbishop of Popayán (Colombia) (1965.04.07 – 1976.10.11), died 1987
Alfonso Arteaga Yepes (24 July 1965 – 25 Oct 1985), next Bishop of Espinal (Colombia) (1985 – death 1989.10.30); previously Titular Bishop of Auzegera (1962.09.12 – 1965.07.24) as Auxiliary Bishop of Popayán (1962.09.12 – 1965.07.24)
Ramón Mantilla Duarte, Redemptorists (C.Ss.R.) (25 Oct 1985 – retired 16 Jan 1987), died 2009; previously Titular Bishop of Sala Consilina (1971.01.16 – 1977.04.26) as Vicar Apostolic of Sibundoy (Colombia; see later Promoted as Diocese of Mocoa–Sibundoy) (1971.01.16 – 1977.04.26), Bishop of Garzón (Colombia) (1977.04.26 – 1985.10.25)