The gap has grown by £600 since 2015.
Women expect to take home £14,450 per year, up £150 on last year and a record high.
However men expect to take home £850 more than last year, increasing their annual income to £19,850 - 27% more than women.
UK gender pension gap by region:
North East - £10,500
Scotland - £9,250
South East - £7,600
Yorkshire Humberside - £7,500
East of England - £6,550
North West - £5,500
South West - £3,400
East Midlands - £2,700
West Midlands - £1,500
London - £1,100
She told Premier: "As Christians we have to campaign for change, we have to get involved in organisations like the Fawcett Society, who're the ones constantly campaigning and protesting for change, because this is a justice issue and as Christians we should be committed to fighting injustice.
"We're aware that there's a 20% gap between men and women's pay generally, and obviously the logical conclusion is that that would lead to a pension wage gap.
"The fact that it's not surprising doesn't make it any less appalling or shocking from a point of view in the unfairness and injustice of it.
"The workplace isn't set up for flexible working, it isn't set up for part-time working, it isn't set up for people who produce children - which are inevitably going to be female - so I think the whole issue isn't only about paying women more, it's about an overview of the whole system."
Listen to Premier's Hannah Tooley speak to Natalie Collins here:
