New league tables have been published that rank constituency on changes to real-terms school funding over a five-year period.
The figures published by the NEU teaching union show that 83 per cent of constituencies will receive less per-pupil funding in real terms in 2020 than they did in 2015.
The NEU said that only 17 constituencies would see school funding increases, and funding levels at one constituency would stay static.
This means just 18 out of 533 parliamentary constituencies do not face real-terms funding cuts compared with five years earlier, according to the NEU.
The union also says there is a political imbalance, as 13 of the 17 constituencies with increases are Conservative seats, while 77 of the 100 areas with the biggest falls in real-terms funding are in Labour areas.
According to the analysis, York Outer will have the biggest increase out of the 533 constituencies, with a £138 increase in per-pupil funding in real terms.