The municipality is one of Sweden's largest, geographically, at around 8,000 km², or roughly the size of the historical province of Södermanland, which - compared to Pajala Municipality's population of approximately 6,500 - has more than one million inhabitants.
In Pajala is also Jupukkamasten, a 335 metre tall guyed mast for FM- and TV-transmission, which together with three other guyed masts of the same height is the tallest structure in Sweden.