In 2006, the town of Wormer had 12,566 inhabitants. The built-up area of the town is 16.88 km² (of which water: 4.19 km²).
Wormer, together with Engewormer (Wormer c.a.), was a separate municipality until 1991, when it became a part of the new municipality of Wormerland.
The inhabitants of Wormer repulsed several attacks of the Frisians and West Frisians in 1280. Floris V, Count of Holland rewarded this with an exemption from paying toll in Holland, an important privilege at that time. Important skirmishes between Spanish troops and the Geuzen took place in Wormer during the Eighty Years' War. At Whitsunday (Pentecost) 30 May 1574, 1400 Spanish soldiers tried to capture Wormer and Jisp. They were crushingly defeated by a combined force of locals, Geuzen and filibusters, bringing an end to the Spanish tyranny in the Waterland area. In the following century Wormer became very prosperous from the production of beschuit (rusk). At least 130 bakeries in the town were once supplying the countless ships of the Dutch East India Company. Other important industrial activities in the town during this period were the production of starch and the processing of whale blubber. At least 66 windmills were once built in Wormer, but nowadays only one windmill (de Koker) has been preserved.
Famous (former) residents of Wormer
- Geertruid Adriaansdochter, Catholic martyr
- Kris Anderson 1986 Son of PJ World Champion Wormer
- Thijs Al mountainbiker/cyclo-cross racer.
- George Baker (Hans Bouwens, 1944) singer and songwriter of the George Baker Selection.
- Martinus Duncanus (Maarten Donc, 1505-1590), writer and lecturer.
- Rop Gonggrijp (1968), Hacker, Internet pioneer
- Tim Klijn (1979), Dutch diskjockey at Radio 538
- Robin Koenders canoer
- Pieter Jan Leeuwerink (1962), Dutch international volleyball player († 2004)
- G.W. Sok vocalist of anarcho-punk band The Ex
- Henk Sprenger (1919), Dutch cartoonist († 2005)
- Jan Jansz Struys adventurer/explorer 1631 - 1694
- Terrie guitarist of anarcho-punk band The Ex
- Thorwald Veneberg professional road bicycle racer.
- Piet de Wit (1946) track bicycle racer, worldchampion stayering in 1966 and 1967.
- Ferry Heijne vocalist of band De Kift
- Funda Müjde actress and theater maker
- Merel Westrik Dutch newsreporter, journalist and TV-host
- Website of the municipality of Wormerland
- Website de Wormerlander
- Windmill de Koker
- J. Kuyper, Gemeente Atlas van Nederland, 1865-1870, "Wormer". Map of the former municipality, around 1868.
- Shopping centre Wormer