| Ullensaker | |
| Official Name: | Ullesaker |
| Idnumber: | 3209 |
| County: | Akershus |
| District: | Romerike |
| Capital: | Jessheim |
| Language: | Bokmål |
| Coatofarms: | Ullensaker komm.svg |
| Demonym: | Ullsokning |
| Munwebpage: | www.ullensaker.kommune.no |
| Mayor: | Ståle Lien Hansen |
| Mayor Party: | FrP |
| Mayor As Of: | 2023 |
| Area Rank: | 301 |
| Area Total Km2: | 252 |
| Area Land Km2: | 250 |
| Area Water Percent: | 0.08 |
| Population As Of: | 2023 |
| Population Rank: | 25 |
| Population Total: | 43814 [1] |
| Populationpercent: | 0.52 |
| Population Density Km2: | 173 |
| Population Increase: | 34.5 |
| Coordinates: | 60.1708°N 11.1881°W |
| Utm Zone: | 32V |
| Utm Northing: | 6672471 |
| Utm Easting: | 0621411 |
| Geo Cat: | adm2nd |
| Income Per Capita: | 1NOK |
| Income Year: | 2022 |
Ullensaker is a municipality in Akershus county, Norway. It is part of the traditional region of Romerike. The administrative centre of the municipality is the city of Jessheim. It has a population of 40,459 inhabitants. Norway's largest international airport Oslo Airport, Gardermoen, is located in Ullensaker.
The municipality (originally the parish) is named after the old Ullensaker farm. The name is first recorded in 1300 as Ullinshof. The first element is the genitive case of the name Ullinn (a sideform of Ullr). The last element was originally hof which means "temple", but this was later (around 1500 AD) changed to aker meaning "acre" or "field".
Ullensaker does not have an heraldic coat-of-arms properly granted. The municipality uses a non-heraldic badge that is from modern times. The logo was adopted on 8 November 1979, and it shows the god Ullr of Norse mythology holding a bow and three arrows. The colors on the logo can vary.[2]
Ullensaker borders with Eidsvoll to the north, Nes to the east, Sørum to the south, and Gjerdrum and Nannestad to the west.The international airport that serves as the main airport of Norway, Oslo Airport, Gardermoen, is located in Ullensaker. The municipality has two major population centres: the village of Kløfta and the city of Jessheim, the latter one houses the administration center of Ullensaker. There is also a Royal Norwegian Army base at Sessvollmoen as well as a Royal Norwegian Air Force air station, Gardermoen Air Station.
Ullensaker has had a huge population increase over the past fifty years. This increase has been slightly accelerating over the past few years. From 2000 to 2007, the population of Ullensaker increased by almost 6,000 people. The recent increase is partly attributed to the founding of Oslo Airport, Gardermoen.[3]
Raknehaugen, the largest burial mound in the Nordic countries, has been carbon dated to around 550; the age of the mound is disputed.[4]
In 2021, 1,390 inhabitants had Polish parents and/or were Polish (themselves); 1,048 had Pakistani parents and/or were Pakistani.[5]
| -- | + Number of minorities (1st and 2nd generation) in Ullensaker by country of origin in 2021--> | |
|---|---|---|
| Ancestry | Number | |
 Poland | 1390 | |
 Pakistan | 1048 | |
 Lithuania | 771 | |
 Afghanistan | 641 | |
 Iraq | 688 | |
 Sweden | 578[6] | |
 Sri Lanka | 452 | |
| 378 | ||
| 327 | ||
 Philippines | 315 | |
| 266 | ||
 Thailand | 243 |
The following cities are twinned with Ullensaker:
- Borgarbyggð, Western Region, Iceland[8] - Falkenberg, Halland County, Sweden[9]
- Leirvík, Eysturoy, Faroe Islands[10]