Mount Hallen, Queensland
| Mount Hallen Queensland | |||||||||||||||
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| Coordinates | 27°19′55″S 152°23′04″E / 27.3319°S 152.3844°E | ||||||||||||||
| Population | 457 (2021 census) | ||||||||||||||
| • Density | 8.705/km2 (22.55/sq mi) | ||||||||||||||
| Postcode(s) | 4312 | ||||||||||||||
| Elevation | 80–390 m (262–1,280 ft) | ||||||||||||||
| Area | 52.5 km2 (20.3 sq mi) | ||||||||||||||
| Time zone | AEST (UTC+10:00) | ||||||||||||||
| Location |
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| LGA(s) | Somerset Region | ||||||||||||||
| State electorate(s) | Nanango | ||||||||||||||
| Federal division(s) | Blair | ||||||||||||||
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Mount Hallen is a rural locality in the Somerset Region, Queensland, Australia. In the 2021 census, Mount Hallen had a population of 457 people.