Upper and Lower Northampton is an unincorporated place in New Brunswick, Canada.
It is recognized as a designated place by Statistics Canada.
In the 2021 Census of Population conducted by Statistics Canada, Upper and Lower Northampton had a population of 348 living in 133 of its 142 total private dwellings, a change of 11.9% from its 2016 population of 311.
With a land area of 64.28 km2 (24.82 sq mi), it had a population density of 5.4/km2 (14.0/sq mi) in 2021.
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