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The Alle-Kiski Valley’s population has declined since the 2010 census, but four of its communities are growing, according to census estimates.
The Valley’s 42 municipalities had a combined population of 190,950 in 2019, down about 3% from the 2010 census, the numbers show.
Bucking that trend were Oakmont, which saw its population grow nearly 4% to 6,541; Harmar, up 2.6% to 2,997; West Deer, up 1.8% to 11,986; and Buffalo Township, up 1.2% to 7,399.
“I don’t think it’s any one thing that we can attribute the growth to,” said Oakmont Council President Patricia Friday.