Migration – New York – City-Data.com

By 1850, New York City had 133,730 Irish-born inhabitants, and by 1890, 409,224. Although smaller in number, German immigration during this period was more widespread; during the 1850s, German-speaking people were the largest foreign-born group in Rochester and Buffalo, and by 1855 about 30,000 of Buffalo’s 74,000 residents were German.

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