
the American colonies by the desperate economic condi-
tion of their homeland.
During the 18th century, Ireland grew more rapidly
than any European country, with the population of the
island increasing from 3 million in the 1720s to more than
8 million by the early 1840s. The exploding Irish popula-
tion—which grew by 1.4 million between 1821 and 1841
alone—coincided with the fall of agricultural prices and the
decline of the textile industry at the end of the Napoleonic
Wars (1815), throwing hundreds of thousands out of work,
with little prospect for economic improvement. The situa-
tion was made worse by the Irish land system, dominated by
Protestant landlords, with most of the cottiers (tenant farm-
ers with very small holdings) and laborers being Irish. Those
most hurt economically were the larger tenant farmers, both
Protestant and Catholic, who were often unable to pay rents
and evicted from their lands, then entered an already
depressed workforce. Rather than replace evicted farmers,
landlords—often absentee in England—shifted to sheep and
cattle raising as a more economically viable activity for the
poor land. Also, with no system of primogeniture guaran-
teeing the eldest son the whole land inheritance, Irish farms
were quickly divided among large families, with plots soon
becoming too small to support a family. A series of potato
famines further heightened the distress, adding starvation to
destitution as compelling factors toward immigration.
During the 18th and early 19th centuries, the poorest
laborers and cottiers tended to stay in Ireland or to immi-
grate to Britain, where industrialization was rapidly opening
job opportunities. Protestants, generally better off finan-
cially than their Catholic neighbors, found it easier to immi-
grate to the New World, especially to the colonies of what
would later become the United States. They had the added
incentive of escaping rural violence then common, as
Catholic secret societies attempted to undermine the Protes-
tant Ascendancy.
Most Irish immigrants arrived in ports along the eastern
seaboard of North America, including Halifax, Nova Sco-
tia; Montreal, Quebec; Boston; Philadelphia; and New York.
Most landed first at Canadian ports, as transportation rates
there were considerably cheaper. Many then migrated south-
ward, often after a number of years. Most immigrants stayed
in the cities, but a significant number ventured into the
Appalachian backcountry of Pennsylvania, South Carolina,
and Georgia. By 1800, the Irish population of Philadelphia
was 6,000, the largest in America. Most were Presbyterians,
but there were Quakers and Episcopalians as well and an
increasing number of Catholics by the turn of the century.
The Irish were the largest non-English immigrant group in
the colonial era, numbering perhaps 400,000 by 1790 (see
B
RITISH IMMIGRATION
). Between 1820 and 1840, the char-
acter of Irish immigration began to change, with a greater
percentage of poor Irish Catholics among them. During this
period, more than one-third of all immigrants to the United
States were Irish, most by way of Canada. By the 1840s,
however, they usually came directly to Boston or New York
City.
Although fewer Irish stayed in Canada, between 1770
and 1830, they transformed the character of the maritime
colonies. N
EWFOUNDLAND
, once thought of only as a
“colony built around a fishery,” was the first area of sub-
stantial Irish settlement. By the late 18th century, more and
more sojourning fishermen were choosing to settle perma-
nently on the island, despite a formal British ban. By the
1830s, when declining trade virtually ended Irish immigra-
tion, half of Newfoundland’s population was Irish (38,000).
As Newfoundland’s transatlantic economy suffered after
1815, more Irish Catholics chose to settle in N
OVA
S
COTIA
or N
EW
B
RUNSWICK
. Though Irish Catholics remained a
small minority on Cape Breton Island, by 1837 they consti-
tuted more than one-third of the population of Halifax,
and almost a third of the population of the entire colony.
Between 1827 and 1835, it is estimated that 65,000 Irish
immigrated to New Brunswick, attracted both by the fish-
eries and the rich farmland. Most were from the Irish
provinces of Munster and Ulster, and perhaps 60 percent
were Catholic. The Irish formed the largest immigrant
group in Canada during the first half of the 19th century,
more than the English, Scottish, and Welsh combined.
The Great Famine of 1845–49 dramatically accelerated
an already-growing trend. The Irish peasantry had since the
18th century relied largely on the potato for their basic food
supply. In the 1840s, an average male might eat 14 pounds
of potatoes each day. Pigs, the primary source of meat in
the Irish diet, were also fed potatoes. When potato blight
destroyed a large percentage of the potato crops in 1845,
1846, and 1848, the laboring population had few choices. A
million or more may have died as a result of the famine;
another million chose to emigrate. In the 1820s, 54,000
Irish immigrants came to America; in the 1840s, 781,000.
The immigrant wave peaked in the 1850s when 914,000
Irish immigrants arrived, most coming through New York
Harbor. With friends or family already in the United States
and British North America, the decision to emigrate became
easier. Between 1845 and 1860, about 1.7 million Irish set-
tled in the United States, and another 360,000, in Canada.
Although the rate of immigration declined as the century
progressed, the aggregate numbers remained large. Between
1860 and 1910, another 2.3 million Irish immigrated to
the United States, and about 150,000, to Canada.
Whereas 18th-century Scots-Irish had often headed for
the frontier, Irish immigrants after the Great Famine almost
always settled in eastern cities. Many stayed in Boston and
New York to work in industry or fill newly emerging public-
sector jobs as police officers or firemen. Others moved on
to jobs in canal and railway construction, filtering westward
along with the progress of the country. Irish people were
widely discriminated against in the 19th century but created
154154 IRISH IMMIGRATION