List of people up for canonization in the US or who have been canonized. Also, keep in mind, that there are more people in Italy who are Catholic rather than in the States. If you notice here
newsaints.faithweb.com/index.htm there are more people who are up for canonization that are from Italy, Spain, or South America. I think it has to do more so with more people being Catholic in those countries and thus being open to God using them and transforming them into saints, unlike in America.
Saint John Nepomucene Neumann was born in Bohemia (the Czech Republic) on March 28, 1811 and became the first (naturalized) American male saint. He was canonized on June 19, 1977 by Pope Paul VI. He died on Jan 5, 1860. His feast day is Jan. 5.
Saint Isaac Jogues is considered a North American Martyr (I don’t know about citizen). He died in America. He was made a saint. We had lots of martyrs that were priests (men) so we obviously have a number of male “saints” although we may not have their exact names. They were not born here though.
Juan Bautista de Segura and 7 companions (1571)
Martyrs of Georgia (1597)
Kateri Tekakwitha (1680)
Junipero Serra (1784)
Felix de Andreis (1820)
Elizabeth Ann Seton (1821)
Magín Catalá (1830)
Simon-Guillaume-Gabriel Bruté de Rémur (1839)
Demetrius Gallitzin (1840)
Rose Philippine Duchesne (1852)
Pierre Toussaint (1853)
Theodore Guerin (1856)
John Henry Neumann (1860)
Henriette Delille (1862)
Samuel Mazzuchelli (1864)
Francis Xavier Seelos (1867)
Frederic Irenaeus Baraga (1868)
Cornelia Peacock Connelly (1879)
Mary Elizabeth Lange (1882)
Damien De Veuster (1889)
Michael James McGivney (1890)
Maria Adelaida O’Sullivan (1893)
Mary Magdalen Bentivoglio (1905)
Leo Heinrichs (1908)
Francesca Saverio Cabrini (1917)
Marianne Cope (1918)
Maria Theresa Dudzik (1918)
Thomas Price (1919)
Francis Joseph Parater (1920)
Stephen Eckert (1923)
Mary Alphonsa (Rose) Hawthorne (1926)
Miriam Teresa Demjanovich (1927)
Thomas Augustine Judge (1933)
James Walsh (1936)
Nelson Baker (1936)
Maria Kaupas (1940)
Mary Virginia Merrick (1955)
Katharine Mary Drexel (1955)
Solanus Casey (1957)
Vincent Robert Capodanno (1967)
Paul Murphy (1976)
Fulton Sheen (1979)
Dorothy Day (1980)
Terence John Cooke (1983)
Walter Ciszek (1984)
Angeline McCrory (1984)
Alphone Gallegos (1991)
Patrick Peyton (1992)
EDIT: There are more practicing Catholics in those countries as well. I was thinking since it now takes miracles to be a saint perhaps since there are more people practicing in those countries it is much more frequent for a miracle to happen to one of their saints because people in those countries are praying much more for it … (?) Such as in the US… not many people know about our Americans who are up for canonization. Perhaps they do not have such a devotion to them… ? Just an idea.