Explore the Family Name Arnoldi

The meaning of Arnoldi

1. Italian: patronymic or plural form of the personal name Arnoldo, of ancient Germanic origin (see Arnold). 2. German and Dutch: Latinized (humanistic) patronymic from the personal name Arnold, using the genitive of its Latinized form Arnoldus. Compare Arnoldy. Some characteristic forenames: Italian Antonio, Carlo, Donato, Gianfranco, Luigi.

Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.

How common is the last name Arnoldi in the United States?

Based on the Decennial U.S. Census, the surname Arnoldi has seen a slight decrease in popularity in the United States from 2000 to 2010. In 2000, Arnoldi was ranked as the 53,904th most popular surname, with 359 individuals carrying this surname, making up a proportion of 0.13 per 100,000 people. By 2010, its rank dropped to 55,841st and the count increased slightly to 367 individuals or a proportion of 0.12 per 100,000 individuals. This represents a change in rank of -3.59% and a rise in count by 2.23%.

20002010Change
Rank#53,904#55,841-3.59%
Count3593672.23%
Proportion per 100k0.130.12-7.69%

Race and Ethnicity of people with the last name Arnoldi

In terms of ethnicity associated with the surname Arnoldi, the majority identified as White according to the Decennial U.S. Census data. In 2000, 97.77% of those bearing the Arnoldi surname were identified as White. By 2010, this percentage decreased slightly to 94.55%. The decade also saw the emergence of other ethnic identities among the Arnoldi surname bearers. In 2010, 1.36% identified as having two or more races, 1.36% identified as Hispanic, and 1.63% identified as Black. There were no individuals who identified as Asian/Pacific Islander or American Indian and Alaskan Native in either year.

20002010Change
White97.77%94.55%-3.29%
Black0%1.63%0%
Two or More Races0%1.36%0%
Hispanic0%1.36%0%
Asian/Pacific Islander0%0%0%
American Indian and Alaskan Native0%0%0%