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Roby Last Name Popularity, Meaning and Origin

In this article we'll look at the origin and meaning of the surname Roby and how popular it is in the United States. We'll also look at the race and ethnic origin of people in the United States who are named Roby.

Roby, like all of the names we have data for, is identified by the U.S. Census Bureau as a surname which has more than 100 occurrences in the United States in the Decennial Census survey. The most recent statistics we have for the Roby surname is from the 2010 census data.

Where Does Roby Rank in the Most Common U.S. Names?

According to the data, Roby is ranked #3,798 in terms of the most common surnames in America.

The Roby surname appeared 9,315 times in the 2010 census and if you were to sample 100,000 people in the United States, approximately 3.16 would have the surname Roby.

We can also compare 2010 data for Roby to data from the previous census in 2000. The table below contains all of the statistics for both years in a side-by-side comparison.

2010 2000 Change (%)
Rank 3798 3630 4.52%
Count 9,315 8,986 3.60%
Proportion per 100k 3.16 3.33 -5.24%

Race and Ethnic Origin of People with the Last Name Roby

We also have some data on the ancestry of people with the surname Roby.

The below race categories are the modified race categories used in the Census Bureau's population estimates program. All people were categorized into six mutually exclusive racial and Hispanic origin groups: "White only", "Black only", "American Indian and Alaskan Native only", "Asian and Pacific Islander only", "Two or More Races", and "Hispanic".

For the most recent 2010 census data, the race/ethnic origin breakdown for Roby was:

  • 62.83%, or 5,853 total occurrences, were "Non-Hispanic White Only".
  • 30.93%, or 2,881 total occurrences, were "Non-Hispanic Black Only".
  • 1.32%, or 123 total occurrences, were "Non-Hispanic Asian and Pacific Islander Only".
  • 0.41%, or 38 total occurrences, were "Non-Hispanic American Indian and Alaskan Native".
  • 2.32%, or 216 total occurrences, were "Non-Hispanic of Two or More Races".
  • 2.19%, or 204 total occurrences, were "Hispanic Origin".

Note: Any fields showing (S) means the data was suppressed for privacy so that the data does not in any way identify any specific individuals.

Since we have data from the previous census in 2000, we can also compare the values to see how the popularity of Roby has changed in the 10 years between the two census surveys.

2010 2000 Change (%)
White 62.83% 66.50% -5.68%
Black 30.93% 29.76% 3.86%
Asian and Pacific Islander 1.32% 0.52% 86.96%
American Indian and Alaskan Native 0.41% 0.34% 18.67%
Two or More Races 2.32% 1.62% 35.53%
Hispanic 2.19% 1.25% 54.65%

Data Source(s)

All of the data on this page is sourced from the Decennial Census survey, from the United States Census Bureau.