The history of your name

The CASTOR surname in the USA

Frequency Comparisons
Total Rank Frequency % Per million people
United States
United States (Current snapshot) 5,331 5944 0.002 20
United States (1880 census) 1,244 4536 0.002 25
Change since 1880 +4087 -1408 0 -5
Other Countries
Australia 30 38438 0.000 2
United Kingdom 75 25038 0.000 2
Top States for CASTOR by Total
State Total Rank in State Frequency % Per million people
Texas 563 4201 0.003 27
Florida 483 4580 0.003 30
California 464 6512 0.001 14
Indiana 375 2238 0.006 62
Pennsylvania 346 4807 0.003 28
Top States for CASTOR by Frequency
State Total Rank in State Frequency % Per million people
New Hampshire 107 1983 0.009 87
Indiana 375 2238 0.006 62
Oklahoma 192 2699 0.006 56
Colorado 212 2855 0.005 49
Montana 37 3988 0.004 41


'A figure of zero indicates that we don't have data for this name (usually because it's quite uncommon and our stats don't go down that far). It doesn't mean that there's no-one with that name at all!

For less common surnames, the figures get progressively less reliable the fewer holders of that name there are. This data is aggregated from several public lists, and some stats are interpolated from known values. The margin of error is well over 100% at the rarest end of the table!

For less common surnames, the frequency and "per million" values may be 0 even though there are people with that name. That's because they represent less than one in a million of the population, which ends up as 0 after rounding.

It's possible for a surname to gain in rank and/or total while being less common per million people (or vice versa) as there are now more surnames in the USA as a result of immigration. In mathematical terms, the tail has got longer, with a far larger number of less common surnames.

Figures for top states show firstly the states where most people called CASTOR live. This obviously tends to be biased towards the most populous states. The second set of figures show where people called CASTOR represent the biggest proportion of the population. So, in this case, there are more people called CASTOR in Texas than any other state, but you are more likely to find a CASTOR by picking someone at random in New Hampshire than anywhere else.

Classification and Origin of CASTOR

Region of origin: British Isles

Country of origin: England

Language of origin: English

Ethnic origin: English

Religious origin: Christian

Data for religion and/or language relates to the culture in which the CASTOR surname originated. It does not necessarily have any correlation with the language spoken, or religion practised, by the majority of current American citizens with that name.

Data for ethnic origin relates to the region and country in which the CASTOR surname originated. It does not necessarily have any correlation with the ethnicity of the majority of current American citizens with that name.

Ethnic distribution of CASTOR in the USA

Classification Total Percent
White (Hispanic) 938 17.6
Black/African American 442 8.29
Asian/Pacific 183 3.43
Mixed Race 107 2.01
Native American/Alaskan 19 0.36
White (Caucasian) 3,642 68.32

Ethnic distribution data shows the number and percentage of people with the CASTOR surname who reported their ethnic background as being in these broad categories in the most recent national census.

Meaning of CASTOR in historical publications

Sorry, we don't have any information on the meaning of CASTOR.

Similar names to CASTOR

The following names have similar spellings or pronunciations as CASTOR.

This does not necessarily imply a direct relationship between the names, but may indicate names that could be mistaken for this one when written down or misheard.

Matches are generated automatically by a combination of Soundex, Metaphone and Levenshtein matching.

Potential typos for CASTOR

The following words are slight variants of CASTOR that are likely to be possible typos or misspellings in written material.