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	2
United Kingdom	75	25038	0	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

Notes

Total is the total number of people with that surname.
Rank is the position in the list of names ordered by total (eg, a rank of 1 means that it's the most common name, and a rank of 10 means it's the tenth most common, etc).
Frequency is the percentage of people with that surname.
Per million people is the number of people with that surname per million of the population.

'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.

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.