The CASSIDY surname in the USA

Frequency Comparisons
	Total	Rank	Frequency %	Per million people
United States
United States (Current snapshot)	26,011	1240	0.01	96
United States (1880 census)	6,772	890	0.014	135
Change since 1880	+19239	-350	-0.004	-39
Other Countries
Australia	2,554	622	0.016	156
United Kingdom	10,486	568	0.023	228

Top States for CASSIDY by Total
State	Total	Rank in State	Frequency %	Per million people
New York	2,264	738	0.012	119
California	1,992	1613	0.006	59
Florida	1,957	1015	0.012	122
Pennsylvania	1,925	641	0.016	157
New Jersey	1,606	457	0.019	191
Top States for CASSIDY by Frequency
State	Total	Rank in State	Frequency %	Per million people
Vermont	207	416	0.034	340
Maine	362	688	0.028	284
New Hampshire	350	498	0.028	283
Massachusetts	1,545	514	0.024	243
Delaware	173	752	0.022	221

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

Classification and Origin of CASSIDY

Region of origin: British Isles

Country of origin: Ireland

Language of origin: Gaelic

Ethnic origin: Celtic

Religious origin: Christian

Data for religion and/or language relates to the culture in which the CASSIDY 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 CASSIDY 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 CASSIDY in the USA

Classification	Total	Percent
Black/African American	544	2.09
White (Hispanic)	489	1.88
Mixed Race	341	1.31
Asian/Pacific	130	0.5
Native American/Alaskan	94	0.36
White (Caucasian)	24,414	93.86

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

Similar names to CASSIDY

The following names have similar spellings or pronunciations as CASSIDY.

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.