The LAFFERTY surname in the USA

Frequency Comparisons
	Total	Rank	Frequency %	Per million people
United States
United States (Current snapshot)	10,014	3283	0.004	37
United States (1880 census)	2,732	2221	0.005	55
Change since 1880	+7282	-1062	-0.001	-18
Other Countries
Australia	257	5997	0.002	16
United Kingdom	2,382	2548	0.005	52

Top States for LAFFERTY by Total
State	Total	Rank in State	Frequency %	Per million people
Pennsylvania	1,118	1288	0.009	91
Ohio	609	2320	0.005	54
California	597	4893	0.002	18
New Jersey	551	1683	0.007	65
Florida	534	3885	0.003	33
Top States for LAFFERTY by Frequency
State	Total	Rank in State	Frequency %	Per million people
Delaware	168	804	0.021	214
West Virginia	368	760	0.020	204
North Dakota	75	1181	0.012	117
Pennsylvania	1,118	1288	0.009	91
Kentucky	346	1668	0.009	86

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

Classification and Origin of LAFFERTY

Region of origin: British Isles

Country of origin: Ireland

Language of origin: Gaelic

Ethnic origin: Celtic

Religious origin: Christian

Name derivation: From given name or forename

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

Classification	Total	Percent
Native American/Alaskan	203	2.03
Mixed Race	151	1.51
White (Hispanic)	133	1.33
Asian/Pacific	34	0.34
Black/African American	21	0.21
White (Caucasian)	9,472	94.59

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

Similar names to LAFFERTY

The following names have similar spellings or pronunciations as LAFFERTY.

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.