The CASPERSEN surname in the USA

Frequency Comparisons
	Total	Rank	Frequency %	Per million people
United States
United States (Current snapshot)	380	51458	0	1
United States (1880 census)	23	69856	0	0
Change since 1880	+357	+18398	+N/A	+N/A
Other Countries
Australia	2	265071	0	0
United Kingdom	0			0

Top States for CASPERSEN by Total
State	Total	Rank in State	Frequency %	Per million people
California	49	35150	0.000	1
Minnesota	27	22633	0.001	5
Wisconsin	26	25765	0.000	5
Florida	25	45817	0.000	2
Pennsylvania	20	52667	0.000	2
Top States for CASPERSEN by Frequency
State	Total	Rank in State	Frequency %	Per million people
Alaska	6	14284	0.001	10
Nebraska	15	13764	0.001	9
Minnesota	27	22633	0.001	5
Iowa	16	20096	0.001	5
Wisconsin	26	25765	0.000	5

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

Classification and Origin of CASPERSEN

Sorry, we don't have any origin and classification information for the CASPERSEN surname.

Ethnic distribution of CASPERSEN in the USA

Classification	Total	Percent
White (Caucasian)	365	96.05
Native American/Alaskan	5	1.32
Asian/Pacific	Less than 100	Insignificant
Black/African American	None reported	0
Mixed Race	Less than 100	Insignificant
White (Hispanic)	Less than 100	Insignificant

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

CASPERSEN is a genuine surname, but it's an uncommon one. Did you possibly mean one of these instead?

Similar names to CASPERSEN

The following names have similar spellings or pronunciations as CASPERSEN.

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.