View the most partisan surnames in The United States

Where Does The Last Name Sienkowski Come From? ^{nationality or country of origin}

The surname Sienkowski occurs more in Poland more than any other country/territory. It can also be found in the variant forms: Sieńkowski. For other possible spellings of Sienkowski click here.

How Common Is The Last Name Sienkowski? ^{popularity and diffusion}

This surname is the 490,615^th most numerous family name in the world It is held by around 1 in 10,796,364 people. The last name Sienkowski is predominantly found in Europe, where 61 percent of Sienkowski are found; 58 percent are found in Eastern Europe and 58 percent are found in West Slavic Europe.

Sienkowski is most commonly used in Poland, where it is carried by 393 people, or 1 in 96,714. Outside of Poland this last name exists in 8 countries. It is also common in The United States, where 37 percent are found and Belgium, where 2 percent are found.

Sienkowski Last Name Statistics ^demography

In The United States those bearing the Sienkowski last name are 23.07% more likely to be registered with the Republican Party than the national average, with 69.84% registered with the political party.

Sienkowski earn somewhat more than the average income. In United States they earn 14.94% more than the national average, earning $49,594 USD per year.