The legal situation of a person is defined on the basis of relevant civil status acts.

According to Polish law there are four categories of marital status: single

• persons who have never been legally married,
• married – persons who are legally married,
• divorced – persons whose marriage was dissoluted by a judicial decree,
• widowed – persons whose marriage ceased to exist due to the death of a spouse.

Persons against whom a court ruled separation from a legal point of view - continued to remain in a marriage.

• Act of 28 November 2014, the Vital Records Law
  Place of publication: (Dz. U. 2021 poz. 709, z późn. zm.)

• Population structure