| Value | Category |
|---|---|
| 00 | In the census enumeration locality |
| 01 | Alba |
| 02 | Arad |
| 03 | Arges |
| 04 | Bacau |
| 05 | Bihor |
| 06 | Bistrita-nasaud |
| 07 | Botosani |
| 08 | Brasov |
| 09 | Braila |
| 10 | Buzau |
| 11 | Caras-severin |
| 12 | Calarasi |
| 13 | Cluj |
| 14 | Constanta |
| 15 | Covasna |
| 16 | Dambovita |
| 17 | Dolj |
| 18 | Galati |
| 19 | Giurgiu |
| 20 | Gorj |
| 21 | Harghita |
| 22 | Hunedoara |
| 23 | Ialomita |
| 24 | Iasi |
| 25 | Maramures |
| 26 | Mehedinti |
| 27 | Mures |
| 28 | Neamt |
| 29 | Olt |
| 30 | Prahova |
| 31 | Satu mare |
| 32 | Salaj |
| 33 | Sibiu |
| 34 | Suceava |
| 35 | Teleorman |
| 36 | Timis |
| 37 | Tulcea |
| 38 | Vaslui |
| 39 | Valcea |
| 40 | Vrancea |
| 41 | Bucharest municipality |
| 51 | Albania |
| 52 | Austria |
| 53 | Belgium |
| 54 | Bulgaria |
| 55 | Czechoslovakia |
| 56 | Denmark |
| 57 | Switzerland |
| 58 | Finland |
| 59 | France |
| 60 | Germany |
| 61 | Greece |
| 62 | Italy |
| 63 | Yugoslavia |
| 64 | Norway |
| 65 | Netherlands |
| 66 | Poland |
| 67 | Portugal |
| 68 | United Kingdom |
| 69 | Spain |
| 70 | Sweden |
| 71 | Hungary |
| 72 | Moldavian republic |
| 73 | Ukraine republic |
| 74 | Other USSR republics |
| 75 | Other European countries |
| 76 | Countries from other continents |
| 99 | Undeclared |