DB - Wałbrzych (city county)
DBA - Wałbrzych County
DBL - Bolesławiec County
DDZ - Dzierżoniów County
DGL - Głogów County
DGR - Góra County
DJ - Jelenia Góra (city county)
DJA - Jawor County
DJE - Jelenia Góra County
DKA - Kamienna Góra County
DKL - Kłodzko County
DL - Legnica (city county)
DLB - Lubań County
DLE - Legnica County
DLU - Lubin County
DLW - Lwówek Śląski County
DMI - Milicz County
DOA - Oława County
DOL - Oleśnica County
DPL - Polkowice County
DSR - Środa Śląska County
DST - Strzelin County
DSW - Świdnica County
DTR - Trzebnica County
DW, DX - Wrocław (city county)
DWL - Wołów County
DWR - Wrocław County
DZA - Ząbkowice Śląskie County
DZG - Zgorzelec County
DZL - Złotoryja County
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CAL - Aleksandrów Kujawski County
CB - Bydgoszcz (city county)
CBR - Brodnica County
CBY - Bydgoszcz County
CCH - Chełmno County
CG - Grudziądz (city county)
CGD - Golub-Dobrzyń County
CGR - Grudziądz County
CIN - Inowrocław County
CLI - Lipno County
CMG - Mogilno County
CNA - Nakło County
CRA - Radziejów County
CRY - Rypin County
CSE - Sępólno County
CSW - Świecie County
CT - Toruń (city county)
CTR - Toruń County
CTU - Tuchola County
CW - Włocławek (city county)
CWA - Wąbrzeźno County
CWL - Włocławek County
CZN - Żnin County
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EBE - Bełchatów County
EBR - Brzeziny County
EKU - Kutno County
EL , ED - Łódź (city county)
ELA - Łask County
ELC - Łowicz County
ELE - Łęczyca County
ELW - Łódź East County
EOP - Opoczno County
EP - Piotrków Trybunalski (city county)
EPA - Pabianice County
EPD - Poddębice County
EPI - Piotrków Trybunalski County
EPJ - Pajęczno County
ERA - Radomsko County
ERW - Rawa Mazowiecka County
ES - Skierniewice (city county))
ESI - Sieradz County
ESK - Skierniewice County
ETM - Tomaszów Mazowiecki County
EWE - Wieruszów County
EWI - Wieluń County
EZD - Zduńska Wola County
EZG - Zgierz County
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LB - Biała Podlaska (city county)
LBI - Biała Podlaska County
LBL - Biłgoraj County
LC - Chełm (city county)
LCH - Chełm County
LHR - Hrubieszów County
LJA - Janów Lubelski County
LKR - Kraśnik County
LKS - Krasnystaw County
LLB - Lubartów County
LLE - Łęczna County
LLU - Łuków County
LOP - Opole Lubelskie County
LPA - Parczew County
LPU - Puławy County
LRA - Radzyń Podlaski County
LRY - Ryki County
LSW - Świdnik County
LTM - Tomaszów Lubelski County
LU - Lublin (city county)
LUB - Lublin County
LWL - Włodawa County
LZ - Zamość (city county)
LZA - Zamość County
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FG - Gorzów Wielkopolski (city county)
FGW - Gorzów Wielkopolski County
FKR - Krosno Odrzańskie County
FMI - Międzyrzecz County
FNW - Nowa Sól County
FSD - Strzelce-Drezdenko County
FSL - Słubice County
FSU - Sulęcin County
FSW - Świebodzin County
FWS - Wschowa County
FZ - Zielona Góra (city county)
FZA - Żary County
FZG - Żagań County
FZI - Zielona Góra County
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KBC - Bochnia County
KBR - Brzesko County
KCH - Chrzanów County
KDA - Dąbrowa Tarnowska County
KGR - Gorlice County
KLI - Limanowa County
KMI - Miechów County
KMY - Myślenice County
KN - Nowy Sącz (city county)
KNS - Nowy Sącz County
KNT - Nowy Targ County
KOL - Olkusz County
KOS - Oświęcim County
KPR - Proszowice County
KR, KK - Kraków (city county)
KRA - Kraków County
KSU - Sucha Beskidzka County
KT - Tarnów (city county)
KTA - Tarnów County
KTT - Tatra County
KWA - Wadowice County
KWI - Wieliczka County
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WA - Warsaw (Białołęka district)
WB - Warsaw (Bemowo district)
WBR - Białobrzegi County
WCI - Ciechanów County
WD - Warsaw (Bielany district)
WE - Warsaw (Mokotów district)
WF - Warsaw (Praga-Południe district)
WG - Garwolin County
WGM - Grodzisk Mazowiecki County
WGR - Grójec County
WGS - Gostynin County
WH - Warsaw (Praga-Północ district)
WI - Warsaw (Śródmieście district)
WJ - Warsaw (Targówek district)
WK - Warsaw (Ursus district)
WKZ - Kozienice County
WL - Legionowo County
WLI - Lipsko County
WLS - Łosice County
WM - Mińsk Mazowiecki County
WMA - Maków Mazowiecki County
WML - Mława County
WN - Warsaw (Ursynów district)
WND - Nowy Dwór Mazowiecki County
WO - Ostrołęka (city county)
WOR - Ostrów Mazowiecka County
WOS - Ostrołęka County
WOT - Otwock County
WP - Płock (city county)
WPI - Piaseczno County
WPL - Płock County
WPN - Płońsk County
WPR - Pruszków County
WPU - Pułtusk County
WPY - Przysucha County
WPZ - Przasnysz County
WR - Radom (city county)
WRA - Radom County
WS - Siedlce (city county)
WSC - Sochaczew County
WSE - Sierpc County
WSI - Siedlce County
WSK - Sokołów Podlaski County
WSZ - Szydłowiec County
WT - Warsaw (Wawer district)
WU - Warsaw (Ochota district)
WW ****(last K, L, M, N, V, R, S) - Warsaw (Włochy district)
WW ****(last F, G, H, J, W) - Warsaw (Wilanów district)
WW ****(last A, C, E, X, Y) - Warsaw (Rembertów district)
WWE - Węgrów County
WWL, WV - Wołomin County
WWY - Wyszków County
WX - Warsaw (Żoliborz district)
WX ***Y# - Warsaw (Wesoła district)
WY - Warsaw (Wola district)
WZ - Warsaw West County
WZU - Żuromin County
WZW - Zwoleń County
WZY - Żyrardów County
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OB - Brzeg County
OGL - Głubczyce County
OK - Kędzierzyn-Koźle County
OKL - Kluczbork County
OKR - Krapkowice County
ONA - Namysłów County
ONY - Nysa County
OOL - Olesno County
OP - Opole (city county)
OPO - Opole County
OPR - Prudnik County
OST - Strzelce Opolskie County
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TBU - Busko-Zdrój County
TJE - Jędrzejów County
TK - Kielce (city county)
TKA - Kazimierza Wielka County
TKI - Kielce County
TKN - Końskie County
TLW - Włoszczowa County
TOP - Opatów County
TOS - Ostrowiec Świętokrzyski County
TPI - Pińczów County
TSA - Sandomierz County
TSK - Skarżysko-Kamienna County
TST - Starachowice County
TSZ - Staszów County
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NBA - Bartoszyce County
NBR - Braniewo County
NDZ - Działdowo County
NE - Elbląg (city county)
NEB - Elbląg County
NEL - Ełk County
NGI - Giżycko County
NGO - Gołdap County
NIL - Iława County
NKE - Kętrzyn County
NLI - Lidzbark Warmiński County
NMR - Mrągowo County
NNI - Nidzica County
NNM - Nowe Miasto Lubawskie County
NO - Olsztyn (city county)
NOE - Olecko County
NOG - former Olecko-Gołdap County (Powiat olecko-gołdapski [pl]) divided into Olecko County (NOE) and Gołdap County (NGO) in 2002
NOL - Olsztyn County
NOS - Ostróda County
NPI - Pisz County
NSZ - Szczytno County
NWE - Węgorzewo County
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PCH - Chodzież County
PCT - Czarnków-Trzcianka County
PGN - Gniezno County
PGO - Grodzisk Wielkopolski County
PGS - Gostyń County
PJA - Jarocin County
PK - Kalisz (city county)
PKA - Kalisz County
PKE - Kępno County
PKL - Koło County
PKN - Konin County
PKO, PN - Konin (city county)
PKR - Krotoszyn County
PKS - Kościan County
PL - Leszno (city county)
PLE - Leszno County
PMI - Międzychód County
PNT - Nowy Tomyśl County
PO, PY - Poznań (city county)
POB - Oborniki County
POS - Ostrów Wielkopolski County
POT - Ostrzeszów County
POZ, PZ - Poznań County
PP - Piła County
PPL - Pleszew County
PRA - Rawicz County
PSE - Śrem County
PSL - Słupca County
PSR - Środa Wielkopolska County
PSZ - Szamotuły County
PTU - Turek County
PWA - Wągrowiec County
PWL - Wolsztyn County
PWR - Września County
PZ - Poznań County
PZL - Złotów County
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ZBI - Białogard County
ZCH - Choszczno County
ZDR - Drawsko Pomorskie County
ZGL - Goleniów County
ZGR - Gryfino County
ZGY - Gryfice County
ZK - Koszalin (city county)
ZKA - Kamień Pomorski County
ZKL - Kołobrzeg County
ZKO - Koszalin County
ZLO - Łobez County
ZMY - Myślibórz County
ZPL - Police County
ZPY - Pyrzyce County
ZS - Szczecin (city county)
ZSD - Świdwin County
ZSL - Sławno County
ZST - Stargard Szczeciński County
ZSW - Świnoujście (city county)
ZSZ - Szczecinek County
ZWA - Wałcz County
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