Turkey has 81 cities (plural - iller, singular - il); 

Adana, Adiyaman, Afyonkarahisar, Agri, Aksaray, Amasya, Ankara, Antalya, Ardahan, Artvin, Aydin, Balikesir, Bartin, Batman, Bayburt, Bilecik, Bingol, Bitlis, Bolu, Burdur, Bursa, Canakkale, Cankiri, Corum, Denizli, Diyarbakir, Duzce, Edirne, Elazig, Erzincan, Erzurum, Eskisehir, Gaziantep, Giresun, Gumushane, Hakkari, Hatay, Icel (Mersin), Igdir, Isparta, Istanbul, Izmir, Kahramanmaras, Karabuk, Karaman, Kars, Kastamonu, Kayseri, Kilis, Kirikkale, Kirklareli, Kirsehir, Kocaeli, Konya, Kutahya, Malatya, Manisa, Mardin, Mugla, Mus, Nevsehir, Nigde, Ordu, Osmaniye, Rize, Sakarya, Samsun, Sanliurfa, Siirt, Sinop, Sirnak, Sivas, Tekirdag, Tokat, Trabzon, Tunceli, Usak, Van, Yalova, Yozgat, Zonguldak

A typical car plate is :

First two numbers on car plates show the city code :

01 Adana	02 Adıyaman	03 Afyon	04 Ağrı	05 Amasya
06 Ankara	07 Antalya	08 Artvin	09 Aydın	10 Balıkesir
11 Bilecik	12 Bingöl	13 Bitlis	14 Bolu	15 Burdur
16 Bursa	17 Çanakkale	18 Çankırı	19 Çorum	20 Denizli
21 Diyarbakır	22 Edirne	23 Elazığ	24 Erzincan	25 Erzurum
26 Eskişehir	27 Gaziantep	28 Giresun	29 Gümüşhane	30 Hakkari
31 Hatay	32 Isparta	33 İçel	34 İstanbul	35 İzmir
36 Kars	37 Kastamonu	38 Kayseri	39 Kırklareli	40 Kırşehir
41 Kocaeli	42 Konya	43 Kütahya	44 Malatya	45 Manisa
46 K.Maraş	47 Mardin	48 Muğla	49 Muş	50 Nevşehir
51 Niğde	52 Ordu	53 Rize	54 Sakarya	55 Samsun
56 Siirt	57 Sinop	58 Sivas	59 Tekirdağ	60 Tokat
61 Trabzon	62 Tunceli	63 Şanlıurfa	64 Uşak	65 Van
66 Yozgat	67 Zonguldak	68 Aksaray	69 Bayburt	70 Karaman
71 Kırıkkale	72 Batman	73 Şırnak	74 Bartın	75 Ardahan
76 Iğdır	77 Yalova	78 Karabük	79 Kilis	80 Osmaniye
81 Düzce