What does each digit of the ID number mean?

1, before 1 and 2 digits indicate: the code of this province;

2. The third and fourth digits indicate the code of the city;

3. The 5th and 6th digits indicate: district code;

4. The number 7~ 14 indicates the date of birth (7.8.9. 10 is the year,1.12 is the month,13.10.

5. Numbers 15 and 16 indicate the codes of local police stations;

6. The number 17 indicates gender: odd numbers indicate men and even numbers indicate women;

7. Bit 18 is the check code: the check code can be a number from 0 to 9, and is sometimes represented by X. ..

Introduction:

People's Republic of China (PRC) identity card is a proof of people's citizenship in People's Republic of China (PRC). 1984 was preceded by "ID card".

Validity period:

1,/kloc-If a citizen under the age of 0/6 voluntarily applies for an ID card, the ID card is valid for 5 years;

2./kloc-for citizens aged from 0/6 to 25, the validity period of the ID card is 10 year;

3. For citizens aged from 26 to 45, the ID card is valid for 20 years;

4, citizens over the age of 46, the identity card is valid for a long time.