| Code | Name | Region |
|---|---|---|
| CNSQS | Shangqiu | HA |
| CNSRS | Shangrao | JX |
| CNSGI | Shangsi | 45 |
| CNSGU | Shangyu | ZJ |
| CNSXJ | Shanshan | XJ |
| CNSNI | Shanshi | HL |
| CNSSI | Shanshui | SX |
| CNSTG | Shantou | GD |
| CNSAW | Shanwai | ZJ |
| CNSWE | Shanwei | GD |
| CNHSC | Shaoguan New Pt | GD |
| CNSOS | Shaoshan | HN |
| CNSWU | Shaowu | 35 |
| CNSXG | Shaoxing | ZJ |
| CNSRG | Sanrong | GD |
| CNSNS | Sansha | FJ |
| CNNHS | Sanshan Pt | GD |
| CNSNU | Sanshu | JS |
| CNSJQ | Sanshui | GD |
| CNSYX | Sanya | HI |
| CNSYA | Sanya Pt | HI |
| CNSNA | Sanyang | JS |
| CNSNL | Sanyuanli/guangzhou | GD |
| CNSZA | Sanzao | GD |
| CNSZO | Sanzhou | HB |
| CNKJC | Science City | 44 |
| CNNDS | Shacheng | FJ |
| CNSAT | Shadi | GD |
| CNSDU | Shadui | GD |
| CNSAE | Shahe | BJ |
| CNSEZ | Shahezi | HL |
| CNSHO | Shajiao | GD |
| CNSHJ | Shajing | GD |
| CNSAL | Shalingzhuang | SD |
| CNRUC | Ruicheng | 14 |
| CNRUJ | Ruijin | 36 |
| CNRUI | Ruili | YN |
| CNRJN | Runjiang | JS |
| CNWHR | Rushan | SD |
| CNRSN | Rushankou | SD |
| CNSIQ | Saiqi | FJ |
| CNSBM | Sanbaimen | |
| CNSAU | Sanbu | GS |
| CNSBU | Sanbu Pt | GD |
| CNSDP | Sandouping | HB |
| CNANH | Sanhe | GD |
| CNSAH | Sanhe | JL |
| CNSAA | Sanhua | HB |
| CNSIG | Sanjiang | JS |
| CNPTS | Sanjiangkou | FJ |