| Cover | Aug. 31, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Aug. 31, 2024 |
| Entity File Number | 811-02409 |
| Entity Registrant Name | The Mexico Fund, Inc. |
| Entity Central Index Key | 0000065433 |
| Entity Tax Identification Number | 13-3069854 |
| Entity Incorporation, State or Country Code | MD |
| Entity Address, Address Line One | 6700 Alexander Bell Drive |
| Entity Address, Address Line Two | Suite 200 |
| Entity Address, City or Town | Columbia |
| Entity Address, State or Province | MD |
| Entity Address, Postal Zip Code | 21046 |
| City Area Code | (614) |
| Local Phone Number | 469-3265 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | MXF |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Entity Information, Former Legal or Registered Name | (none) |
