The Inegi revealed that 42.2% of people in prison in Mexico have no sentence. Of the 231,436 inmates registered at the end of 2025, only 133,714 had a conviction.
Women are the most affected: 52.6% of them are without a sentence, compared to 41.5% of men. Of the total of 97,722 unsentenced inmates, 97,090 are adults. Of that group, 50.1% are in informal preventive detention, 34.3% in justified preventive detention and 1.8% in another case. 13.8% do not have an identified legal status.
The State of Mexico and Michoacán stand out: both report that 100% of their unsentenced population is in informal preventive detention.
In federal penitentiary centers, 5,702 crimes linked to unsentenced people were recorded. 5.5% corresponded to women and 94.5% to men. The most common crime among them was kidnapping (51.9%); among them, crimes with weapons (23.6%).
In state centers, 120 thousand 32 crimes were reported. 7.8% were committed by women—mainly drug dealing—and 92.2% by men, with robbery being the most frequent.




