Here's the announcement from the CDMX Police Chief regarding their stance on the demonstration tomorrow, Sunday, 20 July. I'm unable to locate a written version or news article of their plan because they put it in a video only for now.

In a nutshell, the CDMX security will arrest anyone in possession of criminal tools, causing destruction etc. The demonstration is authorized, free speech is authorized, but destruction or physical assaults will not be tolerated. The US Embassy specifically instructed US Citizens to not participate in this demonstration or they will lose their visas, etc (as in all demonstrations worldwide). Mexicans on social media have been posting this on their social media websites. I've already posted it in on the "Embassy Alert" page for Mexico. So, avoid the area and don't give them a reason to interact.

When I find a written security plan I will post it in this thread.


BELOW: I've decided to post the US Embassy announcement below so there's no mistake about their message to anyone from the USA including their staff should avoid traveling to Tlalpan on 20 July.

July 18, 2025
Location: Tlalpan, between Fuentes Brotantes and El Caminero
Event: Anti-gentrification demonstrations are expected to take place on Sunday, July 20 starting at 3:00 p.m. A previous demonstration occurred in the Roma and Condesa neighborhoods on July 4, and some in that group vandalized property and threw rocks at people perceived to be foreigners. U.S. government personnel are advised to avoid the demonstration area. U.S. citizens should avoid participating in demonstrations that may be deemed political by authorities, as Mexican law prohibits political activities by foreign citizens, and participation may result in detention or deportation. Expect traffic congestion, enhanced police presence, and increased security measures in the area.

Actions to Take:

Demonstrations can be unpredictable; avoid areas around protests and demonstrations.
Monitor local media for updates.
Follow the directions of local authorities and in case of emergency, call 911.
U.S. Citizen Assistance: 

Contact Form
U.S. Embassy and Consulates in Mexico
From Mexico: (55) 8526 2561
From the United States:  +1-844-528-6611
Department of State – Consular Affairs:  +1-888-407-4747 or +1-202-501-4444
Links: 

Mexico International Travel information 
U.S. Citizens in Mexico WhatsApp Channel
U.S. Passports
Smart Traveler Enrollment Program (STEP) 
Department of State on Facebook  and X 
U.S. Embassy in Mexico on Facebook  and X 
Alerts