Teotihuacan was home to a remarkably diverse population that peaked at around 150,000 people, making it one of the largest cities in the world during its height between 150 and 650 CE. The residents weren’t a single ethnic group. They were a mix of local central Mexican peoples, Zapotec migrants from Oaxaca, Gulf Coast traders, and others drawn from across Mesoamerica. We don’t actually know what they called themselves or their city. The name “Teotihuacan,” meaning “the home of the Gods,” comes from Nahuatl, the language of the Aztecs, who encountered the ruins centuries after the city had already collapsed.
A City Built by Many Peoples
Teotihuacan was not a homogeneous capital. Archaeological evidence reveals distinct ethnic neighborhoods, or barrios, where people from different regions of Mesoamerica settled and maintained their own cultural identities. The most well-documented is Tlailotlacan, an enclave of Zapotec people from Oaxaca who brought their own writing system, pottery styles, and burial practices. Their presence wasn’t temporary. They lived in the city for generations while preserving ties to their homeland.
Another neighborhood, known as the Merchants’ Barrio, housed people connected to the Gulf Coast and southeastern Mesoamerica. Isotope and archaeological analysis of this district revealed something striking about how these communities formed: the women were largely local, maintaining a pattern where men married into established households, while the men were mostly born elsewhere. In some of these ethnic enclaves, researchers estimate that as many as 80% of residents may have been born outside the city. The presence of Maya hieroglyphic writing alongside Zapotec and local Teotihuacan scripts underscores just how cosmopolitan this city was.
How Residents Were Organized
Most people in Teotihuacan lived in apartment compounds, a housing style unique in the ancient world at this scale. The city contained roughly 2,000 of these walled residential complexes, each housing extended families or groups bound by kinship, occupation, or ethnic ties. These weren’t cramped tenements. They were substantial stone structures with multiple rooms arranged around shared courtyards, and they came in clear tiers of wealth.
Archaeologists have identified at least three broad social classes based on housing. High-status compounds sat near the central Avenue of the Dead and featured lime plaster walls, cut stone construction, and elaborate mural paintings. Their layouts were spacious, with about 70% of the compound area devoted to common, non-residential space. Intermediate-status compounds, which made up the bulk of the city’s housing, were more densely packed, with dwellings clustered together and only about 38% common area. Low-status residences were simpler still, built with less durable materials. Across all six finer status levels that researchers have identified, the quality of construction, the presence of luxury goods, and the proximity to the city center tracked closely with social rank.
What People Did for a Living
Teotihuacan was an industrial powerhouse, and obsidian crafting was its signature industry. Surveys of the city identified over 100 obsidian workshops operating during the city’s peak, producing razor-sharp prismatic blades on a scale unmatched anywhere else in Mesoamerica. One excavated workshop compound alone yielded nearly 800,000 obsidian artifacts weighing over 400 kilograms, and projections for the full site suggest it may have contained 16 million artifacts weighing close to eight metric tons. Over 80% of the blades produced in these workshops left the premises, meaning they were made for trade and export rather than personal use.
Obsidian was far from the only craft. Surveys identified more than 200 ceramic workshops, along with smaller numbers of workshops producing items from shell, mica, basalt, and other stone. The city’s economy was built on specialized production and long-distance trade, and many residents would have spent their working lives as skilled artisans rather than farmers.
Daily Life and Diet
The staple food was maize. Isotope analysis of skeletal remains consistently shows a diet dominated by C4 plants, which in Mesoamerica means corn. This held true across social classes, with no significant dietary difference between wealthy and poor residents in terms of their basic grain consumption. People supplemented maize with beans, squash, and other crops, along with some animal protein from rabbits, turkeys, and dogs.
Even residents of lower-status neighborhoods like Tlajinga, on the city’s southern outskirts, had access to goods from far-flung regions. Excavations there turned up mica from Oaxaca and Zapotec pottery, evidence that the city’s trade networks reached ordinary households, not just elites. Life in Teotihuacan, for most people, meant living in a dense urban environment surrounded by neighbors who might speak a different language, worship different traditions, and maintain connections to distant homelands.
Ancestor Worship and Household Religion
Religious life in Teotihuacan was deeply rooted in family. Beneath the floors and walls of apartment compounds, archaeologists have found burials that point to a widespread system of ancestor veneration. Families buried their dead within their own compounds and apparently organized their social identity around these ancestral ties. Each compound likely maintained its own small altar or ritual space where residents honored their forebears.
This household-level religious practice may have had political consequences. Some researchers argue that the strong kinship bonds formed around ancestor worship actually limited the power of any single ruler, because people’s primary loyalty was to their family compound rather than to a central authority.
Who Ruled the City
This is one of the great unsolved questions. Unlike Maya cities, which are covered in royal portraits, dynastic inscriptions, and rulers’ tombs, Teotihuacan has produced almost none of these markers of individual power. The city’s art and ideology consistently downplayed personal identity in favor of universal symbols and cosmological themes.
Two major theories compete. One holds that powerful rulers built the massive pyramids, organized the city’s rigid grid layout, and commissioned the large-scale human sacrifices found at the Feathered Serpent Pyramid around 200 CE. The sheer labor required for these projects, the argument goes, demanded centralized authority. The other theory sees Teotihuacan as a network of semi-autonomous communities governed collectively, more like a council than a kingdom, with power shared among co-rulers representing different groups. Most archaeologists now lean toward the idea that the city may have started with stronger centralized leadership in its early centuries but shifted toward a more collective form of government over time, particularly after what appears to have been a deliberate rejection of individual glorification in the city’s art and public spaces.
The End of Teotihuacan
Around 550 CE, Teotihuacan’s downtown was burned. The destruction was concentrated along the Avenue of the Dead and targeted temples and elite buildings, which strongly suggests this was an internal revolt rather than a foreign invasion. The city’s residents, or at least a significant faction of them, appear to have turned against their own ruling institutions. The city didn’t empty overnight, but it never recovered its former scale or influence. Its people dispersed across central Mexico, carrying Teotihuacan’s artistic styles, religious ideas, and cultural memory into the communities that would eventually give rise to the Toltecs and, much later, the Aztecs, who looked back on the abandoned ruins with awe and named it the place where the gods were born.