What this section is. The full listing of Mexico City neighbourhoods covered by this site — the level at which this city is actually understood, because it is a federation of former villages rather than a single urban fabric.
The ones laid out as neighbourhoods. Santa María la Ribera and San Rafael, the first planned subdivisions the city ever had, from the 1860s. Juárez and the Roma, from around 1900, built for families imitating European life. The Condesa, from the 1920s, laid out on the oval of an old racecourse. Polanco, from the 1930s. Jardines del Pedregal, modernist, built on the lava field of the Xitle in the 1950s.
The ones that were towns first. Coyoacán, San Ángel, Tlalpan, Mixcoac, Azcapotzalco, Xochimilco — colonial or pre-Hispanic settlements that the city reached only in the twentieth century, and which kept their churches, squares, markets and festival calendars.
How to use the list. Pick one neighbourhood for a day and walk it properly, rather than crossing the city for three sights. The market, the parish and the main square tell you more about a barrio than any monument in it.
Practical notes. Always give the borough with an address: colonia names repeat.