How does your city define its neighborhoods/districts?

[Docere]

I think the 59 community districts are the main local unit for statistical collection.

I guess Manhattan can be characterized as having larger districts and smaller subsections/neighborhoods within: Carnegie Hill and Yorkville within the Upper East Side, East Village and Bowery within the Lower East Side etc.

This Wikipedia map is quite detailed, so it picks up very niche commercial areas like the Diamond District as well.

[iheartthed]

Originally Posted by Docere

This Wikipedia map is quite detailed, so it picks up very niche commercial areas like the Diamond District as well.

Ironically, it doesn't list the much more well known Theater District. The Diamond District is pretty obscure and even people who know about it mostly think of it as just the block in Midtown with all the diamond shops.

[Docere]

This is probably an impossible or unanswerable question but what's the right size for a neighborhood (population, land area etc.) From my own vantage point it seems like 0.5-1.5 square miles (or up to 3-4 sq km) seems about right in dense urban areas. Beyond that you're probably beyond your own "extended backyard."