2

(From comment) (if I understood correctly,) any geojson will be close enough to the format you are looking for. For example: https://raw.githubusercontent.com/datasets/geo-countries/master/data/countries.geojson


2

Try the open data portal for NYWC. For example, the NYC borough boundaries GIS data.


2

If by “submarket” you just mean “neighborhood” then there are plenty of open sources For example: https://github.com/veltman/snd3/blob/master/data/nyc-neighborhoods.geo.json


1

peaklist.org has a georeferenced dataset of "ultras" (peaks above 1500 meters in prominence) available as KMZ.


1

I'm not sure where you are but for the UK you can download postcode to lat/long tables from a variety of sources. UK postcodes to lat/long - this site also has a variety of other countries. You then seem to be asking how to convert a csv into a list. Obviously for an app you don't want to have to load the csv every time as its a fairly expensive operation ...


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