Choropleth map of german population

from BKG administrative units 1:250K using TopoJSON

states
counties
municipalities

Data is provided by the german NMA: GeoBasis-DE / BKG
The colors are taken from Colorbrewer 2.0!
Mapping framework: Leaflet
Mike Bostocks scripts D3.js and TopoJSON are used to realize the visualization!
Background tiles are provided by: