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Census Basics

summary of important basic information on finding and using Census data

Portals and Tools

graphMany searches for information in Census data will require a lot of work. But there are some tools and portals that can make finding basic information easier. Below are some important ones.

First, from

A quick way to get population counts (in a plain text file) for counties from 1900 to 1990 is by plugging your state's two-digit postcode abbreviation into this URL, which gives the table for Colorado:

checkOther institutions have also developed useful tools for finding Census data: