Where to Find Elusive GIS-Ready Census Data

For planners searching for hard to find historic census data in a GIS-ready format, the National Historical Geographic Information System (NHGIS) may be the one-stop shop you've been looking for.

1 minute read

October 11, 2012, 7:00 AM PDT

By Jonathan Nettler @nettsj


Begun in 2001 as a project of the Minnesota Population Center, a unit of the
University of Minnesota, with funding from the National Science
Foundation, NHGIS was created with "an ambitious goal to collect, format, and freely disseminate all
available aggregate census information for the entire country from the
past 220 years," write Jason Borah and Jonathan Schroeder. With an "ever-expanding cache of 15,000 tables and 430 shapefiles," NHGIS admirably fills in the gaps in data available through the U.S. Census Bureau's American FactFinder.

One of the major advantages of the historical information disseminated by NHGIS is that it is provided as standardized shapefiles, for use with GIS software. 

"Until recently, the data needed for assessing demographic change have
often been impossible to find, difficult to use, or too expensive to
obtain," note Borah and Schroeder. "With NHGIS and others making ever increasing amounts of
demographic data available through integrated systems that let users
assemble multiple years of data quickly, you will now be able to spend
more of your time analyzing data and putting it to use. Spending
valuable time aimlessly searching for needed census or GIS data
shouldn't be your job."

 

Monday, October 1, 2012 in APA

Young Professional

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban and Environmental Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban and Environmental Planner

Get top-rated, practical training for planners

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

September 16, 2026 - Zachary Whalen

Passengers board an Amtrak train under a cloudy sky.

Amtrak, CN end decades-long dispute with eight-year agreement

The new operating agreement establishes an updated framework for the companies to work together, including processes to resolve disputes.

September 18, 2026 - Mass Transit

The Gross Reservoir, a large body of water surrounded by trees and mountains.

Judges permit Denver to divert 77,000 acre feet from the Colorado River for reservoir expansion

Overuse and climate change have caused the Colorado River’s water levels to plummet.

September 18, 2026 - Inside Climate News

A painted bus lane in NYC.

NYC DOT wants faster, more permanent street upgrades

The city is examining ways to build more concrete infrastructure without getting entangled in 'decades-long' projects.

September 21 - NYC Streetsblog

A woman looks at a utility bill.

'Something we’ve never seen before:' rising utility rates could strain city finances nationwide

Data centers, climate change and other factors have caused utility rates in the United States to increase by 38% since 2020.

September 21 - Smart Cities Dive

A person scuba diving in a coral reef off Guam.

Trump to overrule local leaders, lease millions of acres of America’s Pacific Island territories’ seafloors to mining companies

International law says that the Indigenous people of America’s territories have a right to prior and informed consent regarding projects that impact their countries.

September 21 - Grist