If you’re using Mara’s excellent instructions for working with Census 2010 data, you’ll need to know about Summary Levels or SUMLEVs in step 6. What are Census Summary Levels (SUMLEV)? Simple Answer: SUMLEV is a Census Bureau code to indicate geography type. For example, in the raw Census 2010 data, all states have a SUMLEV […]
Census 2010 Long Form
Photo by Andrew Neel on Unsplash There is no Census 2010 Long Form. I still get asked by planners and researchers about when will the Census 2010 Long Form data be released. So I hope to clear up the confusion around this topic. Bottom-line: there is no Census 2010 Long Form. It’s been replaced by […]
American Community Survey vs. Decennial Census: What’s the Difference
Photo by timothy muza on Unsplash This post explains the differences between the American Community Survey (ACS) and the Decennial Census and how those differences will impact your work. Background: Long Form and Short Form Remember back to the Census 2000 when some people were complaining about the Census form taking forever to fill out? […]
National Land Cover Data Set: when there’s no Local Land Use GIS data
Co-written by Aaron Herman Finding land use land cover data is a pain. Unless your project is within an MPO/COG that has historic and current land use shapefiles that are easy for your GIS guru to access, you can be up a creek without a paddle when it comes to finding good land use data. […]
Road Miles by State
Photo by Dan Gold on Unsplash This blog post was updated on March 25, 2019. I find myself googling for this data once a month or so. I just can’t seem to remember where to find it on the Federal Highway Administration’s website. Below are states by total 2017 lane miles–which is the most recent […]