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Harris County: Hispanic Diffusion

March 5, 2011 Houston/Harris 3 Comments

One more map of Harris County. This comes at the instigation of State Rep. Mike Villareal, who asked in this past week’s House Redistricting Committee hearing for something below the level of County that showed growth in Hispanic population in the suburbs. Here’s the Harris County version of that.

Two things to keep in mind in order to properly stand in awe of what this means:

- The percentage growth is in terms of the population count of Hispanics in each Census Tract. In other words, I’m not comparing the percentage of the tract in 2000 vs 2010.

- While it’s tempting to look at the dark blue representing the highest growth in total Hispanic population, the important to realize that the cutoff point that I used for this map was that dark blue represents 100% or more growth. In short – doubling (or more) of the Hispanic numbers in each Census Tract. And it’s not just the case of it being small numbers being multiplied out to a respectable number. In several cases,we’re looking at 2000 counts in the thousands and then 2010 counts in the even-more-thousands. I’ll ultimately run this type of map for as many counties as I can (the changes in Census Tract numbering gets a bit more complex in other counties, though).

With that, enjoy …


Legend:
Dark Blue – 100%+ growth
Blue – 0-100% growth
Orange – 0-10% loss
Red – 10%+ loss

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Currently there are "3 comments" on this Article:

  1. Greg:

    Great blog, man. I’m learning a lot about the state and local redistricting scene in Texas from your posts. Quick question on the map illustrating Hispanic Diffusion in Harris County. Can you clarify what you mean by growth. In the description you write:

    “The percentage growth is in terms of the population count of Hispanics in each Census Tract. In other words, I’m not comparing the percentage of the tract in 2000 vs 2010.”

    And I’m hung up on the part that says you are NOT comparing 2000 vs 2010 figures for the same tract. So, what precisely is being compared?

    Best,

    Francisco

  2. gregwythe says:

    Thanks. I’m just counting the overall population growth in terms of the raw number of Hispanics reported in the 2000 and 2010 Census results.

    There are effectively two different ways to look at growth … to see if the Hispanic % within that tract went from X% to Y% or two measure the percentage growth from the 2000 Hispanic population count to 2010 Hispanic population count. They can both be informative in different ways, but I chose the latter since it was a more straightforward calculation. I do need to get around to looking at it both ways, however.

  3. Bruce Austin says:

    Greg, you informing the general public is an outstanding public service. In my attempt to develop a forecasting model, even in a least-square projection, historical data is required. The census is a bit confusing, on one hand it counts Persons of Hispanic or Latino origin, percent (2010) as 40.8 percent and White persons not Hispanic, percent, 2010 as 33.0% of population. The footnote attached to these numbers disclose that Hispanics may be of any race, so also are included in applicable race categories. Therefore, is there a Hispanic only somewhere?

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