The following steps were taken to produced the table titled 2017 Registered Voter Population for Congressional Districts- Harris County, TX (Estimated).

The data on the table only includes totals for registered voters in Harris County. *Partial means the Congressional District is only inpart within Harris County.

  1. A query of the Harris County Voter Roll was conducted to determine the number of registered voters in each Congressional District.
  2. Two surname queries for Spanish-surnamed registered voters were performed on the Harris County Voter Roll using different lists to estimate the number of Latino registered voters. The number of Spanish-surnamed registered voters produced by each list varied. The percent of Latino registered voters that appears on the table for each Congressional District is the mean.
  3. One surname query for Asian-surnamed registered voters was performed on the Harris County Voter Roll using only one list.
  4. To produced a number for non-Spanish, non Asian surnamed registered voters, the totals for Spanish-surnames and Asian-surnames were summed and then subtracted from the overall total of registered voters.
  5. The number of White and Black registered voters were estimated by calculating the ratio of voting age population (VAP) for non-Hispanic Whites and non-Hispanic Blacks in each Congressional District (according to Census information used for redistricting) and multiplying it by the number of non Spanish and Asian surnamed registered voters.