How to get the Harris County voter file
Request it from the office below, send us the file, and you're ready to cut turf. Running countywide or in just part of Harris County? This is the office either way.
- Where to request it
- Harris County elections officephone: 713-274-8200 (Voter Registration) | email: [email protected] | address: Harris County Tax Office, P.O. Box 2109, Houston, TX 77210-2109
- Cost
- Per their services page, prices are set by labor + materials with a posted price table; in practice a full countywide voter list runs in the low-hundreds-of-dollars range for ~2.5M registered voters, plus postage. Confirm current rate via email to [email protected] before requesting.
- How to request
- Submit a written Open Records / Public Information Act request to the Harris County Tax Office (voter rolls live with the Tax Assessor-Collector in Harris). The Voter Registration Department publishes a price sheet for maps, precinct lists, and bulk voter data; pricing 'determined based on labor and materials.' Election-history extracts are produced as a separate file.
- Turnaround
- Texas PIA standard: 'promptly' / 10 business days to acknowledge; typically 1-3 weeks for a custom bulk extract.
- Use restrictions
- Same 18.066 affidavit / no-commercial-use rule as the SOS file applies to county-issued lists.
Costs and rules change, so confirm the current details with the office before you order. Once you have the file, we handle loading it, cutting turf, and getting your volunteers knocking.
Prefer the whole-state file, or running in a county not listed here? See the Texas statewide options.
Harris County at a glance.
Harris County had an estimated 5,009,302 residents in July 2024, the most populous of Texas's 254 counties, up 5.9% since the 2020 census. Of those, 3,736,684 are 18 or older, the voting-age population, and 12.3% are 65 or older. It covers 1,707 square miles of land (2,934 people per square mile), and 43.0% of residents live outside any incorporated city or town.
The largest cities and towns are Houston (part) (2,339,948), Pasadena (149,617), Baytown (part) (80,964), La Porte (38,046) and Deer Park (34,495). The American Community Survey (2020-2024) puts it at a median age of 34.6, a median household income of $74,983, 34.2% of adults 25 and older holding a bachelor's degree or higher and 54.7% of occupied homes owned by the people living in them. In 2024, 1,556,310 votes were cast for president, about 41.6% of the voting-age population; the Democratic ticket took 52.0% and the Republican ticket 46.4%.
The two-party margin moved from D+1.6 in 2008 to D+5.6 in 2024.
- Population (2024 estimate)
- 5,009,302
- Population (2020 census base)
- 4,731,433
- Voting-age population (18+)
- 3,736,684
- Residents 65 and older
- 12.3%
- People per square mile
- 2,934
- Living outside incorporated places
- 43.0%
- Land area
- 1,707 sq mi
- Median age
- 34.6
- Median household income
- $74,983
- Adults 25+ with a bachelor's degree
- 34.2%
- Owner-occupied homes
- 54.7%
Largest cities and towns
- Houston (part) 2,339,948
- Pasadena 149,617
- Baytown (part) 80,964
- La Porte 38,046
- Deer Park 34,495
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 52.0% | 46.4% | D+5.6 | 1,556,310 |
| 2020 | 56.0% | 42.7% | D+13.3 | 1,640,818 |
| 2016 | 54.2% | 41.8% | D+12.4 | 1,302,887 |
| 2012 | 49.4% | 49.3% | D+0.1 | 1,185,478 |
| 2008 | 50.4% | 48.8% | D+1.6 | 1,171,472 |
Sources: U.S. Census Bureau Vintage 2024 population estimates and 2024 Gazetteer; American Community Survey 2020–2024 5-year estimates; certified county presidential returns. Growth, density and turnout are simple arithmetic on those figures.
Get set up in Harris County
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