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Tom Green County, TX election informationNovember 3, 2026Brought to you by CulturaMinds

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County Treasurer

Who is on the ballot for County Treasurer in Tom Green County, Texas, on November 3, 2026? This guide lists one person running for County Treasurer: Dianna M. Spieker (Republican, incumbent).

People running in this race. Party is shown when the official list names one.

These notes are for Tom Green County, Texas offices with only one name on the Texas Secretary of State ballot certification for the November 3, 2026 general election. The report is dated August 28, 2026. The Tom Green County section is pages 1237 and 1238. The certification lists one name, and the party on each line is REP. These pages say certified.

Ballot certification: https://www.sos.texas.gov/elections/forms/2026-ballot-cert.pdf

This page does not endorse anyone.

Dianna M. Spieker

Dianna M. Spieker, Republican, is the only name certified for County Treasurer. The treasurer page lists Dianna Spieker, 1999 to the present, and says the office handles deposits, withdrawals, and reconciliations, serves as investment officer, and also covers indigent health care, justice and county court compliance, and the bail bond board. Her July 2026 campaign finance report names Dianna M. Spieker and lists Tom Green County Treasurer as both the office held and the office sought for the November 3, 2026 general election.

Ballot certification

Treasurer page

July 2026 campaign finance report

What this job is

The county treasurer handles the county's money. The treasurer page says the office handles deposits, withdrawals, and reconciliations, and that the treasurer is the investment officer. The same page says the office also covers indigent health care, justice and county court compliance, and the bail bond board.

Source: Tom Green County treasurer

The area

This office covers Tom Green County, Texas.

The U.S. Census Bureau's 2024 population estimate for Tom Green County, Texas is 120,103. The Comptroller's rural snapshot says the 2020 census count was 120,003, and that San Angelo is the county seat. The city's 2024 population estimate is 100,159. The same snapshot says the median income for a household in the county is $59,853. It does not say which year that income figure is from.

Sources: U.S. Census Bureau, 2024 county population estimates; U.S. Census Bureau, 2024 city and town population estimates; Texas Comptroller, Tom Green County rural snapshot; U.S. Census Bureau, 2024 cartographic boundaries; U.S. Census Bureau, 2024 TIGER/Line roads; U.S. Geological Survey, Global Map 1:1,000,000-scale rivers and lakes

Map of Tom Green County, Texas, outlined and hatched in red, with the neighboring counties named, San Angelo and nearby towns, lakes, rivers, and highways. A small map of Texas shows where the county is.Open the map full size
Tom Green County, Texas is outlined and hatched in red. Everything outside it is shaded gray, with the neighboring counties named. Dots are Census places; San Angelo is the square. Blue lines and shapes are rivers and lakes from the U.S. Geological Survey 1:1,000,000-scale Global Map. Shields mark interstates and U.S. highways, from Census Bureau 2024 road lines. The small map shows where this view sits in Texas. This is not a survey map.

Main industries here

The Comptroller's 2025 productivity report classifies 660,291 acres in Tom Green County, Texas as native pasture and 166,059 acres as dry crop. Those are land classes, not a count of jobs.

The Comptroller's West Texas report covers 30 counties, including Tom Green County, Texas, and the Midland and Odessa metro areas. In that region, the largest industries by employment were oil and gas extraction, support activities for mining, restaurants and other eating places, public education, and construction. The report does not publish a separate industry list for Tom Green County, Texas.

Sources: Texas Comptroller, 2025 productivity values for Tom Green County; Texas Comptroller, West Texas region

Who holds it now

Dianna M. Spieker. The treasurer page lists Dianna Spieker, 1999 to the present.

Source: Tom Green County treasurer

Who held this seat

The treasurer page lists Dianna Spieker, 1999 to the present. It does not list who held the office before 1999.

Source: Tom Green County treasurer

The buttons keep terms that overlap that many years back from 2026. A term that reaches into the window is shown in full. This choice stays on this page.

A picture is shown when a public page publishes a portrait of that person. An empty box means no portrait was found. The picture is not part of the office list.

  1. Dianna M. Spieker

    1999 – present

    The treasurer page says Dianna Spieker, 1999 to the present.