Williamson County votes cast, Nov 2026
159,307 ballots in Williamson County through the first eight days of early voting (Oct 26), counting early votes and mail ballots returned. That is 1.6x the 2022 midterm at the same point and 87% of 2024. Voters from the March Democratic primary cast 23.2% of early votes, against 10.0% at this point in 2022.
Countywide, 33.7% of 472,191 registered voters (24.4% in 2022, 41.2% in 2024 at this point)
1.6x 2022
Votes cast by day
Early votes in person and mail ballots returned, by date. 2022 and 2024 are lined up by days before Election Day, so each point compares the same stage of early voting (all three years started early voting on a Monday). 2022 and 2024 are from the Texas Secretary of State's daily voter lists; 2026 is from the county's roster, which dates every ballot. Mail is dated by the roster's ballot date, so a day's mail can differ slightly from the county's daily report; the running totals match. Hover or tap for each year's numbers.
In plain terms
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Ballots cast at the same point: early vote + mail
Early votes in person plus mail ballots returned, through the first eight days of early voting in each year (the same number of days before Election Day).
Ballots by ZIP code
Hover or tap a ZIP for its numbers; tap again to filter the dashboard to it.
ZIP shapes are Census ZIP Code Tabulation Areas, trimmed to the county line, with major highways for reference, so ZIPs that cross the county line show only their Williamson part. Williamson's lists show each voter's precinct but no address, so each precinct is placed in the ZIP where most of its addresses are; ZIP figures are close but not exact. ZIPs with few ballots can show extreme shading.
Party mix, same point in each election
Ballots split by which party's primary the voter took that March. "No primary" means they skipped it, not that they're independent. Party here means voting early or by mail in that year's March primary; Election Day primary voters count as "No primary" in every year, because the state's 2022 and 2024 primary lists leave them out. Head counts follow each primary's size: on that basis 47,730 Williamson voters took the Democratic primary in March 2026 and 36,636 the Republican one, while in March 2024, with no contested Democratic presidential race, it was 13,515 and 30,977. In November 2024, Trump won 51.2% of the county's two-party vote for President, so primary party is not a stand-in for the November vote.
Who is voting
Each 2026 ballot matched by state voter ID to the Texas Secretary of State's Nov 2024 and Nov 2022 early-voting lists for Williamson County. Those lists have no Election Day voters, so Election Day and not voting are one group. Bars compare early voters and mail voters.
How they voted in Nov 2024
Method in the last presidential
How they voted in Nov 2022
Method in the last midterm
ZIP codes
Every ZIP with at least 25 ballots in 2026, most ballots first. Tap a row to filter the dashboard to it. Dem/Rep shares are the percent of ballots from voters who voted early or by mail in each party's March 2026 primary.
| ZIP | City | Total | Dem % | Rep % |
|---|
Top precincts in Williamson County
Up to 25 county voting precincts by ballots cast. Each precinct sits in one ZIP here: the ZIP where most of its addresses are. Dem % and Rep % are the shares of ballots from voters who voted early or by mail in the March 2026 Democratic and Republican primaries.
| Precinct | Total | Dem % | Rep % |
|---|
Turnout against registration
Countywide early and mail ballots at the same point in each election, as a share of that year’s registered voters (Texas Secretary of State county tables). Registration grew 14% from 2022 to 2026, so raw ballot counts overstate the change in turnout by about that much. These three cards are countywide; the ZIP filter does not change them.
Who has shown up, by primary
Countywide, of the voters who took each party’s March primary, the share who had cast an early or mail ballot by this point. This is the cleaner enthusiasm measure: it does not depend on how big each primary was. In 2026 the Democratic primary was 1.3x the size of the Republican one, so Democratic head counts lead even where the two turn out at similar rates. Here a primary voter is one who voted early or by mail in that March’s primary: the state’s 2022 and 2024 primary lists leave out Election Day, so 2026 does too.
What past mixes produced
Countywide early and mail ballots at the same point in each election, by that year’s March primary, next to the county’s final result in the top race on the ballot (official canvass). Primary voters are a minority of every electorate and most “no primary” voters still lean one way, so the mix is a reference point against past results, not a forecast of this one. Primary voters are those who voted early or by mail in that March’s primary; Election Day primary voters count as no primary in every year. The last column is the result among early and mail voters alone, the slice the mix describes (2022 only: the county’s 2024 results have no early/mail split).
| Election | Ballots at this point | Dem primary | Rep primary | No primary | Final result, two-party | Early + mail voters’ result |
|---|---|---|---|---|---|---|
| 2022 · Governor | 101,117 | 11.0% | 18.4% | 70.7% | Abbott 50.3, O’Rourke 49.7 | O’Rourke 51.7, Abbott 48.3 |
| 2024 · President | 183,496 | 6.3% | 14.2% | 79.4% | Trump 51.2, Harris 48.8 | — |
| 2026 · so far | 159,307 | 23.4% | 17.4% | 59.1% | Not yet counted | — |
How this was built
Sources: Williamson County's cumulative Daily Voting Roster for the Nov 3 general through Oct 26, 2026 (the first eight days of early voting), from the Elections Department's page. Each record carries a state voter ID, voting precinct, method (early in person or mail returned) and ballot date, but no address. A voter on both lists counts once, as an early voter. The early-voter lists match the county's posted daily counts within 2 votes.
Williamson's lists have no addresses, so each voter is placed in the ZIP code that holds most of the addresses in their voting precinct, counted from the county's GIS address points (94% of the county's addresses sit in their precinct's main ZIP). 2026 voters use the current precinct map; 2024 and 2022 voters use the 2022–23 map, under which those elections were run.
Same-point comparisons line up each year by days before Election Day: early votes through the first eight days of early voting (Oct 26, 2026; Oct 28, 2024; Oct 31, 2022), plus mail ballots returned by that date. 2024 and 2022 come from the Texas Secretary of State's daily early-voting voter lists for Williamson County, whose totals equal the state's published county figures for every day. Those lists have no Election Day voters, so "didn't vote early in 2024" means not on the state's Nov 2024 early or mail lists; some of those voters voted on Election Day. The Round Rock and Cedar Park zone is the eight ZIPs along the Travis County line: 78664, 78665 and 78681 (Round Rock), 78613 (Cedar Park), and the Austin ZIPs 78717 (Brushy Creek and Avery Ranch), 78729 and 78750 (Anderson Mill) and 78728 (Wells Branch). The rest of the county includes Georgetown, Leander, Liberty Hill, Hutto, Taylor, Jarrell and the eastern farm towns.
Party is primary participation, not registration: voters who cast an early or mail ballot in that year's March primary. 2026 is from the county's March 2026 primary roster and 2024 and 2022 from the Secretary of State's primary lists. Those state lists have no Election Day voters, so the county's 33,155 Election Day primary voters in 2026 are left out too, and every year is counted the same way. On that basis, 47,730 voters took the Democratic primary in March 2026 and 36,636 the Republican one; in March 2024, with an uncontested Democratic presidential primary, it was 13,515 and 30,977. Texas has no party registration. In November 2024, Trump won 51.2% of the county's two-party vote for President. Williamson's roster carries no birth dates, so there is no age breakdown. Party colors follow each party's logo: Democratic blue and Republican red.