Texas / TX-31
Texas District 31
Score
Irregularity score 34 CompactLess compact than 29% of other congressional districts.
304th least compact of 429 nationally, 36th of 38 in Texas.
A score describes shape, not intent. Coastlines, rivers and the Voting Rights Act can all make a district irregular. How scores work
The three measures
- Polsby-Popper
- 0.31at least as compact as 73% of districts on this measure
Area compared with perimeter. Low for jagged or snaking edges.
- Reock
- 0.51at least as compact as 58% of districts on this measure
Area compared with the smallest circle around the district, counting only land. Low for stretched shapes.
- Convex hull
- 0.83at least as compact as 67% of districts on this measure
Area compared with a rubber band stretched around the district, counting only land. Low for bites and tentacles.
Each measure runs from 0 to 1, where 1 is a perfect circle or a shape with no dents.
New lines for 2026
Texas used a different map in the 2026 election than in 2024: the 2025 enacted plan (HB 4 / PLANC2333). Source: Texas Legislature Online
Cities and towns
The largest places with people in this district, from the 2020 Census. A place split between districts shows how many of its residents live in this one.
- Killeen cityall 153,095 residents
- Georgetown cityall 67,176 residents
- Temple city59,780 of its 82,073 residents
- Round Rock city48,170 of its 119,468 residents
- Copperas Cove cityall 36,670 residents
- Harker Heights cityall 33,097 residents
- Fort Hood communityall 28,295 residents
- Belton cityall 23,054 residents
- Gatesville cityall 16,135 residents
- Leander city13,210 of its 59,202 residents
And 38 smaller places. 25% of this district's people live outside any city, town or named community. How places are counted
ZIP codes
66 ZIP codes have residents in this district. 29 of them are split with other districts. A percentage is the share of that ZIP code's 2020 residents who live here.
Show all 66 ZIP codes
- 76436 (50%)
- 76442 (3%)
- 76457 (64%)
- 76501 (1%)
- 76502 (99%)
- 76504 (61%)
- 76511 (95%)
- 76513
- 76522
- 76525
- 76527
- 76528
- 76530
- 76531 (99%)
- 76534 (98%)
- 76537
- 76538
- 76539
- 76541
- 76542
- 76543
- 76544
- 76548
- 76549
- 76550
- 76554
- 76557 (30%)
- 76559
- 76561 (95%)
- 76565
- 76566
- 76571
- 76573
- 76574 (44%)
- 76577 (1%)
- 76578 (5%)
- 76596
- 76597
- 76598
- 76599
- 76634 (1%)
- 76637 (12%)
- 76657 (1%)
- 76689 (4%)
- 76801 (1%)
- 76844
- 76853 (99%)
- 76864
- 76870
- 76880
- 76890 (11%)
- 78605
- 78608
- 78611 (99%)
- 78626
- 78628
- 78633
- 78634 (35%)
- 78639 (12%)
- 78641 (26%)
- 78642
- 78654 (86%)
- 78664 (11%)
- 78665 (77%)
- 78674
- 78681 (48%)
These are the Census Bureau's ZIP code areas, which match residential ZIP codes closely. ZIP codes used only for PO boxes or a single organization aren't included. How ZIP codes are matched
2024 presidential vote
Shares of the votes for the two of them; other candidates are left out. Texas published 2024 results on its 2026 lines, and these are its figures. Where the votes come from
U.S. House
John Carter, Republican
Elected November 3, 2026, takes office January 3, 2027.
Unofficial results from the Texas Secretary of State, checked November 6, 2026. A race shows a winner once news decision desks have called it. Results become official when the state certifies them. Where this comes from
Texas's senators
- John Cornyn, RepublicanSeat on the November 3, 2026 ballot: James Talarico, Democrat, won and takes office January 3, 2027.
- Ted Cruz, Republican
Senators are elected by the whole state, so district lines don't change who they are. Senators serving as of November 6, 2026. Senators elected in November 2026 take office January 3, 2027. Where this comes from
Where it sits in Texas
- Very compact (0 to 19)
- Compact (20 to 39)
- Middle (40 to 59)
- Irregular (60 to 79)
- Very irregular (80 to 100)
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