- Lead
- 31,891
- Total
- 162,046
- vs nation
- R+18.2
- Turnout
- 61.9%
Brazoria County, TX
▦ precinct · ▥ counties · ▢ no spatial detail
President margin by year
Place winner margin
President results by year
2024 turnout 61.9% of 268,566 citizens 18+
- Lead
- 28,205
- Total
- 154,984
- vs nation
- R+22.7
- Turnout
- 62.7%
- Lead
- 29,591
- Total
- 121,181
- vs nation
- R+26.5
- Turnout
- 54.3%
- Lead
- 36,441
- Total
- 106,739
- vs nation
- R+38.0
- Turnout
- —
- Lead
- 31,035
- Total
- 104,940
- vs nation
- R+36.8
- Turnout
- —
- Lead
- 34,758
- Total
- 93,248
- vs nation
- R+34.8
- Turnout
- —
- Lead
- 28,562
- Total
- 80,019
- vs nation
- R+36.2
- Turnout
- —
- Lead
- 13,433
- Total
- 65,638
- vs nation
- R+29.0
- Turnout
- —
Key facts
- 2024 presidential margin
- R+19.7MIT Election Lab
- Population
- 391,2552024 5-year
- Population density
- 287 / sq mi2024 5-year · TIGER/Line
- Land area
- 1,363 sq miTIGER/Line
- Median household income
- $97,9932024 5-year
- White (non-Hispanic)
- 41.6%2024 5-year
- Black
- 15.9%2024 5-year
- Hispanic / Latino
- 31.6%2024 5-year
- Peak Democratic margin
- D+65.4 in 1936MIT Election Lab
- Peak Republican margin
- R+37.3 in 2004MIT Election Lab
- Most similar
- Tarrant County, TX · twin score 87.5
Turnout and midterm durability
Participation measured against the same-year citizen voting-age population. Audited cycles count total general-election participants — ballots or participating voters, not presidential candidate votes. Cycles before 2016 predate that series and are derived from the certified presidential returns instead; they are marked everywhere they appear and are excluded from the figures below.
- 2024 turnout
- 61.9%166,123 participants ÷ 268,566 CVAP
- 2020→2022 drop-off
- +19.5 ptsVolatile
- Drop-off vs state
- +0.5 ptsPositive means a larger decline than the statewide pattern
- Mechanical 2026
- 42.3%–48.5%Recent-cycle and two-cycle persistence scenarios; not a forecast
Select a presidential cycle to show it on the map and results ledger above.
| Cycle | Participants | CVAP | Turnout | Series | Quality |
|---|---|---|---|---|---|
| 166,123 | 268,566 ± 2,357 | 61.9% | Audited | A/A | |
| 2022Mid | 110,243 | 255,330 ± 2,243 | 43.2% | Audited | A/A |
| 156,493 | 249,524 ± 2,296 | 62.7% | Audited | A/A | |
| 2018Mid | 112,145 | 238,564 ± 2,047 | 47.0% | Audited | A/A |
| 122,909 | 226,480 ± 2,003 | 54.3% | Audited | A/A | |
| 106,739 | 208,245 | 51.3% | Derived | — | |
| 104,940 | 193,290 | 54.3% | Derived | — | |
| 93,248 | 178,335 extrapolated | 52.3% | Derived | — |
Sources and methods
Audited cycles (2016, 2018, 2020, 2022, 2024) count total general-election participants against the same-year CVAP special tabulation, each cell carrying its own numerator and denominator quality grade. Derived cycles (2004, 2008, 2012) come from the certified presidential returns on this page over the ACS 5-year CVAP series, so they measure presidential votes cast rather than ballots — a floor on participation. Where a derived cycle predates the ACS its denominator is extrapolated rather than read, and says so on its own line below. They are shown for the longer arc and are excluded from the drop-off, excess-drop-off, and 2026 scenario figures above.
- 2024: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 311/228.
- 2022: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 306/183.
- 2020: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 301/2.
- 2018: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 297/138.
- 2016: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 293/111.
- 2012 (derived): Certified presidential returns · ACS 5-year CVAP (B05003); presidential votes cast — a floor on participation, not a ballot count.
- 2008 (derived): Certified presidential returns · ACS 5-year CVAP (B05003); presidential votes cast — a floor on participation, not a ballot count.
- 2004 (derived): Certified presidential returns · extrapolated CVAP denominator; presidential votes cast — a floor on participation, not a ballot count; 2004 predates the ACS, so the denominator is a linear back-extrapolation from the 2008 and 2012 CVAP values, not a read figure.
Interactive election map
One map. Every available contest.
The map and local result cover Brazoria County only. The complete contest result is shown below for comparison.
Brazoria County result
0 precinct units · 0 candidate votes
Show all 9 candidates
Governor contest result
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Explore precinct resultsSearch, sort, compare years, or export CSV · 80 precincts
Precinct data
Results by precinct
80 precincts · 162,046 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -Precinct 11Precinct 11 | 1,915 | 1,848 | 47 | 3,810 | 50.3% | 48.5% | D+1.8 |
|---|---|---|---|---|---|---|---|
| Precinct -Precinct 70Precinct 70 | 2,252 | 1,270 | 81 | 3,603 | 62.5% | 35.2% | D+27.3 |
| Precinct -Precinct 60Precinct 60 | 1,700 | 1,758 | 60 | 3,518 | 48.3% | 50.0% | R+1.6 |
| Precinct -Precinct 56Precinct 56 | 1,061 | 2,366 | 35 | 3,462 | 30.6% | 68.3% | R+37.7 |
| Precinct -Precinct 18Precinct 18 | 1,101 | 2,310 | 46 | 3,457 | 31.8% | 66.8% | R+35.0 |
| Precinct -Precinct 14Precinct 14 | 676 | 2,702 | 21 | 3,399 | 19.9% | 79.5% | R+59.6 |
| Precinct -Precinct 46Precinct 46 | 1,195 | 2,103 | 47 | 3,345 | 35.7% | 62.9% | R+27.1 |
| Precinct -Precinct 66Precinct 66 | 2,160 | 1,102 | 83 | 3,345 | 64.6% | 32.9% | D+31.6 |
| Precinct -Precinct 13Precinct 13 | 1,293 | 1,911 | 48 | 3,252 | 39.8% | 58.8% | R+19.0 |
| Precinct -Precinct 44Precinct 44 | 1,899 | 1,237 | 69 | 3,205 | 59.3% | 38.6% | D+20.7 |
| Precinct -Precinct 65Precinct 65 | 1,497 | 1,649 | 23 | 3,169 | 47.2% | 52.0% | R+4.8 |
| Precinct -Precinct 3Precinct 3 | 764 | 2,286 | 31 | 3,081 | 24.8% | 74.2% | R+49.4 |
| Precinct -Precinct 22Precinct 22 | 753 | 2,240 | 36 | 3,029 | 24.9% | 74.0% | R+49.1 |
| Precinct -Precinct 28Precinct 28 | 1,151 | 1,768 | 84 | 3,003 | 38.3% | 58.9% | R+20.5 |
| Precinct -Precinct 43Precinct 43 | 863 | 2,034 | 21 | 2,918 | 29.6% | 69.7% | R+40.1 |
| Precinct -Precinct 26Precinct 26 | 1,254 | 1,561 | 44 | 2,859 | 43.9% | 54.6% | R+10.7 |
| Precinct -Precinct 62Precinct 62 | 1,620 | 1,172 | 48 | 2,840 | 57.0% | 41.3% | D+15.8 |
| Precinct -Precinct 63Precinct 63 | 2,008 | 744 | 34 | 2,786 | 72.1% | 26.7% | D+45.4 |
| Precinct -Precinct 37Precinct 37 | 1,070 | 1,668 | 34 | 2,772 | 38.6% | 60.2% | R+21.6 |
| Precinct -Precinct 23Precinct 23 | 720 | 1,962 | 31 | 2,713 | 26.5% | 72.3% | R+45.8 |
| Precinct -Precinct 2Precinct 2 | 608 | 2,044 | 20 | 2,672 | 22.8% | 76.5% | R+53.7 |
| Precinct -Precinct 77Precinct 77 | 751 | 1,874 | 32 | 2,657 | 28.3% | 70.5% | R+42.3 |
| Precinct -Precinct 1Precinct 1 | 776 | 1,775 | 24 | 2,575 | 30.1% | 68.9% | R+38.8 |
| Precinct -Precinct 29Precinct 29 | 1,482 | 1,041 | 46 | 2,569 | 57.7% | 40.5% | D+17.2 |
| Precinct -Precinct 39Precinct 39 | 704 | 1,831 | 18 | 2,553 | 27.6% | 71.7% | R+44.1 |
| Precinct -Precinct 51Precinct 51 | 633 | 1,838 | 35 | 2,506 | 25.3% | 73.3% | R+48.1 |
| Precinct -Precinct 12Precinct 12 | 933 | 1,503 | 39 | 2,475 | 37.7% | 60.7% | R+23.0 |
| Precinct -Precinct 58Precinct 58 | 1,510 | 922 | 38 | 2,470 | 61.1% | 37.3% | D+23.8 |
| Precinct -Precinct 53Precinct 53 | 1,655 | 701 | 42 | 2,398 | 69.0% | 29.2% | D+39.8 |
| Precinct -Precinct 45Precinct 45 | 641 | 1,700 | 29 | 2,370 | 27.0% | 71.7% | R+44.7 |
| Precinct -Precinct 68Precinct 68 | 1,571 | 671 | 15 | 2,257 | 69.6% | 29.7% | D+39.9 |
| Precinct -Precinct 21Precinct 21 | 1,520 | 714 | 20 | 2,254 | 67.4% | 31.7% | D+35.8 |
| Precinct -Precinct 30Precinct 30 | 469 | 1,762 | 21 | 2,252 | 20.8% | 78.2% | R+57.4 |
| Precinct -Precinct 4Precinct 4 | 499 | 1,698 | 19 | 2,216 | 22.5% | 76.6% | R+54.1 |
| Precinct -Precinct 34Precinct 34 | 563 | 1,618 | 18 | 2,199 | 25.6% | 73.6% | R+48.0 |
| Precinct -Precinct 52Precinct 52 | 673 | 1,486 | 23 | 2,182 | 30.8% | 68.1% | R+37.3 |
| Precinct -Precinct 55Precinct 55 | 610 | 1,557 | 14 | 2,181 | 28.0% | 71.4% | R+43.4 |
| Precinct -Precinct 50Precinct 50 | 1,539 | 567 | 65 | 2,171 | 70.9% | 26.1% | D+44.8 |
| Precinct -Precinct 75Precinct 75 | 567 | 1,572 | 12 | 2,151 | 26.4% | 73.1% | R+46.7 |
| Precinct -Precinct 54Precinct 54 | 1,259 | 820 | 36 | 2,115 | 59.5% | 38.8% | D+20.8 |
| Precinct -Precinct 48Precinct 48 | 615 | 1,462 | 22 | 2,099 | 29.3% | 69.7% | R+40.4 |
| Precinct -Precinct 47Precinct 47 | 788 | 1,181 | 36 | 2,005 | 39.3% | 58.9% | R+19.6 |
| Precinct -Precinct 59Precinct 59 | 1,189 | 635 | 91 | 1,915 | 62.1% | 33.2% | D+28.9 |
| Precinct -Precinct 32Precinct 32 | 324 | 1,569 | 13 | 1,906 | 17.0% | 82.3% | R+65.3 |
| Precinct -Precinct 15Precinct 15 | 228 | 1,643 | 7 | 1,878 | 12.1% | 87.5% | R+75.3 |
| Precinct -Precinct 69Precinct 69 | 1,184 | 611 | 48 | 1,843 | 64.2% | 33.2% | D+31.1 |
| Precinct -Precinct 79Precinct 79 | 1,253 | 553 | 21 | 1,827 | 68.6% | 30.3% | D+38.3 |
| Precinct -Precinct 67Precinct 67 | 1,213 | 497 | 49 | 1,759 | 69.0% | 28.3% | D+40.7 |
| Precinct -Precinct 80Precinct 80 | 328 | 1,405 | 15 | 1,748 | 18.8% | 80.4% | R+61.6 |
| Precinct -Precinct 27Precinct 27 | 816 | 882 | 35 | 1,733 | 47.1% | 50.9% | R+3.8 |
| Precinct -Precinct 72Precinct 72 | 1,095 | 564 | 54 | 1,713 | 63.9% | 32.9% | D+31.0 |
| Precinct -Precinct 49Precinct 49 | 229 | 1,415 | 12 | 1,656 | 13.8% | 85.4% | R+71.6 |
| Precinct -Precinct 5Precinct 5 | 301 | 1,318 | 13 | 1,632 | 18.4% | 80.8% | R+62.3 |
| Precinct -Precinct 40Precinct 40 | 333 | 1,228 | 17 | 1,578 | 21.1% | 77.8% | R+56.7 |
| Precinct -Precinct 41Precinct 41 | 889 | 634 | 32 | 1,555 | 57.2% | 40.8% | D+16.4 |
| Precinct -Precinct 33Precinct 33 | 347 | 1,127 | 16 | 1,490 | 23.3% | 75.6% | R+52.3 |
| Precinct -Precinct 17Precinct 17 | 587 | 801 | 10 | 1,398 | 42.0% | 57.3% | R+15.3 |
| Precinct -Precinct 73Precinct 73 | 848 | 477 | 13 | 1,338 | 63.4% | 35.7% | D+27.7 |
| Precinct -Precinct 78Precinct 78 | 507 | 775 | 14 | 1,296 | 39.1% | 59.8% | R+20.7 |
| Precinct -Precinct 7Precinct 7 | 509 | 770 | 11 | 1,290 | 39.5% | 59.7% | R+20.2 |
| Precinct -Precinct 35Precinct 35 | 217 | 1,060 | 11 | 1,288 | 16.8% | 82.3% | R+65.5 |
| Precinct -Precinct 16Precinct 16 | 334 | 932 | 15 | 1,281 | 26.1% | 72.8% | R+46.7 |
| Precinct -Precinct 6Precinct 6 | 135 | 1,103 | 20 | 1,258 | 10.7% | 87.7% | R+76.9 |
| Precinct -Precinct 25Precinct 25 | 253 | 895 | 14 | 1,162 | 21.8% | 77.0% | R+55.2 |
| Precinct -Precinct 36Precinct 36 | 377 | 762 | 11 | 1,150 | 32.8% | 66.3% | R+33.5 |
| Precinct -Precinct 76Precinct 76 | 238 | 883 | 10 | 1,131 | 21.0% | 78.1% | R+57.0 |
| Precinct -Precinct 24Precinct 24 | 227 | 861 | 9 | 1,097 | 20.7% | 78.5% | R+57.8 |
| Precinct -Precinct 20Precinct 20 | 197 | 839 | 7 | 1,043 | 18.9% | 80.4% | R+61.6 |
| Precinct -Precinct 19Precinct 19 | 391 | 631 | 16 | 1,038 | 37.7% | 60.8% | R+23.1 |
| Precinct -Precinct 9Precinct 9 | 363 | 605 | 9 | 977 | 37.2% | 61.9% | R+24.8 |
| Precinct -Precinct 57Precinct 57 | 226 | 664 | 4 | 894 | 25.3% | 74.3% | R+49.0 |
| Precinct -Precinct 31Precinct 31 | 149 | 691 | 7 | 847 | 17.6% | 81.6% | R+64.0 |
| Precinct -Precinct 61Precinct 61 | 183 | 642 | 10 | 835 | 21.9% | 76.9% | R+55.0 |
| Precinct -Precinct 71Precinct 71 | 501 | 304 | 11 | 816 | 61.4% | 37.3% | D+24.1 |
| Precinct -Precinct 10Precinct 10 | 109 | 633 | 2 | 744 | 14.7% | 85.1% | R+70.4 |
| Precinct -Precinct 8Precinct 8 | 106 | 401 | 5 | 512 | 20.7% | 78.3% | R+57.6 |
| Precinct -Precinct 38Precinct 38 | 134 | 341 | 10 | 485 | 27.6% | 70.3% | R+42.7 |
| Precinct -Precinct 42Precinct 42 | 156 | 305 | 7 | 468 | 33.3% | 65.2% | R+31.8 |
| Precinct -Precinct 64Precinct 64 | 133 | 216 | 5 | 354 | 37.6% | 61.0% | R+23.4 |
| Precinct -Precinct 74Precinct 74 | 49 | 167 | 2 | 218 | 22.5% | 76.6% | R+54.1 |
presidential history
Party record book
Brazoria County, TX · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1904–2024 · 31 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1940
82.5%
3,781 votes · D+65.0
Runner-up · Franklin D. Roosevelt, 1932 · 82.4%
Republican
George W. Bush2004
68.3%
63,662 votes · R+37.3
Runner-up · Ronald Reagan, 1984 · 67.5%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Kamala Harris2024
63,976votes
39.5% of the vote · R+19.7
Runner-up · Joe Biden, 2020 · 62,228 votes
Republican
Donald Trump2024
95,867votes
59.2% of the vote · R+19.7
Runner-up · Donald Trump, 2020 · 90,433 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Franklin D. Roosevelt1940
+55.1pts D vs U.S.
Place D+65.0 · U.S. D+9.9
Runner-up · Franklin D. Roosevelt, 1944 · +53.5 pts
Republican
Mitt Romney2012
+38.0pts R vs U.S.
Place R+34.1 · U.S. D+3.9
Runner-up · John McCain, 2008 · +36.8 pts
Current officeholders
Seats representing Brazoria County, TX. A county elects none of these itself — they are the members for the 2 congressional, 2 state senate and 2 state house districts it falls inside, so parts of the county are represented by different members.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row shows U.S. House votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
Registered voters
Total registered voters, over time
| Year | Total registered |
|---|---|
| 2016 | 197,568 |
| 2018 | 205,435 |
| 2020 | 224,256 |
| 2022 | 234,988 |
| 2024 | 249,840 |
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
+4,849 net domestic migration · 2025
Net +64,652 over 2011–2025 · gain loss
Arrivals reported $70,186 in average income, against $95,865 for residents who stayed — 27% lower. (IRS SOI, 2022–23)
The places arrivals came from lean R+0.8 on average — 19 points more Democratic-leaning than Brazoria County, TX itself (R+19.7).
Where arrivals came from lean of each source
- Harris County, TX5,157D+5.5
- Fort Bend County, TX1,409D+1.6
- Galveston County, TX843R+27.4
- Montgomery County, TX183R+45.5
- Matagorda County, TX134R+50.5
- Travis County, TX131D+39.3
Where departures went households, 2022–23
- Harris County, TX3,625
- Fort Bend County, TX950
- Galveston County, TX833
- Montgomery County, TX256
- Travis County, TX165
- Matagorda County, TX136
Migration is one input to a place’s political change, not its cause — a shift can also come from residents changing their minds, generational turnover, or turnout. These figures describe the places people moved between; they do not measure how any mover voted.
| Year | Net domestic migration |
|---|---|
| 2011 | +1,683 |
| 2012 | +2,101 |
| 2013 | +2,793 |
| 2014 | +4,433 |
| 2015 | +4,399 |
| 2016 | +4,870 |
| 2017 | +5,911 |
| 2018 | +4,496 |
| 2019 | +3,025 |
| 2021 | +3,831 |
| 2022 | +6,668 |
| 2023 | +8,251 |
| 2024 | +7,342 |
| 2025 | +4,849 |
Brazoria County's economy anchors on the Gulf Coast petrochemical industry, and its electorate has shifted roughly 15 points toward Republican presidential candidates over the past four cycles, outpacing the statewide trend.
Across the recorded series it reached a Democratic high of 65.4 points in 1936 and a Republican high of 37.3 points in 2004. Between 2020 and 2024 the county moved 1.5 points toward the Republican candidate; the 2024 margin was 19.7 points.
A population of 391,255, a 42% non-Hispanic-white share, and a median household income of $97,993 describe the county. The county's voting pattern over the last decade is most similar to that of Tarrant County and Benton County.
The counties whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Browse places by community — income, education, race & ethnicity, language — all community cuts →
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Brazoria County, Texas. Akashic. https://akashic.app/county/48039/. Accessed May 20, 2026. License: CC BY 4.0.