Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
President results by year
Vote totals, margins, and source status
HarrisDemocratic40.9%219TrumpRepublican57.8%309OtherAll other candidates1.3%7
R+16.8
Lead
90
Total
535
vs nation
R+15.4
Turnout
—
BidenDemocratic57.3%293TrumpRepublican41.9%214OtherAll other candidates0.8%4
D+15.5
Lead
79
Total
511
vs nation
D+11.0
Turnout
—
ClintonDemocratic74.8%323TrumpRepublican20.6%89OtherAll other candidates4.6%20
D+54.2
Lead
234
Total
432
vs nation
D+52.1
Turnout
—
ObamaDemocratic77.7%289RomneyRepublican21.2%79OtherAll other candidates1.1%4
D+56.5
Lead
210
Total
372
vs nation
D+52.6
Turnout
—
ObamaDemocratic74.5%266McCainRepublican23.8%85OtherAll other candidates1.7%6
D+50.7
Lead
181
Total
357
vs nation
D+43.4
Turnout
—
KerryDemocratic54.6%143BushRepublican45.4%119OtherAll other candidates0.0%0
D+9.2
Lead
24
Total
262
vs nation
D+11.6
Turnout
—
Key facts
2024 presidential margin
R+16.8MIT Election Lab
Population
3,3092024 5-year
Median household income
$33,8752024 5-year
White (non-Hispanic)
4.8%2024 5-year
Black
0.0%2024 5-year
Hispanic / Latino
95.2%2024 5-year
Peak Democratic margin
D+56.5 in 2012MIT Election Lab
Peak Republican margin
R+16.8 in 2024MIT Election Lab
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
+9.2%
2008
+50.7%
2012
+56.5%
2016
+54.2%
2020
+15.5%
2024
−16.8%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle; not shown when either cycle is estimated or under source review. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
R
40.9%Harris219
57.8%Trump309
1.3%
R+16.8
R+32.3
R+15.4
535
D
57.3%Biden293
41.9%Trump214
0.8%
D+15.5
R+38.7
D+11.0
511
D
74.8%Clinton323
20.6%Trump89
4.6%
D+54.2
R+2.3
D+52.1
432
D
77.7%Obama289
21.2%Romney79
1.1%
D+56.5
D+5.8
D+52.6
372
D
74.5%Obama266
23.8%McCain85
1.7%
D+50.7
D+41.5
D+43.4
357
D
54.6%Kerry143
45.4%Bush119
0.0%
D+9.2
—
D+11.6
262
Federal and statewide elections · 2 House · 2 Senate
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.
Source · MIT Election Lab (MEDSL), Senate. CC BY 4.0.
Year
Won
Democratic
Republican
Total
2024
R
46.0%233
49.7%252
507
2020
D
58.0%265
42.0%192
457
South Alamo is a census-designated place in one of Texas's most Democratic-leaning counties, where Hispanic residents make up the overwhelming majority and turnout patterns closely track mobilization efforts in the broader McAllen metro.
Across the recorded series it reached a Democratic high of 56.5 points in 2012 and a Republican high of 16.8 points in 2024. Between 2020 and 2024 the city moved 32.3 points toward the Republican candidate; the 2024 margin was 16.8 points.
A population of 3,309, a 5% non-Hispanic-white share, and a median household income of $33,875 describe the city.
In 2024, South Alamo, Texas voted Republican by 16.8 points (R+16.8), carried by the Republican candidate. Out of 535 votes cast, 219 went Democratic and 309 went Republican.
When did South Alamo, Texas last vote Democratic?
The most recent presidential election in which South Alamo, Texas voted Democratic was 2020.
How many people live in South Alamo, Texas?
South Alamo, Texas has a population of 3,309 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in South Alamo, Texas?
Median household income in South Alamo, Texas is $33,875 — below the national median of $80,734. The Texas state median is $78,476.
What is the political history of South Alamo, Texas?
Akashic tracks 6 presidential elections in South Alamo, Texas from 2004 to 2024. Of those, 5 went Democratic and 1 went Republican.