HarrisDemocratic41.8%6,862TrumpRepublican57.8%9,487OliverLibertarian0.2%36
R+16.0- Lead
- 2,625
- Total
- 16,421
- vs nation
- R+14.5
Akashicmetro area
Rio Grande City-Roma, TX
Office (updates table and map)
President margin by year
Place winner margin
1 counties by 2024 margin · County returns · MIT Election Lab
President results by year
Vote totals, margins, and source status
BidenDemocratic52.1%9,123TrumpRepublican47.1%8,247OtherAll other candidates0.9%155
D+5.0- Lead
- 876
- Total
- 17,525
- vs nation
- D+0.5
ClintonDemocratic79.1%9,289TrumpRepublican18.9%2,224OtherAll other candidates1.9%227
D+60.2- Lead
- 7,065
- Total
- 11,740
- vs nation
- D+58.1
ObamaDemocratic86.3%10,260RomneyRepublican13.0%1,547OtherAll other candidates0.6%76
D+73.3- Lead
- 8,713
- Total
- 11,883
- vs nation
- D+69.5
ObamaDemocratic84.5%8,274McCainRepublican15.2%1,492OtherAll other candidates0.3%26
D+69.3- Lead
- 6,782
- Total
- 9,792
- vs nation
- D+62.0
KerryDemocratic73.6%7,199BushRepublican26.1%2,552OtherAll other candidates0.3%30
D+47.5- Lead
- 4,647
- Total
- 9,781
- vs nation
- D+50.0
GoreDemocratic76.9%6,505BushRepublican22.6%1,911OtherAll other candidates0.6%48
D+54.3- Lead
- 4,594
- Total
- 8,464
- vs nation
- D+53.8
ClintonDemocratic86.9%6,312DoleRepublican10.4%756OtherAll other candidates2.6%192
D+76.5- Lead
- 5,556
- Total
- 7,260
- vs nation
- D+68.0
Key facts
- 2024 presidential margin
- R+16.0MIT Election Lab
- Population
- 66,0672024 5-year
- Population density
- 54 / sq mi2024 5-year · TIGER/Line
- Land area
- 1,223 sq miTIGER/Line
- Median household income
- $37,6392024 5-year
- White (non-Hispanic)
- 2.3%2024 5-year
- Black
- 0.4%2024 5-year
- Hispanic / Latino
- 97.2%2024 5-year
- Peak Democratic margin
- D+94.1 in 1924MIT Election Lab
- Peak Republican margin
- R+16.0 in 2024MIT Election Lab
- Most similar
- Zapata, TX · twin score 96.4
presidential history
Party record book
Rio Grande City-Roma, TX · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1912–2024 · 29 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
John W. Davis1924
97.0%
756 votes · D+94.1
Runner-up · Franklin D. Roosevelt, 1932 · 95.9%
Republican
Donald Trump2024
57.8%
9,487 votes · R+16.0
Runner-up · Donald Trump, 2020 · 47.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2012
10,260votes
86.3% of the vote · D+73.3
Runner-up · Hillary Clinton, 2016 · 9,289 votes
Republican
Donald Trump2024
9,487votes
57.8% of the vote · R+16.0
Runner-up · Donald Trump, 2020 · 8,247 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
John W. Davis1924
+119.3pts D vs U.S.
Place D+94.1 · U.S. R+25.2
Runner-up · Al Smith, 1928 · +98.1 pts
Republican
Donald Trump2024
+14.5pts R vs U.S.
Place R+16.0 · U.S. R+1.5
Runner-up · Donald Trump, 2020 · −0.5 pts
voter registration
Registered voters
Total registered voters, over time
Registered voters
| Year | Total registered |
|---|---|
| 2016 | 31,134 |
| 2018 | 33,110 |
| 2020 | 34,050 |
| 2022 | 34,065 |
| 2024 | 36,420 |
domestic migration
Who moves in and out
Net domestic migration over time
−603 net domestic migration · 2025
20112025
Net −7,691 over 2011–2025 · gain loss
| Year | Net domestic migration |
|---|---|
| 2011 | −672 |
| 2012 | −824 |
| 2013 | −652 |
| 2014 | −540 |
| 2015 | −556 |
| 2016 | −639 |
| 2017 | −575 |
| 2018 | −617 |
| 2019 | −387 |
| 2021 | −279 |
| 2022 | −702 |
| 2023 | −269 |
| 2024 | −376 |
| 2025 | −603 |
Starr County, the core of this Rio Grande metro, is over 95% Hispanic yet delivered a Republican presidential margin for the first time in decades in 2020, signaling a realignment that analysts across the spectrum are still working to explain.
Across the recorded series it reached a Democratic high of 94.1 points in 1924 and a Republican high of 16.0 points in 2024. Between 2020 and 2024 the metro moved 21.0 points toward the Republican candidate; the 2024 margin was 16.0 points.
A population of 66,067, a 2% non-Hispanic-white share, and a median household income of $37,639 describe the metro. The metro's voting pattern over the last decade is most similar to that of Zapata, TX and Eagle Pass, TX.
Political twins — metros
The metros whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Zapata, TX
96.4twin score
12-yr trend% Latino% Catholic≠ 2004 margin
Eagle Pass, TX
95.4twin score
12-yr trend2008–2016 trajectory≠ elasticity
Laredo, TX
94.4twin score
12-yr trend2016 margin% Catholic≠ 2000 margin
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.
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 →
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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Rio Grande City-Roma, TX, Texas. Akashic. https://akashic.app/cbsa/40100/. Accessed May 20, 2026. License: CC BY 4.0.
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Frequently asked questions
How did Rio Grande City-Roma, TX, Texas vote in 2024?
In 2024, Rio Grande City-Roma, TX, Texas voted Republican by 16.0 points (R+16.0), carried by the Republican candidate. Out of 16,421 votes cast, 6,862 went Democratic and 9,487 went Republican.
When did Rio Grande City-Roma, TX, Texas last vote Democratic?
The most recent presidential election in which Rio Grande City-Roma, TX, Texas voted Democratic was 2020.
How many people live in Rio Grande City-Roma, TX, Texas?
Rio Grande City-Roma, TX, Texas has a population of 66,067 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Rio Grande City-Roma, TX, Texas?
Median household income in Rio Grande City-Roma, TX, Texas is $37,639 — below the national median of $80,734. The Texas state median is $78,476.
What is the political history of Rio Grande City-Roma, TX, Texas?
Akashic tracks 34 presidential elections in Rio Grande City-Roma, TX, Texas from 1892 to 2024. Of those, 28 went Democratic and 1 went Republican.