† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupCastrovilleTexasUnited States
German20.8%8.3%12.5%
English13.3%7.9%9.5%
Irish11.3%6.0%9.4%
American6.6%4.6%5.3%
French3.4%1.5%1.6%
Scottish2.2%1.3%1.3%
Polish2.1%0.8%2.2%
Scotch-Irish1.6%——
Mexican38.7%32.1%11.3%
Puerto Rican0.5%0.8%1.8%
Guatemalan0.3%0.4%0.5%
Honduran0.3%0.8%0.3%
Spaniard0.3%0.3%—
Spanish0.3%——
Salvadoran0.2%1.2%0.7%
Colombian0.2%0.3%0.4%
African American†1.4%10.3%9.9%
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
Castroville
Texas
United States
Median age
48.8
35.7
39.1
Age 18–24
12.3%
9.7%
9.2%
Age 65 and older
22.7%
13.5%
17.2%
Household economy
Measure
Castroville
Texas
United States
Median household income
$78,460
$78,476
$84,427
Poverty rate
5.3%
13.8%
12.5%
Bachelor's degree or higher (25+)
27.9%
33.6%
35.6%
Languages at home
Measure
Castroville
Texas
United States
Speaks a non-English language at home
24.8%
35.2%
22.3%
Spanish
24.8%
28.2%
13.6%
Religious landscape
Measure
Castroville
Texas
United States
Catholic
—
20.1%
18.6%
Evangelical Protestant
—
23.5%
16.5%
Unclaimed / not counted
—
45.2%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Castroville, Texas
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−55.3%
2008
−46.2%
2012
−54.5%
2016
−52.9%
2020
−49.1%
2024
−52.7%
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. 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
23.2%Harris358
76.0%Trump1,170
0.8%
R+52.7
R+3.6
R+51.3
1,540
R
25.1%Biden394
74.3%Trump1,164
0.6%
R+49.1
D+3.8
R+53.6
1,567
R
22.0%Clinton276
74.9%Trump939
3.0%
R+52.9
D+1.6
R+55.0
1,253
R
22.2%Obama254
76.7%Romney879
1.1%
R+54.5
R+8.3
R+58.4
1,146
R
26.4%Obama306
72.6%McCain841
0.9%
R+46.2
D+9.1
R+53.5
1,158
R
21.9%Kerry240
77.3%Bush846
0.8%
R+55.3
—
R+52.9
1,095
Castroville's Alsatian heritage shapes a tight-knit community of roughly 3,000 on the Medina River, sitting in a suburban-rural corridor southwest of San Antonio where exurban growth is gradually shifting the local electorate.
Across the recorded series it reached a Republican high of 55.3 points in 2004. Between 2020 and 2024 the city moved 3.6 points toward the Republican candidate; the 2024 margin was 52.7 points.
A population of 3,092, a 48% non-Hispanic-white share, and a median household income of $78,460 describe the city.
In 2024, Castroville, Texas voted Republican by 52.7 points (R+52.7), carried by the Republican candidate. Out of 1,540 votes cast, 358 went Democratic and 1,170 went Republican.
How many people live in Castroville, Texas?
Castroville, Texas has a population of 3,092 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Castroville, Texas?
Median household income in Castroville, Texas is $78,460 — below the national median of $80,734. The Texas state median is $78,476.
What is the political history of Castroville, Texas?
Akashic tracks 6 presidential elections in Castroville, Texas from 2004 to 2024. Of those, 0 went Democratic and 6 went Republican.
