Alamo is home to 20,255 people in Texas. The median age is 29.2, younger than the US median of 38.9. 19% of adults hold a bachelor's degree, below the 36% national rate. 25.3% of residents live below the federal poverty line. The population is up 37% since 2000. Home values have more than tripled since 2000, reaching $145,100.
At a glance
Lower income
median household income $57,096, below the US median
US median: $82,259
Younger
median age 29.2
US median: 38.9
Less educated
19% hold a bachelor's degree
US average: 36%
Less affordable
home values up 103%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Alamo
What changed most since 1990
Population8,210 → 20,255(+147%)US over the same years: +35%
Median age31.9 → 29.2(−2.7 years)US over the same years: +6.0 years
Adults with a bachelor's degree11.5% → 18.9%(+7.3 pts)US over the same years: +15.3 pts
Alamo's population equals 2.3% of Hidalgo County's. Its number of households without a car equals 1.2% of the county's. Its number of veterans equals 4.0% of the county's.
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)12.8%(100)
US avg: 26.4%
Gulf War (1990s)9.8%(76)
US avg: 24.3%
Vietnam era38.3%(298)
US avg: 33.1%
Korean War1.8%(14)
US avg: 4.5%
World War II1.4%(11)
US avg: 1%
Share of the 779 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Alamo, decade by decade
Alamo population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
8,210
$42,474
$83,282
11.5%
43.3
2000
14,760
$43,589
$71,409
9.6%
43.0
2010
18,353
$50,737
$89,623
8.6%
32.8
2020
19,493
$45,266
$97,084
12.8%
28.1
2024
20,255
$57,096
$145,100
18.9%
33.4
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
