Allen TX vs San Marcos TX — Cost of Living, Crime & Income Comparison 2026
Updated May 2026 · Source: US Census ACS 5-Year (2023), FBI CDE (2023), BLS OEWS (2024)
Allen, TX
Texas · Population: 107,684
- Median HH Income$129,130
- Median Home Price$502,170
- Unemployment4.3%
- Bachelor's+56.1%
San Marcos, TX
Texas · Population: 99,507
- Median HH Income$64,146
- Median Home Price$313,452
- Unemployment3.2%
- Bachelor's+24.9%
Detailed Comparison
Demographics
Population
Allen
107,684
Allen +
San Marcos
99,507
Pop. Density / sq mi
Lower = more space
Allen
N/A
San Marcos
N/A
Median Age
Allen
38.5
San Marcos
35.2
San Marcos +
Foreign Born
Allen
21.9%
Allen +
San Marcos
5.8%
White
Allen
55.7%
San Marcos
66.6%
San Marcos +
Black
Allen
10.6%
Allen +
San Marcos
4.3%
Asian
Allen
19.6%
Allen +
San Marcos
1.4%
Hispanic
Allen
11.8%
San Marcos
42.2%
San Marcos +
Spanish at Home
Allen
N/A
San Marcos
N/A
| Metric | Allen, TX | San Marcos, TX | Better |
|---|---|---|---|
| Population | 107,684 | 99,507 | Allen + |
| Pop. Density / sq miLower = more space | N/A | N/A | - |
| Median Age | 38.5 | 35.2 | San Marcos + |
| Foreign Born | 21.9% | 5.8% | Allen + |
| White | 55.7% | 66.6% | San Marcos + |
| Black | 10.6% | 4.3% | Allen + |
| Asian | 19.6% | 1.4% | Allen + |
| Hispanic | 11.8% | 42.2% | San Marcos + |
| Spanish at Home | N/A | N/A | - |
Economy
Median HH Income
Allen
$129,130
Allen +
San Marcos
$64,146
Per Capita Income
Allen
$54,853
Allen +
San Marcos
$33,835
Per Capita Personal Income (MSA)
BEA MSA-level
Allen
$63,758
San Marcos
$63,758
Tie
Unemployment Rate
Allen
4.3%
San Marcos
3.2%
San Marcos +
Poverty Rate
Allen
4.8%
Allen +
San Marcos
11.9%
Bachelor's Degree+
Allen
56.1%
Allen +
San Marcos
24.9%
| Metric | Allen, TX | San Marcos, TX | Better |
|---|---|---|---|
| Median HH Income | $129,130 | $64,146 | Allen + |
| Per Capita Income | $54,853 | $33,835 | Allen + |
| Per Capita Personal Income (MSA)BEA MSA-level | $63,758 | $63,758 | Tie |
| Unemployment Rate | 4.3% | 3.2% | San Marcos + |
| Poverty Rate | 4.8% | 11.9% | Allen + |
| Bachelor's Degree+ | 56.1% | 24.9% | Allen + |
Housing
Median Home Value
Zillow ZHVI / Census ACS
Allen
$502,170
San Marcos
$313,452
San Marcos +
Homeownership Rate
Allen
69.8%
Allen +
San Marcos
63.3%
| Metric | Allen, TX | San Marcos, TX | Better |
|---|---|---|---|
| Median Home ValueZillow ZHVI / Census ACS | $502,170 | $313,452 | San Marcos + |
| Homeownership Rate | 69.8% | 63.3% | Allen + |
Safety
Violent Crime / 100K
FBI CDE (state-level est.)
Allen
442
San Marcos
442
Tie
Property Crime / 100K
FBI CDE (state-level est.)
Allen
2339
San Marcos
2339
Tie
| Metric | Allen, TX | San Marcos, TX | Better |
|---|---|---|---|
| Violent Crime / 100KFBI CDE (state-level est.) | 442 | 442 | Tie |
| Property Crime / 100KFBI CDE (state-level est.) | 2339 | 2339 | Tie |
Health
Obesity Rate
CDC PLACES
Allen
31.7%
Allen +
San Marcos
33.6%
Diabetes Rate
CDC PLACES
Allen
9.3%
San Marcos
7.9%
San Marcos +
Poor Mental Health
CDC PLACES — 14+ days/month
Allen
14.6%
Allen +
San Marcos
22.3%
No Health Insurance
CDC PLACES
Allen
8.9%
Allen +
San Marcos
19.7%
Binge Drinking
CDC PLACES
Allen
17.4%
Allen +
San Marcos
19.7%
Current Smokers
CDC PLACES
Allen
9.2%
Allen +
San Marcos
11.0%
| Metric | Allen, TX | San Marcos, TX | Better |
|---|---|---|---|
| Obesity RateCDC PLACES | 31.7% | 33.6% | Allen + |
| Diabetes RateCDC PLACES | 9.3% | 7.9% | San Marcos + |
| Poor Mental HealthCDC PLACES — 14+ days/month | 14.6% | 22.3% | Allen + |
| No Health InsuranceCDC PLACES | 8.9% | 19.7% | Allen + |
| Binge DrinkingCDC PLACES | 17.4% | 19.7% | Allen + |
| Current SmokersCDC PLACES | 9.2% | 11.0% | Allen + |
Climate
Avg Annual Temp
NOAA 1991–2020 normal
Allen
74.6°F
San Marcos
68.5°F
San Marcos +
Annual Precipitation
NOAA 1991–2020 normal
Allen
19.5 in
Allen +
San Marcos
35.7 in
| Metric | Allen, TX | San Marcos, TX | Better |
|---|---|---|---|
| Avg Annual TempNOAA 1991–2020 normal | 74.6°F | 68.5°F | San Marcos + |
| Annual PrecipitationNOAA 1991–2020 normal | 19.5 in | 35.7 in | Allen + |
Air Quality
PM2.5 Annual Avg
EPA AQS (state-level est.)
Allen
9.2 µg/m³
San Marcos
9.2 µg/m³
Tie
Good Air Days
AQI ≤ 50
Allen
55.0%
San Marcos
55.0%
Tie
| Metric | Allen, TX | San Marcos, TX | Better |
|---|---|---|---|
| PM2.5 Annual AvgEPA AQS (state-level est.) | 9.2 µg/m³ | 9.2 µg/m³ | Tie |
| Good Air DaysAQI ≤ 50 | 55.0% | 55.0% | Tie |
Commute
Mean Commute Time
Census ACS
Allen
30.3 min
San Marcos
19.0 min
San Marcos +
| Metric | Allen, TX | San Marcos, TX | Better |
|---|---|---|---|
| Mean Commute TimeCensus ACS | 30.3 min | 19.0 min | San Marcos + |
Which City is Right for You?
Allen leads in median household income at $129,130, while san Marcos offers more affordable housing with a median home price of $313,452. On public safety, San Marcos is safer with a violent crime rate of 442 per 100,000 residents, compared to 442 in Allen. San Marcos has a lower unemployment rate at 3.2%, and San Marcos has cleaner air (PM2.5 avg 9.2 µg/m³). For overall health outcomes, Allen scores better with a lower obesity rate of 31.7%.
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