City

San Marcos, TX

2 ZIP codes  ·  Hays County  ·  Texas

👥87,775Population
💰$55,478Median HH Income▼ 27% below avg
🎂27.0Median Age
🏠$271,900Median Home Value≈ Avg
🎓43.0%College Grads▲ 11% above avg
📊5.6%Unemployment▲ 14% above avg
People & Population (ACS 2023 — weighted avg)
♂ Male 48.2% Female 51.8% ♀

Race & Ethnicity

White: 44.7%Hispanic: 43.8%Black: 4.9%Asian: 1.7%Other: 3.3%Race
White44.7%
Hispanic43.8%
Black4.9%
Asian1.7%
Other3.3%

Age Breakdown

Under 5
4%
5–17
10%
18–24
31%
25–44
28%
45–64
15%
65+
6%

Key Indicators

Median Age27.0 yrs
Avg HH Size2.35
Below Poverty21.5% ▲ 115% above avg
College Grads43.0% ▲ 11% above avg
Unemployment5.6% ▲ 14% above avg
No HS Diploma955 (2.2%)
HS Graduate10,599 (24.2%)
Some College4,965 (11.4%)
Associates8,397 (19.2%)
Bachelors3,321 (7.6%)
Graduate Degree15,474 (35.4%)

Education

No HS: 2.2%HS Grad: 24.2%Some College: 11.4%Associates: 19.2%Bachelors: 7.6%Graduate: 35.4%Edu
No HS2.2%
HS Grad24.2%
Some College11.4%
Associates19.2%
Bachelors7.6%
Graduate35.4%
Housing & Income

Housing Tenure

Owner: 38.4%Renter: 61.6%Tenure
Owner38.4%
Renter61.6%

Home Value Distribution

Under $50k
10%
$50k–$100k
4%
$100k–$150k
8%
$150k–$200k
12%
$200k–$300k
24%
$300k–$500k
29%
Over $500k
12%

Financials

Median HH Income$55,478 ▼ 27% below avg
Median Home Value$271,900 ≈ Avg
Home/Income Ratio4.9x (nat avg ~3.5x)
Median Rent$1,294/mo
Total Housing Units36,354
Vacant Units2,518

Income Distribution

Under $25k
22%
$25k–$50k
20%
$50k–$75k
23%
$75k–$100k
12%
$100k–$150k
13%
$150k–$200k
4%
Over $200k
6%
Employment & Commute

How People Get to Work

Drove Alone
83%
Public Transit
1%
Walked
5%
Work From Home
11%

Commute Time

Under 15 min
36%
15–30 min
30%
30–45 min
16%
Over 45 min
18%
Housing Stock

Year Built

Before 1940
2%
1940s–1950s
7%
1960s–1970s
11%
1980s–1990s
14%
2000+
66%
About San Marcos, TX

San Marcos is a city in Texas, located in Hays County. The city spans 2 ZIP codes and is home to approximately 87,775 residents. It is a young city, with a median age of 27 years.

Economically, San Marcos is a solidly middle-class community. The median household income of $55,478 is below the national average. Approximately 21.5% of residents live below the poverty line. The unemployment rate is 5.6%, near the national average.

The real estate market in San Marcos is a mid-range housing market. Median home values stand at $271,900, which is near the national average. Renters typically pay around $1,294 per month. At 38.4% owner-occupied, renters make up the majority — common in urban or college-town settings.

The population of San Marcos is well-educated. 43.0% of adults hold a bachelor's degree or higher — near the national average. The community is racially diverse, with White as the largest group at 44.7%.

San Marcos, TX offers residents a cost-conscious lifestyle within Texas. Spread across 2 ZIP codes, the city's neighborhoods vary in character, density, and demographics — explore each ZIP code below for a detailed breakdown.

ZIP Codes in San Marcos
ZIPPopulationMedian IncomeMedian HomeMedian RentUnemp.CollegeOwner Occ.
78666 87,775 $55,478 $271,900 $1,294 5.6% 43.0% 38.4%