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78666 Zip Code Map | Maps, Demographics and Population for San Marcos, TX

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78666 is a 5-digit zip code located in San Marcos, Texas. San Marcos is the primary city for 78666 and is located in Hays. In the most recent US census the population of 78666 was 86584.

There are a total of 36,608 housing units in 78666, Texas. A total of 7.51% (2,750) are currently vacant.

Zip Code Products Showing 78666

Texas 3-Digit Zip Code Map Showing 78666

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County Map Showing 78666, Texas

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Population Figures for 78666

Total Population by Age

78666 has a total population of 86,584. In the bar chart and table below, this population is split into 18 different age range segments.

Most inhabitants of 78666 are in the 20 to 24 years age bracket. As of the last census, there are 20,356 people in this segment.

The 80 to 84 years segment is the smallest age range in 78666. There are just 937 people in this category.

Race and Gender Population of 78666

Women make up the highest portion of people in 78666. There are 42,121 men and 44,409 women in this 5-digit zip code.

Most people in this zip code are White, with a total of 58,603 people in this category.

The chart and table below shows the population of people and which race they belong to in 78666

Real Estate Figures

Housing Types in 78666 Zip Code

Below are two charts showing the amount of occupied vs vacant homes and the amount of renter vs owner occupied houses in the 78666 zip code.

The 78666 zip code area has a homeowner vacancy rate of 18.15% and a rental vacancy rate of 11.69%. This means there are a total of 2,750 vacant housing units throughout the zip code area. Conversely there are 33,173 housing units that are currently occupied.

Property Value in 78666

Most homes in 78666 are valued $300,000 to $499,999, with 30,401,010 houses in this category.

There are just 100080 houses valued at $300,000 to $499,999. As you can see in the chart and table below, this is the smallest segment in this zip code.

The affordability ratio for the 78666 zip code in Texas is 3.6. This is calculated by dividing the median housing value by the median income and is used to show how affordable a zip code is.

An affordability ratio of 3.6 is generally considered Medium (Moderately Affordable).

Heating Types for Homes in 78666

There are 7 different heating types used by people in the 78666 zip code area. As you can see from the table and chart below; Utility gas, Bottled, tank, or LP gas, Electricity, Wood, Solar energy, Other fuel, No fuel used are the most commonly used heating types in this area.

Electricity is most commonly used to heat homes in 78666. As you can see below, there are 25,312 houses that use this method.

Household Income Generated 12-months of 2022

The chart and tables below show the household income segments for households in the 78666. 9.5 of households are on the low end, earning less than $10,000 in 2022.

On the other end, 5.7 of households earned more than $200,000 in the same year. You will also see that the mean income of this zip code is around $68,664.

Most households in 78666 earn in the $50,000 to $74,999 range. 21% of households are in this segment.

Bedrooms, Rooms and Units in Structures in 78666

Below are three pie charts and tables showing the amount of bedrooms, total rooms and structures in houses for this zip code.

Most houses in 78666 have 5 or more bedrooms, with a total of 1,081 houses.

In regards to rooms in general, people in this zip code have an average of 4.7 rooms in their house. Most houses actually have 5 rooms in their house. 8,499 homes fit into this category.

8,499 homes in 78666 are in the 1-unit, detached category, which is the most common in terms of structures for this area.

The largest homes tracked, which are 20 units or more, make up 4348 of the houses in this zip code. On the other end, 25,301 houses make up the smallest homes, which are 1 unit, mobile homes or boats.

Healthcare and Hospitals

In Texas there are a total of 2 hospitals. In the table below you will see every hospital and medical facility in this state. You can download the data to see all the information we have on each hospital.

Universities

In Texas there are a total of 2 hospitals. In the table below you will see every hospital and medical facility in this state. You can download the data to see all the information we have on each hospital.

Crime and Law Enforcement