78121 Zip Code Population and Demographics

In this article, we'll explore the population statistics for the zip code 78121, including popular demographics data like median age, number of households, household income, gender, employment and unemployment rates, occupations, religion, and more.

78121 is a zip code in Guadalupe County and Wilson County, Texas, which covers Southwest Guadalupe CCD, Floresville CCD, and La Vernia, with a total population of 13,730 people.

We are using the latest American Community Survey (ACS) 5-Year survey data from the US Census Bureau, which is accurate up to 2021.

Table of Contents

Population

There is a lot of data that lets us see how many people live in the 78121 zip code. The most basic data is the total population, which is the total number of people living in 78121.

The estimated population of people living in 78121 is 13,730, with a median age of 39.8.

We can look back at data from previous years to see how the population in the 78121 area has changed over the last 5 years.

Year Population Change 5-Year Change
2021
13,730
+6.43%
+7.89%
2020
12,901
 -2.82% -
2019
13,276
+1.51%
-
2018
13,078
+2.77%
-
2017
12,726
 - -

Population of 78121 by Race and Ethnicity

How much has the race and ethnicity of the population in the 78121 zip code changed? The US Census Bureau gives us a few defined types that the population is broken down into.

Let's look at the total numbers and also the change over the last 5 years.

Race 2021 2017 Change
White
70.6%
75.7%
 -6.74%
Black/African American
1.9%
3%
 -36.67%
Native
0%
0.4%
 -100.00%
Hispanic
25.1%
19.5%
 +28.72%
Asian
0.2%
0.1%
 +100.00%
Hawaiian/Pacific Islander
0%
0%
 0.00%
Two Or More Races
2%
1.3%
 +53.85%
Other
0.2%
0%
 0.00%

This data can be very important for anybody studying the 78121 zip for a number of reasons, including social and economic research, planning and development, and marketing to a multi-cultural population.

Note that the Native group includes both Native American and Alaskan Native people.

Population of 78121 by Age and Gender

We can also monitor the change of the age and gender in the 78121 zip code to track track trends in the population over time.

We can see how the population in 78121 has changed over the last 5 years by median age as a total, and also by male and female.

Year Total Male Female
2021 39.8 +1.79% 39.5 +4.5% 40.2 -0.25%
2020 39.1 +1.56% 37.8 +0.8% 40.3 +0.75%
2019 38.5 +1.32% 37.5 -2.34% 40 +7.24%
2018 38 -1.3% 38.4 0% 37.3 -3.37%
2017 38.5 - 38.4 - 38.6 -

The median age of the 78121 zip gives you an idea of the age distribution, with half of the population being older than the median age and half being younger.

This can then be used to infer and compare against birth rates, parent ages, and more metrics to understand the population. For example, an increasing median age indicates an aging population in the 78121 area, which can be a sign of a declining population in terms of birth rates and workforce participation.

Age 2021 2017
(Years) Male Female Male Female
0 to 9 952 +3.7% 614 +50.66% 963 960
10 to 19 1,015 -1.84% 1,031 -7.33% 992 942
20 to 29 723 -6.3% 730 -36.27% 675 471
30 to 39 646 +26.45% 866 +24.64% 832 1,084
40 to 49 1,076 -10.19% 927 +4.02% 962 942
50 to 59 1,007 -5.47% 1,103 +16.92% 938 1,266
60 to 69 636 +26.5% 524 +34.66% 779 729
70+ 423 +39.41% 453 +30.98% 596 599

Median Household Income

The latest median household income for the 78121 zip code is $112,715.00.

In simple terms, the median income is the middle income of a group of people. Half of the people in the group make more than the median income, and half make less.

The median income is a good indicator of the overall income of a group of people, and can be used to compare against other metrics such as the average income, per capita income, and more.

Median Income by Age

We can also look at the median income by age to see how the median income varies by age, and how it compares to the overall median income for 78121.

  • Under 25
    $0.00
  • 25 to 44
    $125,472.00
  • 45 to 64
    $117,434.00
  • 65 and over
    $66,667.00

Average Household Income

Whenever we ask what is the average household income in the 78121 zip code, we are actually talking about the mean household income.

This is calculated by adding up all the incomes of all the households in 78121, and then dividing that number by the total number of households.

This is a good way to get a general idea of the average income of a group of people, but it can be skewed by a very high or very low incomes.

The average household income of 78121 is currently $128,026.00.

In terms of accurately summarizing income at a geographic level, the median income is a better metric than the average income because it isn't affected by a small number of very high or very low incomes.

If you had an area where the average income was greater than the median, it can mean that there is significant income inequality, with income being concentrated in a small number of wealthy households.

18.23% of households in 78121 are classed as high income households (making $200,000+ per year).

Household Income Tiers

The US Census Bureau divides households into income tiers based on the median income for the area. This is a good way to compare the income of 78121 against other zip codes.

  • Less than $24,999
    7.36%
  • $25,000 to $49,999
    11.48%
  • $50,000 to $74,999
    12.74%
  • $75,000 to $99,999
    12.45%
  • $100,000 to $149,999
    23.18%
  • $150,000 to $199,999
    14.55%
  • $200,000 or more
    18.23%

Per Capita Income

The per capita income in 78121 is $44,746.00.

Per capita income is the average income of a person in a given area. It is calculated by dividing the total income of 78121 by the total population of 78121.

This is different from the average or mean income because it includes and accounts for all people living in the 78121 area, including people like children, the elderly, unemployed people, retired people, and more.

Education Levels

We can also look at the education levels in 78121 to see how many people have a high school degree, a bachelor's degree, or a graduate degree.

Educational attainment is a good indicator of the overall education level of a population, and can be used to compare against other metrics such as the average income, per capita income, and more to see how education levels affect income, unemployment rates, and more.

  • Master's degree or higher
    10.13%
  • Bachelor's degree
    33.31%
  • Some college or associate's degree
    15.05%
  • High school diploma or equivalent
    39.56%
  • Less than high school diploma
    1.96%

Employment

Employment rates are all based around the total population in 78121 that are over the age of 16.

Currently, the total population of the 78121 zip over the age of 16 is 10,570.

Of those people, a total of 67.80% are working or actively looking for work. This is called the labor force participation rate.

The participation rate is a useful market measure because it shows the relative amount of labor resources available to the economy.

The employment to total population rate in 78121 is 65.20%.

Employment by Age

We can look at the employment rates by age to see how it compares to the overall employment rate. Here's how that breaks down for the 78121 zip code.

Age Population Participation Unemployment Rate
16 to 19 years 697 39.50% 11.30%
20 to 24 years 529 80.00% 3.50%
25 to 29 years 617 91.20% 5.90%
30 to 34 years 821 82.50% 0.40%
35 to 44 years 2,085 83.70% 1.20%
45 to 54 years 2,046 87.40% 5.40%
55 to 59 years 1,072 60.40% 0.60%
60 to 64 years 940 60.30% 3.40%
65 to 74 years 928 30.40% 6.40%
75 years and over 835 23.60% 0.00%

Employment by Race

Another very interesting employment statistic we can look at is the employment and unemployment rates by race in 78121. The table below shows the rates for each of the ethnicity groups types defined by the US Census Bureau (which we mentioned earlier in this article).

Age Population Participation Unemployment Rate
White 8,928 67.10% 3.30%
Black or African American 123 90.20% 7.20%
American Indian and Alaska Native 2 100.00% 0.00%
Asian 15 0.00% 0.00%
Native Hawaiian and Other Pacific Islander 0 0.00% 0.00%
Other 374 65.80% 1.60%
Two or more races 1,128 72.30% 4.00%
Hispanic or Latino 2,650 71.90% 3.80%
Not Hispanic or Latino 7,503 66.70% 3.20%

Occupations

In this section we can look at the most common occupations for people living in the 78121 area as well as the gender breakdown and earnings of them.

The total population of civilian employees that are 16 years old or older in 78121 is 6,894, with median earnings of $53,964.00.

Women in 78121 are earning approximately 57.90% of the men's earnings.

Population Earnings
Total 6,894 $53,964.00
Male 3,819 $71,169.00
Female 3,075 $41,195.00

Occupations by Category

In the table below, we can break down the population and earnings for 78121 even further by occupation. The list of occupation categories below will show you how many people are employed in each category and the median earnings of each profession.

Occupation Employed Earnings
Management 1,059 $74,797.00
Business and Financial 322 $95,417.00
Computer and Mathematical 260 $102,917.00
Architecture and Engineering 184 $84,583.00
Life, Physical, and Social Science 72 $52,500.00
Community and Social Service 129 $41,125.00
Legal 44 $207,708.00
Educational and Library 337 $56,134.00
Arts, Design, Entertainment, Sports, and Media 69 $18,229.00
Healthcare Practitioners 286 $74,286.00
Healthcare Support 77 $13,977.00
Firefighters and Protective Service 11 $0.00
Law Enforcement 128 $110,139.00
Food Preparation and Serving 278 $11,429.00
Building and Grounds Cleaning 265 $14,156.00
Personal Care and Service 139 $25,365.00
Sales 877 $37,673.00
Office and Administrative Support 826 $40,187.00
Farming, Fishing, and Forestry 0 $0.00
Construction and Extraction 336 $51,591.00
Installation, Maintenance, and Repair 422 $75,187.00
Production 299 $71,541.00
Transportation and Material Moving 271 $79,948.00

Occupations by Gender

Now we can also look at the occupations by category for 78121 when it is broken down by male and female.

This lets us see how many male and females work in each occupation, the median earnings, and the male to female ratio of earnings for 78121.

That last metric is important because it can be used to look at the gender pay gap between men and women.

Occupation Male Female
Population Earnings Population Earnings
Management 624 $83,348.00 435 $66,494.00
Business and Financial 224 $96,458.00 98 $71,667.00
Computer and Mathematical 192 $117,576.00 68 $36,889.00
Architecture and Engineering 145 $110,288.00 39 $0.00
Life, Physical, and Social Science 31 $62,321.00 41 $0.00
Community and Social Service 47 $57,917.00 82 $39,333.00
Legal 2 $0.00 42 $207,813.00
Educational and Library 52 $71,161.00 285 $54,906.00
Arts, Design, Entertainment, Sports, and Media 45 $0.00 24 $0.00
Healthcare Practitioners 80 $250,001.00 206 $48,400.00
Healthcare Support 0 $0.00 77 $13,977.00
Firefighters and Protective Service 11 $0.00 0 $0.00
Law Enforcement 97 $86,750.00 31 $0.00
Food Preparation and Serving 132 $11,429.00 146 $13,750.00
Building and Grounds Cleaning 202 $25,245.00 63 $13,844.00
Personal Care and Service 29 $0.00 110 $18,500.00
Sales 336 $45,909.00 541 $29,192.00
Office and Administrative Support 231 $42,473.00 595 $38,015.00
Farming, Fishing, and Forestry 0 $0.00 0 $0.00
Construction and Extraction 315 $51,629.00 21 $0.00
Installation, Maintenance, and Repair 418 $75,261.00 4 $0.00
Production 253 $73,583.00 46 $36,875.00
Transportation and Material Moving 212 $85,906.00 59 $68,893.00

Households and Family Size

A household is defined by the US Census Bureau as a group of people who occupy a housing unit. A housing unit is a house, apartment, mobile home, group of rooms, or single room occupied as separate living quarters.

There are currently 4,755 households in 78121, with an average household size of 2.87 people.

A family is defined as a group of two or more people related by birth, marriage, or adoption who live together in the same household.

There are 4,070 families living in the 78121 zip code with an average family size of 3.11 people.

Households by Marital Status

The four categories of household by marital status are:

  • Married-couple family
  • Male householder with no spouse present
  • Female household with no spouse present
  • Nonfamily household

The table below shows the total number of households and families, with the average sizes of each, that live in 78121:

Married Male Female Nonfamily
Total Households 3,501 274 295 685
Average Household Size 3.21 2.43 3.28 1.17
Total Families 3,501 274 295 0
Average Household Size 3.18 2.25 3.08 0

Poverty

Of the 4,070 families living in 78121, 4.10% are considered to be below the poverty threshold.

The table below shows the latest poverty thresholds in 78121:

Household Size Poverty Threshold
1 Person $14,580.00
2 People $19,720.00
3 People $24,860.00
4 People $30,000.00
5 People $35,140.00
6 People $40,280.00
7 People $45,420.00
8 People $50,560.00

Housing

There are 5,233 housing units in 78121.

The table below shows the split between occupied and vacant units:

Total Percentage
Occupied 4,755 90.87%
Vacant 478 9.13%

7.47% of the total 5,233 housing units in 78121 are rental units. This is approximately 391 properties.

For owner-occupied housing units, a total of 4,304 are occupied by the owner - or 82.25% of the total.

Rental Rates

The median rent for a property in 78121 is $1,111.00.

In the chart below, we can look at the number of rental properties in 78121 that fall into a particular rent range. These can then be used to compare with other areas, or to see how they have changed over time.

  • No rent paid
    60
  • Less than $500
    30
  • $500 to $999
    123
  • $1,000 to $1,499
    146
  • $1,500 to $1,999
    84
  • $2,000 to $2,499
    8
  • $2,500 to $2,999
    0
  • $3,000 or more
    0

Property Value

The median value of a property in 78121 is $278,500.00.

Just like with rental rates, we can look at the number of properties in 78121 that fall into a particular value range.

  • Less than $50,000
    399
  • $50,000 to $99,999
    201
  • $100,000 to $149,999
    414
  • $150,000 to $199,999
    458
  • $200,000 to $299,999
    859
  • $300,000 to $499,999
    1,520
  • $500,000 to $999,999
    419
  • $1,000,000 or more
    34

Property Age

We can also look at the age of properties in 78121. The chart below shows the number of properties in 78121 that fall into a particular age range.

  • 1939 or earlier
    96
  • 1940 to 1949
    67
  • 1950 to 1959
    73
  • 1960 to 1969
    52
  • 1970 to 1979
    260
  • 1980 to 1989
    556
  • 1990 to 1999
    1,292
  • 2000 to 2009
    1,568
  • 2010 to 2013
    1,251
  • 2014 or later
    18

Vehicles per Household

The number of vehicles available per household can be a good indicator of the level of affluence in an area. The chart below shows the number of households in 78121 that have a particular number of vehicles available.

  • No vehicles available
    72
  • 1 vehicle available
    806
  • 2 vehicles available
    1,794
  • 3 or more vehicles available
    2,083

Commuting to Work

In this section, we can also look at how people in 78121 get to work. The chart below shows the number of people in 78121 that commute to work in a particular way.

37.1 minutes is the average travel time to work for people in 78121.

These commute times can be compared to other date like income and educational levels to see how they relate to each other and if there are any trends in the data that might suggest a correlation.

  • Less than 5 minutes
    86
  • 5 to 9 minutes
    464
  • 10 to 14 minutes
    279
  • 15 to 19 minutes
    614
  • 20 to 24 minutes
    434
  • 25 to 29 minutes
    370
  • 30 to 34 minutes
    681
  • 35 to 39 minutes
    302
  • 40 to 44 minutes
    454
  • 45 to 59 minutes
    1,547
  • 60 to 89 minutes
    605
  • 90 or more minutes
    193

Summary

We've covered a LOT of demographic and population data for 78121 in this article! Hopefully you have found it very useful in your research of the area.

If you use any of the data found on this page, please consider linking back to USPopulation.org as the source and if you have any feedback or data requests, click here to contact us.

States in 78121

If you want to see how the population and demographics of 78121 compare to other zip codes in Texas, check out the list of all Texas zip codes below: